The influence of the support composition on the physicochemical and catalytic properties of Cu catalysts supported on Zirconia-Alumina for methanol steam reforming

• Tipo: Artigo em Revista Científica Internacional
• Data: 2020-11-15

Autores

Mateos-Pedrero, C. (Autor) Outra; Azenha, C. (Autor) Outra; D.A., P.T. (Autor) Outra; J. M. Sousa (Autor) FEUP; Adélio Mendes (Autor) FEUP

Revista

Título: Applied Catalysis B: Environmental

Vol. 277

ISSN: 0926-3373

Editora: Elsevier

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 8 Citações

BASE - Bielefeld Academic Search Engine

ScienceDirect (Elsevier)

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

Projetos Associados

LEPABE - Financiamento Plurianual 2020-2023 da Unidade de I&D LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

LEPABE-2-ECO-INNOVATION - LEPABE-2-ECO-INNOVATION

Outras Informações

ID Authenticus: P-00S-C1G

DOI: 10.1016/j.apcatb.2020.119243

Abstract (EN): ZrAl materials with different compositions have been synthesized by the hydrothermal method and used as supports of Cu catalysts for hydrogen production from methanol steam reforming (MSR). The effect of the support composition, Zr/Al ratio, on the physicochemical and catalytic properties of CuZrAl catalysts was studied. The characterization results show that there is an optimal support composition (Zr/Al ratio of 0.4), allowing to achieve the highest methanol conversion due to enhanced dispersion and reducibility of copper. Zr-rich catalysts displayed low MSR activity, which is likely due to the segregation and crystallization of zirconia, resulting in the formation of large copper particles with lowered dispersion and reducibility. The catalyst with the optimal Zr/Al ratio shows the highest methanol conversion, enhanced selectivity and good long term stability, rendering this catalyst a promising material for the production of high purity H-2 from MSR.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9