PNNL

Chinmayee Subban is a chemist in the Coastal Sciences Division of the Pacific Northwest National Laboratory (PNNL), with a joint appointment at University of Washington as affiliate assistant professor. She is interested in developing novel materials and methods to aid sustainable development. Her current research is focused on harvesting critical elements from non-traditional sources and on advancing the science and technology around marine carbon dioxide removal.

• Materials science
• Resource recovery
• Marine carbon dioxide removal
• Sustainability

• PhD in chemistry and chemical biology, Cornell University, 2012
• BS in chemistry and biology, Linfield College, 2007

2025

• P. Butreddy; S.T. Mergelsberg; J.N. Jocz; D. Li; V. Prabhakaran; A.J. Ritchhart; C.V. Subban; J. Kellar; S.R. Beeler; S.W. Keenan, E. Nakouzi. Selective dissolution and re-precipitation by pH cycling enables recovery of manganese from surface nodules. RSC Sustainability 2025, 3 (2), 983-994.
• I.R. Campbell; Z. Dong; P. Grandgeorge; A.M. Jimenez; E.R. Rhodes; E. Lee; S. Edmundson; C.V. Subban; K.G. Sprenger; E. Roumeli. The role of biomolecular building blocks on the cohesion of biomatter plastics. Matter 2025, 8 (3).

2024

• A.J. Robinson; E.A. Ryan; Q. Wang; D. Greene; C.V. Subban. Pulse Electrodeposition for Carbonate-Rich Deposits from Seawater. Sustainability 2024, 16 (23), 10776.
• T. Khangaonkar; B.R. Carter; L. Premathilake; S.K. Yun; W. Ni; M.M. Stoll; N.D. Ward; L.G. Hemery; C. Torres Sanchez; C.V. Subban; et al. Mixing and dilution controls on marine CO₂ removal using alkalinity enhancement. Environmental Research Letters 2024, 19 (10), 104039.
• C. Myers; H. Goldstein; M. Villante; C.V. Subban; T. Schaef, J.N. Cross and E. Nienhuis. Top-down life cycle assessment protocols for all mineralization-based CO₂ removal methods. Proceedings of the 17th Greenhouse Gas Control Technologies Conference (GHGT-17), 2024.
• P. Grandgeorge; I.R. Campbell; H. Nguyen; R. Brain; M. Parker; S. Edmundson; D. Rose; K. Homolke; C.V. Subban; E. Roumeli. Adhesion in thermomechanically processed seaweed-lignocellulosic composite materials. MRS Bulletin 2024, 49 (8), 787-801.
• C.F. Hibbeln, P. Marsh, C.R. Myers, P.J. Valdez, S.J. Edmundson, C.V. Subban, Maximizing Marine Carbon Removal by Coupling Electrochemical and Biological Methods. Environmental Science & Technology Letters 2024.
• Q. Wang, C.V. Subban, Flow-driven enhancement of neodymium and dysprosium separation from aqueous solutions. RSC Sustainability 2024, 2 (5), 1400-1407.
• Q. Wang, J. Chun, ; C.V. Subban, Influence of Concentration Gradients on Electroconvection at a Cation-Exchange Membrane Surface. Langmuir 2024, 40 (3), 1613-1622.
• H.S. Lim, C.V. Subban, D.T. Nguyen, T.S. Nasoetion, T. Liu, K.S. Han, B.M. Sivakumar, T. Lemmon, S. Kim, Z. Yu, et al. Room Temperature Electrorefining of Rare Earth Metals from End-of-Use Nd–Fe–B Magnets. ACS Sustainable Resource Management 2024, 1 (2), 269-277
• P. Agbo, K. An, S.E. Baker, J. Cross, L. Kreibe,W. Li, C. Myers, S. H. Pang, H.T. Schaef, J. A. Schaidle, C. D. Scown, E.D. Sherwin, C.V. Subban, M. Villante, and G.Yadav. Technological Innovation Opportunities for CO₂ Removal. 2024.
• J.N. Cross; S.H. Geerlofs; C.V. Subban; N.D. Ward; C. Meinig; M.R. Pinza,; C.L. Davidson. Towards Marine Carbon Dioxide Removal (mCDR) Centers of Excellence; United States, 2024. DOI:10.2172/2426023

2023

• C.V. Subban; J.N. Cross; S.H. Geerlofs; C. Meinig. Marine carbon dioxide removal (mCDR) test site needs: A joint PNNL-PMEL workshop report; PNNL-35092; United States, 2023. DOI:10.2172/2345755.
• Lim H., C. Venkata Subban, D. Nguyen, T.S. Nasoetion, T. Liu, K. Han, and B. Modachur Sivakumar, et al. 2023. Room Temperature Electrorefining of Rare Earth Metals from End-of-use Nd-Fe-B Magnets. PNNL-34948. Richland, WA: Pacific Northwest National Laboratory. Room Temperature Electrorefining of Rare Earth Metals from End-of-use Nd-Fe-B Magnets.

2022

• Jung H., C. Venkata Subban, J. Mctigue, J.J. Martinez, A.E. Copping, J. Osorio, and J. Liu, et al. 2022. "Extracting Energy from Ocean Thermal and Salinity Gradients to Power Unmanned Underwater Vehicles: State of the Art, Current Limitations, and Future Outlook." Renewable & Sustainable Energy Reviews 160. PNNL-SA-163771. doi:10.1016/j.rser.2022.112283.
• Myers C.R., and C. Venkata Subban. 2022. "Ocean Deacidification Technologies For Marine Aquaculture." Journal of Marine Science and Engineering 10, no. 4:Art. No. 523. PNNL-SA-170723. doi:10.3390/jmse10040523.
• Myers C.R., C.F. Hibbeln, S.J. Edmundson, and C. Venkata Subban. 2022. Optimizing biological carbon uptake by regulating carbonate-bicarbonate equilibrium. PNNL-33407. Richland, WA: Pacific Northwest National Laboratory. Optimizing biological carbon uptake by regulating carbonate-bicarbonate equilibrium.
• Wang Q., E. Nakouzi, E.A. Ryan, and C. Venkata Subban. 2022. "Flow-Assisted Selective Mineral Extraction from Seawater." Environmental Science & Technology Letters 9, no. 7:645-649. PNNL-SA-170825. doi:10.1021/acs.estlett.2c00229.