Mark Engelhard is a chemist in PNNL's Energy Processes and Materials Division. Since 1980, Engelhard’s research has involved advancing and utilizing surface sensitive techniques, particularly X-ray photoelectron spectroscopy (XPS), to study surface and interphase chemistry. He has worked as principal investigator and scientist on fundamental and applied research projects that involve collaborations with academic, government, and industrial partners. 

Based on this work and use of specially developed sample handling and processing capabilities associated with XPS systems, Engelhard has authored or co-authored 593 peer reviewed scientific publications. His Web of Science Hirsch index is 115 and his Google Scholar Hirsch index is 126.  Engelhard has been named a Highly Cited Researcher by Clarivate Analytics starting in 2018 through 2023. He has authored or co-authored five book chapters and more than 15 technical reports, and has edited three special journal volumes for AVS Journals. Engelhard’s total sum of publication citations is over 48,500 (Web of Science) and over 61,500 (Google Scholar).

Affiliations and Professional Service

  • Chair of the AVS Science and Technology Society AVS 70 Program Committee (2024)
  • Served as a member of AVS Science and Technology Society Board of Director’s (2021-2023)
  • Editorial Board Member, Surface Science Spectra (SSS) (2019 – Present)  

  • Chair, Editorial Board, SSS, AVS (2019 – Present) 

  • Member, Awards Canvasing Committee, AVS (2017 – Present)  

  • Executive Member, Applied Surface Science Division (ASSD) Program Committee, AVS (2016 – Present)  

  • Representative, Pacific Northwest Chapter (PNWAVS), Central Washington (2016 – Present)  

  • Co-Chair, Chemical Safety Advisory Committee, PNNL (2016 – Present)  

  • Member, Nanoscale Material Safety Committee, PNNL (2016 – Present)  

  • Co-Chair, 39th ASSD Surface Analysis, SIMS USA, and the 29th PNWAVS Symposium, AVS 

  • Invited Speaker and Session Moderator, 16th Topical Conference on Quantitative Surface Analysis, Nashville, TN, AVS (2016)  

  • Conference Chair, 25th Annual Symposium of the Pacific Northwest, AVS (2014) 

  • Head of Delegation, Technical Committee TC201 on Surface Chemical Analysis, U.S. International Standards Organization (ISO) (2013 – Present)  

  • Member, PNWAVS (2013 – 2016)  

  • Chair, PNWAVS (2013 – 2014) 

  • Member, Recommended Practices Committee, AVS (2011 – Present)  

  • Secretary, TC-201 Surface Chemical Analysis SC2 "General Procedures," ISO (2011 – 2018)  

  • Member, International Committee E42 on Surface Analysis, ASTM (2001 – Present) 

  • ISO (2011 – Present)  

  • Associate Editor, SSS, AVS (2008 – Present)  

  • Member, Topical Conference Committee, AVS (2008 – Present) 

  • Member, Publications Committee, Journal of Vacuum Science and Technology (JVST A), JVST B, Biointerphases, and SSS (2008 – 2015)  

  • Member, Finance, Membership, and Marketing and Communications Committees, AVS (2008 – 2010)  

  • Chair, International Subcommittee E42-08 Ion Beam Sputtering, ASTM (2001 – 2013)  

  • Member, Executive Committee, ASTM International (2001 – 2013)   

  • Chair, Subcommittee of E42-08, Ion Beam Sputtering, ASTM International (2001 – 2013) 

  • Member, AVS Science and Technology Society (1990 – Present)  

  • Chair Elect, ASSD, AVS (1990 – Present)  

  • Guest Editor, JVST A, AVS (1990 – Present)  

Awards and Recognitions

  • Highly Cited Researcher, Top 1% of citations for a publication field during the last decade, Web of Science/Clarivate Analytics (2018 – 2023)  

  • Cedric Powell Award, Committee E42 on Surface Analysis, ASTM International (2020) 

  • Enabling the Safe Conduct of Research Laboratory Assist Award, Earth and Biological Sciences Directorate, PNNL (2019) 

  • Service Recognition Award for Chairing the Directorate Safety and Operation Committee for 3 years, Earth and Biological Sciences Directorate, PNNL (2019) 

  • Outstanding Contribution Award for Co-Chairing the 30th Annual Symposium on Applied Surface Science and 29th Annual Symposium of the PNWC, AVS Science, and Technology Society Meeting held at EMSL in Richland, WA, June 19-22 (2018) 

  • Laboratory Safety Award, Earth and Biological Sciences Directorate, PNNL (2017, 2019) 

  • Of-the-Year Award for Outstanding Efforts in the 2017 publication “Electrolyte Additive Enabled Fast Charging and Stable Cycling Lithium Metal Batteries” Nature Energy, 2, 17012 DOI: 10.1038/nenergy.2017.12, Energy and Environment Directorate, PNNL (2017) 

  • Outstanding Performance Award in recognition for the Advanced Materials paper “Stabilization of Li Metal Anode in DMSO-Based Electrolytes via Optimization of Salt-Solvent Coordination for Li-O2 Batteries Advanced Energy Materials,” 7 (14) 1602605 DOI: 10.1002/aenm.201602605, Physical and Computational Sciences Directorate, PNNL (2017) 

  • Outstanding Performance Award in recognition for Lithium Metal Battery Research, Energy and Environment Directorate, PNNL (2017) 

  • Outstanding Performance Award for contributions to the Nature Communications article “Rational Design of Efficient Electrode-Electrolyte Interfaces for Solid-State Energy Storage Using Soft-Landing,” 7:11399. DOI: 10.1038/ncomms11399, Physical and Computational Sciences Directorate, PNNL (2016) 

  • Publication of the Year Award for “Inorganic Tin Aluminophosphate Nanocomposite for Reductive Separation of Pertechnetate,” Environmental Science Nano, 3 1003-1013. DOI: 10.1039/c6en00130, Energy and Environment Directorate, PNNL (2016) 

  • Elected Fellow, AVS Science and Technology Society (2013) 

  • Organizational Development Award, PNNL (2013) 

  • Director's Award for outstanding efforts in support of strategy for achieving high-impact science and marquee capabilities, outstanding management and operations, and exceptional user outreach and service, EMSL (2008) 

  • Director's Award for outstanding leadership as a cognizant space manager, EMSL (2007) 

  • Outstanding Performance Award for recognition of outstanding scientific contributions, Fundamental Science Directorate, PNNL (2003) 

  • Outstanding Performance Award for recognition of extensive interactions with users and research in the application of XPS to address critical surface science issues, Fundamental Science Directorate, PNNL (2003) 

  • Outstanding Performance Award for organizational performance with users, EMSL (2003) 

  • Outstanding Performance Award, low K technical team for scientific and technology development contribution, PNNL (2000) 

  • Outstanding Team Performance Award, low K mesoporous dielectrics technical team, PNNL (2000) 

  • George T. Hanyo Award recognizing outstanding performance in technical support of research or development in areas of interest to the Society, AVS Society (1997) 

  • Director's Award for Excellence, Structural Materials Research group, PNNL (1993) 

  • Outstanding Scientific Accomplishment in Materials Chemistry, U.S. Department of Energy (1992) 



Y. Qiu, D. Ray, L. Yan, X. Li, M. Song, M. H. Engelhard, J. Sun, M. S. Lee, X. Zhang, T. M. Nguyen, V. A. Glezakou, Y. Wang, R. Rousseau, and Y. Shao, “A proton relay for the rate enhancement of electrochemical hydrogen reactions at heterogeneous interfaces” ACS (2023)

Y. Xu, H. Jia, P. Gao, D. E. Galvez-Aranda, S. P. Beltran, X. Cao, P. M. L. Le, J. Liu, M.  H. Engelhard, S. Li, G. Ren, J. M. Seminario, P. B. Balbuena, J. G. Zhang, W. Xu, and C. Wang, “Direct in situ measurements of electrical properties of solid electrolyte interphase on lithium metal anodes” Nature Energy (2023)

Z. Yang, L. Wang, J. A. Dhas, M. H. Engelhard, M. E. Bowden, W. Liu, Z. Zhu, C. Wang, S. A. Chambers, P. V. Sushko, and Y. Du,“Guided anisotropic oxygen transport in vacancy ordered oxides” Nature Communications (2023) 14, 6068

M. Weiser, M. J. Olszta, M. H. Engelhard, Z. Zhu, and Daniel K. Schreiber, “Visualizing oxygen transport pathways during intergranular oxidation in Ni-Cr” Nature Materials Degradation (2023) V7, N70

D. J. Kautz, X. Cao, B. E. Mattews, P. Gao, Y. Xu, K. S. Han, F. Omenya, M. H. Engelhard, H. Jia, C. Wang, J. G. Zhan, and W. Xu “Designing Electrolytes with Controlled Solvation Structure for Fast-Charging Lithium-Ion Batteries” Advanced Energy Materials (2023) 2301199

R. Hansen, E. Z. Dalton, R. B. Abney, M. H. Engelhard, G. C. Valdes, S. D. Burton, R. K. Chu, D. P. Veghte, S. China, J. B. Cliff, and J. D. Raff, “Reaction of Organic Matter with Nitronium Ion as a Source of Organic Nitrate Esters in Proxies for Organic Aerosols” ACS Earth and Space Chemistry (2023) PNNL-SA-184868

J. Zhang, W. Hu, B. Qian, H. Li, Berlin Sudduth, M. H. Engelhard, L. Zhang, J. Z. Hu, J. Sun, C. Zhang, and H. He, “Tuning Hydrogenation Chemistry of Pd-based Heterogeneous Catalysts by Introducing Homogeneous-like Ligands” Nature Communications (2023) 3944

L. E. Strange, M. H. Engelhard, C. D. Easton, J. Kim, and D. R. Baer, “Surface analysis insight note: X-ray photoelectron spectroscopy analysis of battery electrodes-Challenges with nickel-manganese-cobalt and Li examples using an Al K alpha x-ray source” Surface & Interface Analysis (2023)

M. Song, M. Prange, P. Ren, Z. Lu, J. Lee, J. Zheng, M. H. Engelhard, J. D. Yoreo, P. Sushk, and D. Li,” “Transitional Structures with Continuous Variations in Atomic Positions from Anatase to Rutile Improve Photocatalytic Activity” Advanced Materials Interfaces (2023) 2202306

Z. Zhang, J. Tian, Y. Lu, S. Yang, D. Jiang, W. Huang, Y. Li, J. Hong, A. Hoffman, S. Bare, M. H. Engelhard, A. K. Datye, and Y. Wang, “Memory-dictated Dynamics of Single-atom Pt on CeO2 for CO Oxidation” Nature Communications (2023) 2664

V. Dagle, G. B. Collinge, M. Rahman, A. D. Winkelman, W. Hu, J. Z. Hu, L. Kovarik, M. H. Engelhard, J. Jocz, Y. Wang, M. S. Lee, V. A. Glezakou, D. Ray, R. Rousseau, and R. Dagle, “Single-step conversion of ethanol into n-butene-rich olefins over metal catalysts supported on ZrO2-SiO2 mixed oxides” Applied Catalysis B: Environmental (2023) V331, 122707

S. Ding, Z. Lyu, J. A. Barr, F. Zhang, M. Wang, P. Tieu, M. H. Engelhard, Z. Feng, S. P. Beckman, X. Pan, J. C. Li, D. Du, and Y. Lin, “Effect of Phosphorus Modulation in Iron Single-atom Catalysts for Peroxidase Mimicking” (2023) Advanced Materials

H. Jia, J. Kim, P. Gao, Y. Xu, M. H. Engelhard, B. Matthews, C. Wang, W. Xu, “A Systematic Study on the Effects of Solvating Solvents and Additives in Localized High-Concentration Electrolytes over lectrochemical Performance of Lithium-Ion Batteries” Angewandte Chemie (2023)

K. Khivantsev, N. R. Jaegers, H. A. Aleksandrov, I. Song, X. I. Pereira-Hernandez, M. H. Engelhard, J. Tian, L. Chen, D. M. Meira, L. Kovarik, G. N. Vayssilov, Y. Wang*, and J. Szanyi, “Single Ru(II) ions on ceria as a highly active catalyst for abatement of NO” JACS (2023)

X. Cao, Y. Xu, L. Zou, J. Bao, Y Chen, B. Matthews, J. Hu, X. He, M. H. Engelhard, C. Niu, B. Arey, C. Wang, J. Xiao, J. Liu, C.Wang, X. Wu, and J. G. Zhang, “Stability of solid electrolyte interphases and calendar life of lithium metal batteries” Energy & Environmental Science (2023)

G. Feng, H. Jia, Y. Shi, X. Yang, Y. Liang, M. H. Engelhard, Y. Zhang, C. Yang, K. Xu, Y. Yao, W. Xu, and X. Shan, “Imaging Solid-Electrolyte-Interphase Dynamics Using Operando Reflection Interference Microscopy” Nature Nanotechnology (2023)

Z. Dong, A. Mukhtar, T. Ludwig, S. Akhade, S. Y. Kang, B. Wood, K. Grubel, M. H. Engelhard, T. Autrey and H. Lin, “Efficient Pd on carbon catalyst for ammonium formate dehydrogenation: Effect of surface oxygen functional groups” Applied Catalysis B (2023)

M. J. Taylor, H. Kim, W. Kew, A. Andersen, A. Bhattacharjee, M. H. Engelhard, and C. R. Anderton, “Atomistic simulations for investigation of substrate effects on lipid in-source fragmentation in Secondary Ion Mass Spectrometry” Biointerfaces (2023) V18(1), 011003

E. C. Ronnebro, M. H. Engelhard, D. J. Edwards, K. Grubel, A. L. Schemer-Kohrn, and R. T. Storms, “Evaluation of Hydrogen Gettering Rates Correlated to Surface Composition and Texture of Nickel-Plated Zircaloy Getters of Different Heat Treatment Procedures” Molecules (2023) 28(2) 762



J. P. Quinn., B. Wu, Y. Xu, M. H. Engelhard, J. Xiao, and C. Wang, “Tracking the oxidation of silicon anodes using cryo-EELS upon battery cycling” ACS Nano (2022) N12, 21063-21070

Y. Wu, T. Andana, Y. Wang, Y. Chen, E. D. Walter, M. H. Engelhard, K. G. Rappe, Y. Wang, and F. Gao, “A Comparative Study between Real-world and Laboratory Accelerated Aging of Cu/SSZ-13 SCR Catalysts” Applied Catalysis B: Environmental (2022) V318, 121807

H. Jia, Z. Yang, Y. Xu, P. Gao, L. Zhong, D. Wu, B. Fliegler, M. H. Engelhard, B. E. Matthews, B. Broekhuis, X. Cao, J. Fan, C. Wang, F. Lin, and Wu Xu, “Is Nonflammability of Electrolyte Overrated in the Overall Safety Performance of Lithium-Ion Batteries? A Sobering Revelation from a Completely Nonflammable Electrolyte” Advanced Energy Materials (2023) 13 (4), 2203144

L. E. Strange, M. H. Engelhard, Z. Yu and D. Lu, “Li7P2S8Br0.5I0.5 (LPSBI) Solid State Electrolyte by XPS” Surface Science Spectra (2022) V29, I2, 024008

X. Zhang, P. Gao, Z. Wu, M. H. Engelhard, X. Cao, H. Jia, Y. Xu, H. Liu, C. Wang, J. Liu, J. G. Zhang, P. Liu, and W. Xu, “Wu “Pinned electrode/electrolyte interphase and its formation origin for sulfurized polyacrylonitrile cathode in stable lithium batteries” ACS Applied Materials & Interfaces (2022)

A. Bhattacharjee, O. Qafoku, J. A. Richardson, L. N. Anderson, K. C. Schwar, L. M Bramer, G. X. Lomas, D. J. Orton, Z. Zhu, M. H. Engelhard, M. E. Bowden, W. C. Nelson, A. Jumpponen, J. K. Jansson, K. Hofmockel, and C. R. Anderton, “A Mineral-Doped Micromodel Platform Demonstrates Fungal Bridging of Carbon Hot Spots and Hyphal Transport of Mineral-Derived Nutrients” mSystems (2022) V7, I6

J. M. Kim, M. H. Engelhard, B. Lu, Y. Xu, S. Tan, B. E. Matthew, S. Tripathi, X. Cao, E. Hu, X. Q. Yang, C. Wang, Y. S. Meng, J. G. Zhang, and Wu Xu “High-current-density-charging Lithium Metal Batteries Enabled by Double-layer Protected Lithium Metal Anode” Advanced Functional Materials (2022) 32, N48, 2207172

Z. Lyu, S. Ding, P. Tieu, L. Fang, X. Li, T. Li, X. Pan, M. H. Engelhard, X. Ruan, D. Du, S. Li, and Y. Lin, “Single-Atomic Site Catalyst Enhanced Lateral Flow Immunoassay for Point-of-Care Detection of Herbicide” Research (2022) V2022, 9823290, doi/10.34133/2022/9823290

Y. Jin, Y. Xu, B. Xiao, M. H. Engelhard, R. Yi, T. D. Vo, and B. E. Matthews, “Stabilizing Interfacial Reactions for Stable Cycling of High-Voltage Sodium Batteries” Advanced Functional Materials (2022) 2204995

Z. Yu, S. L. Shang, A. Kiseuk, D. T. Marty, R. Feng, M. H. Engelhard, Z. K. Liu, and D. Lu, “Enhancing Moisture Stability of Sulfide Solid-State Electrolytes by Reversible Amphipathic Molecular Coating” ACS Applied Materials & Interfaces (2022) 14, 28, 32035–32042

T. Kaspar, Y. Du, M. H. Engelhard, D. R. Baer, J. Bharat, and J. H. Ngai, “Preface for the special topic collection honoring Dr. Scott Chambers' 70th birthday and his leadership in the science and technology of oxide thin films” (2022) V40, 4, 041602

H. Tian, W. Zhu, Q. Shi, S. Ding, Z. Lyu, M. Xu, X. Pan, M. H. Engelhard, D. Du, and Y. Lin, “Bimetallic IrxPb nanowire networks with enhanced electrocatalytic activity for oxygen evolution reaction” Journal of Materials Chemistry A (2022)

Y. Jin, P. M. L. Le, P. Gao, Y. Xu, B. Xiao, M. H. Engelhard, X. Cao, T. D. Vo, J. Hu, L. Zhong, B. E. Matthew, R. Yi, C. Wang, X. Li, and J. Liu, “Low-solvation electrolytes for high voltage sodium ion batteries” (2022) Nature Energy

M. M. Li, S. Tripathi, E. Polikarpov, N. L. Canfield, S. K. Han, J. M. Weller, E. C. Buck, M. H. Engelhard, D. M. Reed, V. L. Sprenkle, and G. Li, “Interfacial Engineering with a Nanoparticle-Decorated Porous Carbon Structure on beta ''-Alumina Solid-State Electrolytes for Molten Sodium Batteries” ACS Applied Materials & Interfaces (2022) V14, I22, 25534-25544

J. M. Kim, Y. Xu, M. H. Engelhard, J. Hu, H. S. Lim, H. Jia, Z. Yang, B. Matthews, S. Tripathi, X. Zhang, L. Zhong, F. Lon, C. Wang, and W. Xu, “Facile Dual-Protection Layer and Advanced Electrolyte Enhancing Performances of Cobalt-Free/Nickel-Rich Cathodes in Lithium-Ion Batteries” ACS Applied Materials & Interfaces (2022) V14, 15, 17405-17414

F. Lin, K. Rappé, L. Kovarik, M. Song, X. Li, M. H. Engelhard, and Y. Wang, “Effects of high-temperature CeO2 calcination on the activity of Pt/CeO2 catalysts for oxidation of unburned hydrocarbon fuels” Catalysis Science & Technology (2022)

M. M. Li, X. Zhan, E. Polikarpov, N. L. Canfield, M. H. Engelhard, J. M. Weller, D. M. Reed, V. L. Sprenkle, and G. Li, “A Freeze-Thaw Molten Salt Battery for Seasonal Storage”, Cell Reports Physical Science (2022)

X. Y. Yu, J. Gao, Y. Zhang, J. Son, J. E. Bara, K. E. O’Harra, M. H. Engelhard, D. J. Heldebrant, and R. Rousseau, “The interfacial compatibility between a potential CO2 separation membrane and capture solvents” Carbon Capture Science & Technology (2022) 2, 100037



P. Adiga, N. Doi, C. Wong, D. Santosa, L. J. Kuo, G. Gill, J. Silverstein, N. Avalos, J. V. Crum, M. H. Engelhard, K. Stoerzinger, and R. M. Asmussen, “The Influence of Transitional Metal Dopants on Reducing Chlorine Evolution During the Electrolysis of Raw Seawater” Applied Sciences (2021) V11, 24, 11911

Y. Qiu, J. A. Lopez-Ruiz, G. Zhu, M. H. Engelhard, O. Y. Gutierrez-Tinoco, and J. D. Holladay, “Electrocatalytic decarboxylation of carboxylic acids over RuO2 and Pt nanoparticles Applied Catalysis B: Environmental (2021) V305, 212060

H. Jia, Y. Xu, L. Zou, P. Gao, X. Zhang, B. Taing, B. E. Matthews, M. H. Engelhard, S. D. Burton, K. S. Han, L. Zhong, C. Wang, and W. Xu “Sulfone-based Electrolytes for High Energy Density Lithium-ion Batteries” Journal of Power Sources (2021) V527, 231171

H. Wang, J. Ryu, S. A. McClary, D. M. Long, M. Zhou, M. H. Engelhard, L. Zou, P. Kotula, K. S. Han, H. Jia, C. Wang, R. S. Assary, K. R. Zavadil, V. Murugesan, K. T. Mueller, and Y. Shao, “An Electrochemically Activated Nanofilm for Sustainable Mg Anode with Fast Charge Transfer KineticsJournal of The Electrochemical Society (2021) V168, 12, 120519 10.1149/1945-7111/ac3d2c

J. Son, E. Buck, S. L. Riechers, S. Tripathi, L. Strange, M. Engelhard, and X.-Y. Yu, “J. Son, E. Buck “Studying Corrosion Using Miniaturized Particle Attached Working Electrodes and the Nafion Membrane” Micromachines (2021) 12(11) 1411

B. O’Callahan, O. Qafoku, V. Balema, O. A. Negrete, A. Passian, M. H. Engelhard, and K. M. Waters, “Atomic force microscopy and infrared nanospectroscopy of COVID-19 spike protein for quantification of adhesion to common surfaces” Langmuir (2021) 37, 41, 12089-12097

C. Huyan, S. Ding, Z. Lyu, M. H. Engelhard, Y. Tian, D. Du, D. Liu and Y. Lin, “Selective Removal of Perfluorobutyric Acid Using an Electroactive Ion Exchanger Based on Polypyrrole@Iron Oxide on Carbon Cloth” ACS Applied Materials & Interfaces (2021) V13, 41, 48500-48507

S. Jana, M. Olszt, D. Edwards, M. H. Engelhard, A. Samanta, H. Ding, P. Murkute, O. B. Isgor, and A. Rohatgi, “Microstructural Basis for Improved Corrosion Resistance of Laser Surface Processed AZ31 Mg Alloy” Corrosion Science (2021) 191, 109707

D. Jiang, Y. Yao, T. Li, G. Wan, X. I. Pereira-Hernández, Y. Lu, J. Tian, K. Khivantsev, M. H. Engelhard, C. Sun, C. E. García-Vargas, A. S. Hoffman, S. R. Bare, A. K. Datye, L. Hu, and Y. Wang “Tailoring the Local Environment of Platinum in Single-Atom Pt1/CeO2 Catalysts for Robust Low-Temperature CO Oxidation” Angewandte Chemie (2021) 60, 26054-26062

H. Jia, X. Zhang, Y. Xu, L. Zou, J. Kim, P. Gao, M. H. Engelhard, Q. Li, C. Niu, B. Matthews, T, Lemmon, J. Hu, C. Wang, and W. Xu, “Toward the Practical Use of Cobalt-Free Lithium-Ion Batteries by an Advanced Ether-Based Electrolyte” ACS Applied Materials & Interfaces (2021) V13, 37, 44339-44347

J. Zhang, B. Sudduth, J. Sun, L. Kovarik, M. H. Engelhard, and Y. Wang, “Elucidating the Active Site and the Role of Alkali Metals in Selective Hydrodeoxygenation of Phenols over Iron-carbide-based Catalyst” ChemSusChem (2021)

Y. Y. Chu, U. Sanyal, X. H. S. Li, Y. Qiu, M. A. Song, M. H. Engelhard, S. D. Davidson, K. Koh, L. C. Meyer, J. Zheng, X. H. Xie, D. S. Li, J. Lu, O. Y. Gutierrez, Y. Wang, and Y. Y. Shao, “Tuning proton transfer and catalytic properties in triple junction nanostructured catalyst” Nano Energy (2021) 86, 106046

H. Wu, P. Gao, H. Jia, L. Zou, L. Zhang, X. Cao, M. H. Engelhard, M. E. Bowden, M. S. Ding, J. Hu, D. Hu, S. D. Burton, K. Xu, C. Wang, J. Zhang, and W. Xu, Wu, “A polymer-in-salt electrolyte with enhanced oxidative stability for lithium metal polymer batteries” ACS Applied Materials & Interfaces (2021) 13, (27), 31583-31593 10.1021/acsami.1c04637

P. Gao, H. Wu, X. Zhang, H. Jia, J. M. Kim, M. H. Engelhard, C. Niu, Z. Xu, J. G. Zhang, and W. Xu, “Optimization of Magnesium-Doped Lithium Metal Anode for High Performance Lithium Metal Batteries through Modeling and Experiment” Angewandte Chemie (2021) 133 (30), 16642-16649

B. J. Riley, S. Chong, R. M. Asmussen, A. Bourchy, and M. H. Engelhard, “Polyacrylonitrile Composites of Ag−Al−Si−O Aerogels and Xerogels” ACS Applied Polymer Materials (2021) 3, 3344-3354

H. Jia, Y. Xu, X. Zhang, S. D. Burton, P. Gao, B. E. Matthews, M. H. Engelhard, K. S. Han, L.  Zhong, C. Wang, and W. Xu, “Advanced low-flammable electrolytes for stable operation of high-voltage lithium-ion batteries” Angewandte Chemie International (2021) 60, I23, 12999-13006 10.1002/anie.202102403

C. L. Beck, B. J. Riley, S. Chong, N. Smith, D. R. Seiner, B. N. Seiner, M. H. Engelhard, and S. B. Clark, “Molecular Iodine Interactions with Fe, Ni, Cr, and Stainless Steel Alloys” Industrial and Engineering Chemistry Research (2021) V60, I6, 2447-2454 PNNL-SA-156259

X. Zhang, H. Jia, L. Zou, Y. Xu, L. Mu, Z. Yang, M. H. Engelhard, J. M. Kim, J. Hu, B. E. Matthews, C. Niu, C. Wang, H. Xin, F. Lin, and W. Xu, “Electrolyte Regulating toward Stabilization of Cobalt-Free Ultrahigh-Nickel Layered Oxide Cathode in Lithium-Ion Batteries” ACS Energy Letters (2021) 6, 1324–1332

D. R. Baer, G. E. McGuire, K. Artyushkova, C. D. Easton, M. H. Engelhard, and A. G. Shard, “Introduction to Topical Collection: Reproducibility Challenges and Solutions with a Focus on Guides to XPS Analysis” Journal of Vacuum Science & Technology A (2021) 39, 021601

X. Zhang, L. Zou, Z. Cui, H. Jia, M. H. Engelhard, B. E. Matthews, X. Cao, Q. Xie, C. Wang, M. Arumugam, J. Zhang, and W. Xu, “Stabilizing Ultrahigh-Nickel Layered Oxide Cathodes for High-Voltage Lithium Metal Batteries” Materials Today (2021)

X. Cao, P. Gao, X. Ren, L. Zou, M. H. Engelhard, B. E. Matthews, J. Hu, C. Niu, D. Li, B. W. Arey, C. Wang, J. Xiao, J. Liu, W. Xu, and J. G. Zhang, “Effects of Fluorinated Solvents on Electrolyte Solvation Structures and Electrode/Electrolyte Interphases for Lithium Metal Batteries” PNAS (2021) 118, 9

S. Chae, W. J. Kwak, K. S. Han, S. Li, M. H. Engelhard, J. Hu, C. Wang, X. Li, and J. G. Zhang, “Rational Design of Electrolytes for Long-Term Cycling of Si Anodes in Wide Temperature Range” ACS Energy Letters (2021) 6, 387-394 10.1021/acsenergylett.0c02214ACS

M. Li, X. Lu, X. Zhan, M. H. Engelhard, J. Bonnett, E. Polikarpov, K. Jung, D. Reed, V. Sprenkle, and G. Li, “High Performance Sodium-Sulfur Battery at Low Temperature Enabled by Superior Molten Na Wettability” ChemComm (2021) 57, 45-48.

  • Cao X., L. Zou, B.E. Matthews, L. Zhang, X. He, X. Ren, and M.H. Engelhard, et al. 2021. "Optimization of fluorinated orthoformate based electrolytes for practical high-voltage lithium metal batteries." Energy Storage Materials 34. PNNL-SA-153014. doi:10.1016/j.ensm.2020.08.035 


  • Baer D.R., D. Cant, D. Castner, G. Ceccone, M.H. Engelhard, A.S. Karakoti, and A. Mueller. 2020. "Chapter 4.2 - Preparation of nanoparticles for surface analysis." In Characterization of Nanoparticles: Measurement Processes for Nanoparticles, edited by V.-D. Hodoroabe, W.E.S. Unger and A.G. Shard. 295-347. Amsterdam: Elsevier. PNNL-SA-132981. doi:10.1016/B978-0-12-814182-3.00018-3 

  • Baer D.R., K. Artyushkova, H. Cohen, C.D. Easton, M.H. Engelhard, T.R. Gengenbach, and G. Greczynski, et al. 2020. "XPS Guide: Charge neutralization and binding energy referencing for insulating samples." Journal of Vacuum Science and Technology A--Vacuum, Surfaces and Films 38, no. 3:031204. PNNL-SA-151014. doi:10.1116/6.0000057 

  • Boiteau R.M., R.K. Kukkadapu, J.B. Cliff, C.R. Smallwood, L. Kovarik, M.G. Wirth, and M.H. Engelhard, et al. 2020. "Calcareous organic matter coatings sequester siderophores in alkaline soils." Science of the Total Environment 724. PNNL-SA-147851. doi:10.1016/j.scitotenv.2020.138250 

  • Cui W., X. Zhang, C.I. Pearce, M.H. Engelhard, H. Zhang, Y. Wang, and S.M. Heald, et al. 2020. "Effect of Cr(III) adsorption on the dissolution of boehmite nanoparticles in caustic solution." Environmental Science & Technology 54, no. 10:6375-6384. PNNL-SA-150322. doi:10.1021/acs.est.9b07881 

  • Engelhard M.H., D.R. Baer, A. Herrera-Gomez, and P.M. Sherwood. 2020. "Introductory guide to backgrounds in XPS spectra and their impact on determining peak intensities." Journal of Vacuum Science and Technology A--Vacuum, Surfaces and Films 38, no. 6:Article No. 063203. PNNL-SA-153379. doi:10.1116/6.0000359 

  • Kwak W., S. Chae, R. Feng, P. Gao, J. Read, M.H. Engelhard, and L. Zhong, et al. 2020. "Optimized Electrolyte with High Electrochemical Stability and Oxygen Solubility for Lithium-Oxygen and Lithium-Air Batteries." ACS Energy Letters 5, no. 7:2182-2190. PNNL-SA-150369. doi:10.1021/acsenergylett.0c00809 

  • Lee M., K. Han, J. Lee, Y. Shin, T.C. Kaspar, Y. Chen, and M.H. Engelhard, et al. 2020. "Defect-induced anisotropic surface reactivity and ion transfer processes of anatase nanoparticles." Materials Today Chemistry 17. PNNL-SA-150217. doi:10.1016/j.mtchem.2020.100290 

  • Li H., J. Pang, N.R. Jaegers, L. Kovarik, M.H. Engelhard, A.W. Savoy, and J.Z. Hu, et al. 2020. "Conversion of ethanol to 1,3-butadiene over Ag-ZrO2/SiO2 catalysts: The role of surface interfaces." Journal of Energy Chemistry 54. PNNL-SA-153728. doi:10.1016/j.jechem.2020.05.038 

  • Linford M.R., V.S. Smentkowski, J.T. Grant, C.R. Brundle, P.M. Sherwood, M.C. Biesinger,, and J.H. Terry, et al. 2020. "Proliferation of Faulty Materials Data Analysis in the Literature." Microscopy and Microanalysis 26, no. 1:1-2. PNNL-SA-141475. doi:10.1017/S1431927619015332 

  • Liu J., E. Jia, K.A. Stoerzinger, L. Wang, Y. Wang, Z. Yang, and D. Shen, et al. 2020. "Dynamic Lattice Oxygen Participation on Perovskite LaNiO3 During Oxygen Evolution Reaction." Journal of Physical Chemistry C 124, no. 28:15386-15390. PNNL-SA-152668. doi:10.1021/acs.jpcc.0c04808 

  • Liu W., L. Huang, R.E. Komorek, P. Handakumbura, Y. Zhou, D. Hu, and M.H. Engelhard, et al. 2020. "Correlative Surface Imaging Reveals Chemical Signatures for Bacterial Hotspots on Plant Roots." Analyst 145, no. 2:393-401. PNNL-SA-149225. doi:10.1039/C9AN01954E 

  • Prieur D., W. Bonani, K. Popa, O. Walter, K.W. Kriegsman, M.H. Engelhard, and X. Guo, et al. 2020. "Size Dependence of Lattice Parameter and Electronic Structure in CeO2 Nanoparticles." Inorganic Chemistry 59, no. 8:5760-5767. PNNL-SA-149920. doi:10.1021/acs.inorgchem.0c00506 

  • Song J., K. Wang, J. Zheng, M.H. Engelhard, B. Xiao, E. Hu, and Z. Zhu, et al. 2020. "Controlling Surface Phase Transition and Chemical Reactivity of O3-Layered Metal Oxide Cathodes for High-Performance Na-ion Batteries." ACS Energy Letters 5, no. 6:1718-1725. PNNL-SA-141318. doi:10.1021/acsenergylett.0c00700 

  • Wang H., Y. Shao, H. Pan, X. Feng, Y. Chen, Y. Liu, and E.D. Walter, et al. 2020. "A lithium-sulfur battery with a solution-mediated pathway operating under lean electrolyte conditions." Nano Energy 76. PNNL-SA-143093. doi:10.1016/j.nanoen.2020.105041 

  • Xu Y., H. Wu, H. Jia, M.H. Engelhard, J. Zhang, W. Xu, and C. Wang. 2020. "Sweeping potential regulated structural and chemical evolution of solid-electrolyte interphase on Cu and Li as revealed by cryo-TEM." Nano Energy 76. PNNL-SA-153402. doi:10.1016/j.nanoen.2020.105040 

  • Yu J., Y. Zhou, M.H. Engelhard, Y. Zhang, J. Son, S. Liu, and Z. Zhu, et al. 2020. "In situ molecular imaging of adsorbed protein films in water indicating hydrophobicity and hydrophilicity." Scientific Reports 10, no. 1: Article No. 3695. PNNL-SA-152103. doi:10.1038/s41598-020-60428-1 

  • Zhan X., J.F. Bonnett, M.H. Engelhard, D.M. Reed, V.L. Sprenkle, and G. Li. 2020. "A High-Performance Na-Al Battery Based on Reversible NaAlCl4 Catholyte." Advanced Energy Materials 10, no. 40:2001378. PNNL-SA-150192. doi:10.1002/aenm.202001378 

  • Zhang J., J. Sun, L. Kovarik, M.H. Engelhard, L. Du, B. Sudduth, and H. Li, et al. 2020. "Surface Engineering of Earth-abundant Fe Catalysts for Selective Hydrodeoxygenation of Phenolics in Liquid Phase." Chemical Science 11, no. 23:5874-5880. PNNL-SA-149539. doi:10.1039/d0sc00983k 

  • Zhang X., L. Zou, Y. Xu, X. Cao, M.H. Engelhard, B.E. Matthews, and L. Zhong, et al. 2020. "Advanced electrolytes for fast-charging high-voltage lithium-ion batteries in wide-temperature range." Advanced Energy Materials 10, no. 22:2000368. PNNL-SA-150274. doi:10.1002/aenm.202000368 


  • Avval T.G., B. Moein, G.H. Major, M.H. Engelhard, and M.R. Linford. 2019. "Plotting XPS Narrow Scans (and other Data) with MATLAB's Powerful Plotting Capabilities, 2. An Introduction to Handle Graphics." Vacuum Technology & Coating. PNNL-SA-151236. 

  • Avval T.G., G.H. Major, B. Moein, M.H. Engelhard, and M.R. Linford. 2019. "Plotting XPS Narrow Scans (and Other data) with MATLAB, 1. Using the 'plot' and 'subplot' functions." Vacuum Technology & Coating 20, no. 11:35-37. PNNL-SA-148773. 

  • Baer D.R., K. Artyushkova, C.R. Brundle, J. Castle, M.H. Engelhard, K.J. Gaskell, and J.T. Grant, et al. 2019. "Practical guides for x-ray photoelectron spectroscopy: First steps in planning, conducting, and reporting XPS measurements." Journal of Vacuum Science and Technology A--Vacuum, Surfaces and Films 37, no. 3:Article number 031401. PNNL-SA-137067. doi:10.1116/1.5065501 

  • Cao X., X. Ren, L. Zou, M.H. Engelhard, W. Huang, H. Wang, and B.E. Matthews, et al. 2019. "Monolithic solid-electrolyte interphases formed in fluorinated orthoformate-based electrolytes minimize Li depletion and pulverization." Nature Energy 4, no. 9:796-805. PNNL-SA-141828. doi:10.1038/s41560-019-0464-5 

  • Cao X., Y. Xu, L. Zhang, M.H. Engelhard, L. Zhong, X. Ren, and H. Jia, et al. 2019. "Nonflammable Electrolytes for Lithium Ion Batteries Enabled by Ultraconformal Passivation Interphases." ACS Energy Letters 4, no. 10:2529-2534. PNNL-SA-145269. doi:10.1021/acsenergylett.9b01926 

  • Cui W., X. Zhang, C.I. Pearce, Y. Chen, S. Zhang, W. Liu, and M.H. Engelhard, et al. 2019. "Cr(III) adsorption by cluster formation on boehmite nanoplates in highly alkaline solution." Environmental Science & Technology 53, no. 18:11043-11055. PNNL-SA-143650. doi:10.1021/acs.est.9b02693 

  • Jin Y., L. Zou, L. Liu, M.H. Engelhard, R.L. Patel, Z. Nie, and K. Han, et al. 2019. "Joint charge storage for high-rate aqueous zinc-manganese dioxide batteries." Advanced Materials 31, no. 29:Article No. 1900567. PNNL-SA-140329. doi:10.1002/adma.201900567 

  • Kuo C., Y. Lu, L. Kovarik, M.H. Engelhard, and A.M. Karim. 2019. "Structure Sensitivity of Acetylene Semi-Hydrogenation on Pt Single Atoms and Subnanometer Clusters." ACS Catalysis 9, no. 12:11030-11041. PNNL-SA-144951. doi:10.1021/acscatal.9b02840 

  • Liu B., Q. Li, M.H. Engelhard, Y. He, X. Zhang, D. Mei, and C. Wang, et al. 2019. "Constructing Robust Electrode/Electrolyte Interphases to Enable Wide Temperature Applications of Lithium-Ion Batteries." ACS Applied Materials & Interfaces 11, no. 24:21496-21505. PNNL-SA-141223. doi:10.1021/acsami.9b03821 

  • Pereira Hernandez X.I., A. DelaRiva, V. Muravev, D. Kunwar, H. Xiong, B.J. Sudduth, and M.H. Engelhard, et al. 2019. "Tuning Pt/CeO2 Interactions By High-temperature Vapor-phase Synthesis For Improved Reducibility of Lattice Oxygen." Nature Communications 10, no. 1:Article number 1358. PNNL-SA-132985. doi:10.1038/s41467-019-09308-5 

  • Ren P., M. Song, J. Lee, J. Zheng, Z. Lu, M.H. Engelhard, and X. Yang, et al. 2019. "Edge Dislocations Induce Improved Photocatalytic Efficiency of Colored TiO2." Advanced Materials Interfaces 6, no. 17:Article Number 1901121. PNNL-SA-145888. doi:10.1002/admi.201901121 

  • Ren X., L. Zou, S. Jiao, D. Mei, M.H. Engelhard, Q. Li, and H. Lee, et al. 2019. "High-Concentration Ether Electrolytes for Stable High-Voltage Lithium Metal Batteries." ACS Energy Letters 4, no. 4:896-902. PNNL-SA-134330. doi:10.1021/acsenergylett.9b00381 

  • Ren X., L. Zou, X. Cao, M.H. Engelhard, W. Liu, S.D. Burton, and H. Lee, et al. 2019. "Enabling High-Voltage Lithium-Metal Batteries under Practical Conditions." Joule 3, no. 7:1662-1676. PNNL-SA-140396. doi:10.1016/j.joule.2019.05.006 

  • Shutthanandan V., M.I. Nandasiri, J. Zheng, M.H. Engelhard, W. Xu, S. Thevuthasan, and V. Murugesan. 2019. "Applications of XPS in the Characterization of Battery Materials." Journal of Electron Spectroscopy and Related Phenomena 231. PNNL-SA-134570. doi:10.1016/j.elspec.2018.05.005 

  • Song J., D. Xiao, H. Jia, G. Zhu, M.H. Engelhard, B. Xiao, and S. Feng, et al. 2019. "A Comparative Study of Pomegranate Sb@C Yolk-Shell Microspheres as Li and Na-Ion Battery Anodes." Nanoscale 11, no. 1:348-355. PNNL-SA-139714. doi:10.1039/c8nr08461k 

  • Wu H., Y. Xu, X. Ren, B. Liu, M.H. Engelhard, M.S. Ding, and P.Z. El-Khoury, et al. 2019. "Polymer-in-"quasi-ionic liquid" electrolytes for high-voltage lithium metal batteries." Advanced Energy Materials 9, no. 41:1902108. PNNL-SA-144443. doi:10.1002/aenm.201902108