September 19, 2024
Journal Article

Toward Rational Design of Nickel Catalysts for Thermocatalytic Decomposition of Methane for Carbon Dioxide-Free Hydrogen and Value-Added Carbon Co-Product: A Review

Abstract

Thermocatalytic decomposition (TCD) of methane provides opportunities for hydrogen production with no emission of carbon dioxide. However high value carbon products need to be produced for economic deployment of TCD. In this review, we re-evaluate literature data in catalyst development, and propose fundamental correlations between catalyst characteristics and catalytic stability, properties of carbon products. In the first part, growth mechanisms for carbon nanotubes (CNT) using state-of-the art chemical vapor deposition (CVD) are reviewed to catalog the effects of intrinsic catalyst characteristics, interaction between catalysts and carbon sources, interaction between metal particles and supports, and metal particle sizes on carbon growth. In the second part, representative developments in mono-, bi- and tri-metallic Ni catalysts are highlighted. We present kinetic analysis of reactions catalyzed by mono-metallic Ni catalysts, which generates a correlation between metal particle size and catalyst stability.

Published: September 19, 2024

Citation

Weber R.S., M. Xu, J.A. Lopez-Ruiz, C. Jiang, J. Hu, and R.A. Dagle. 2024. Toward Rational Design of Nickel Catalysts for Thermocatalytic Decomposition of Methane for Carbon Dioxide-Free Hydrogen and Value-Added Carbon Co-Product: A Review. ChemCatChem 16, no. 15:Art. No. e202301629. PNNL-SA-193126. doi:10.1002/cctc.202301629