Noble metal-supported CeO2 catalysts for hydrogen production via ethanol steam reforming
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ChemCatChem
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This study investigates the synthesis, characterization, and catalytic
performance of noble metal-supported cerium oxide
(M/CeO2, where M = Au, Pd, Pt, Rh, Ru) catalysts for ethanol
steam reforming, a promising method for sustainable hydrogen
production. A urea-assisted deposition approach was employed
to deposit noble metal nanoparticles uniformly on CeO2 without
stabilizers, preserving the support’s crystallinity and enhancing
reducibility through strong metal-support interactions. Catalytic
tests at 550 °C over 24 h revealed significant differences in activity
and the products distribution based on the metal used.
Rh/CeO2 demonstrated the highest performance, achieving complete
ethanol conversion and 37.75% hydrogen production,
attributed to its efficient C─C and C─H bond cleavage. Pt/CeO2
and Ru/CeO2 also displayed high activity and stability, whereas
Pd/CeO2 and Au/CeO2 primarily produced acetaldehyde due to
preferential C─H bond scission. Post-reaction analysis confirmed
minimal carbon deposition across all catalysts, with Rh/CeO2
exhibiting the highest resistance to coke formation. These findings
emphasize the importance of noble metal choice and
metal-support interactions in optimizing catalyst performance.
Rh, Pt, and Ru emerged as the most promising candidates for
efficient hydrogen production. This study develops advanced
catalysts optimized for renewable energy use for hydrogen
production via ethanol steam reforming.
Como referenciar
SILVA, FELIPE A. e; MARQUES, EDUARDO do E.S.; FONSECA, FABIO C.; GURLO, ALEKSANDER; RODRIGUES, THENNER S. Noble metal-supported CeO2 catalysts for hydrogen production via ethanol steam reforming. ChemCatChem, v. 17, n. 13, p. 1-17, 2025. DOI: 10.1002/cctc.202500595. Disponível em: https://repositorio.ipen.br/handle/123456789/49356. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.