Facile synthesis of ordered mesoporous Ni-Zr-Al catalysts with high hydrothermal stability for CO methanation

Qing Liu, Fangna Gu*, Xiaoyan Wang, Guojing Jin, Huifang Li, Feng Gao, Ziyi Zhong, Guangwen Xu, Fabing Su

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

For supported nickel catalysts used for catalytic reactions with presence of water vapor, it is a great challenge to let them have high resistance to sintering, coking as well as water vapor simultaneously. To address this problem, we synthesized a series of ternary ordered mesoporous Ni-Zr-Al metal oxide composites via an evaporation-induced self-assembly (EISA) and applied them to the CO methanation reaction. Compared to the ordered mesoporous Ni-Al catalyst, the ordered mesoporous Ni-Zr-Al catalyst showed much improved hydrothermal stability, because the incorporated Zr species could act as the supporter for the OMA framework, effectively preventing it from sintering-caused structural collapse and phase transition during the hydrothermal treatment; also, in a 120 h-lifetime test, the ordered mesoporous Ni-Zr-Al catalyst showed high anti-coking and anti-sintering properties, mainly because of the confinement effect of the mesopore channels as well as the incorporation of the zirconia promoter.

Original languageEnglish
Pages (from-to)84186-84194
Number of pages9
JournalRSC Advances
Volume5
Issue number102
DOIs
StatePublished - 2015
Externally publishedYes

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