Year: 2025
Type: article
Abstract: Ru/CeO 2 is a promising catalyst for H 2 production from ammonia decomposition due to the chemical properties of cerium dioxide and its particular interaction with Ru. In this work, Ru/CeO 2 catalysts prepared by mechanochemical synthesis are studied in comparison with conventional impregnated catalysts to investigate the relevant parameters for catalytic ammonia decomposition. Different Ru precursors are used on CeO 2 supports with varying surface areas, leading to a portfolio of catalysts with different characteristics such as CeO 2 crystallite size, surface basicity, defectiveness, metal‐support interaction, reducibility, spillover effect, metal particle dispersion and dimension, and actual Ru loading. The combination of catalytic results and different characterization techniques allows for a better understanding of the importance of the different factors that affect ammonia decomposition on Ru/CeO 2 catalysts, highlighting the role of particle size and Ru─H bond strength, whose relative relevance, in turn, is dependent on Ru precursor and synthesis method.
Source: ChemCatChem
Language: English
Subfield: Catalysis
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,500
Funder: European Commission
Awards: G1953887145, G2064215172, G6051190257
OpenAlex ID: W4410737799