Ni supported Ce0.9Sm0.1O2-δ nanowires
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2019
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We reported herein the synthesis in high yields (> 97%) of Ce0.9Sm0.1O2-δ nanowires displaying well-defined
shape, size, and composition by a simple, fast, and low-cost two-step hydrothermal method. The Ce0.9Sm0.1O2-δ
nanowires synthesis was followed by the wet impregnation of Ni without the utilization of any stabilizing agent.
The Ni/Ce0.9Sm0.1O2-δ nanowires showed higher surface area, high concentration of oxygen vacancies at surface,
and finely dispersed Ni particles with significantly higher metallic surface area as compared with catalysts
prepared from commercial materials with similar compositions. Such unique and improved properties are reflected
on the catalytic performance of the Ni/Ce0.9Sm0.1O2-δ nanowires towards ethanol steam reforming. The
nanowires exhibited high yields for hydrogen production (∼60% of selectivity) and an exceptional stability with
no loss of activity after 192 h of reaction at 550 °C. The reported results provide insights and can inspire highyield
production of nanostructured catalysts displaying controlled and superior properties that enable practical
applications in heterogeneous catalysis.
Como referenciar
RODRIGUES, THENNER S.; MOURA, ARTHUR B.L. de; SILVA, FELIPE A. e; CANDIDO, EDUARDO G.; SILVA, ANDERSON G.M. da; OLIVEIRA, DANIELA C. de; QUIROZ, JHON; CAMARGO, PEDRO H.C.; BERGAMASCHI, VANDERLEI S.; FERREIRA, JOAO C.; LINARDI, MARCELO; FONSECA, FABIO C. Ni supported Ce0.9Sm0.1O2-δ nanowires: an efficient catalyst for ethanol steam reforming for hydrogen production. Fuel, v. 237, p. 1244-1253, 2019. DOI: 10.1016/j.fuel.2018.10.053. Disponível em: http://repositorio.ipen.br/handle/123456789/29256. Acesso em: 19 Mar 2025.
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.