Ni3Al Intermetallics catalyst for hydrogen generation from methanol

Ya Xu, Dong Hyun Chun, Satoshi Kameoka, Masahiko Demura, Kyosuke Kishida, An pang Tsai, Toshiyuki Hirano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Hydrogen is attracting much attention as a clean and efficient energy source. In Ni-Al system there are four stable intermetallic compounds, NiAl3, Ni2Al3, NiAl, and Ni3Al. Among them a mixture of NiAl3 and Ni2Al3 (Ni-50 wt% Al) is used as a precursor alloy for Raney nickel catalysts: the Raney nickel catalysts are produced from the precursor alloy by leaching aluminum in a concentrated NaOH solution. For NiAl and Ni3Al, very limited studies have been carried out on the catalytic properties. The catalytic activity and stability of single-phase Ni3Al (Ni-24 atom % Al) powder for hydrogen production from methanol at 513-633 K was studied. The alkali-leached Ni3Al powders showed a high catalytic activity and stability for the methanol decomposition. The rate of hydrogen production increased rapidly with increasing reaction temperature. The Ni3Al catalysts suppressed the formation of methane and waster gas shift reaction, i.e., they showed higher selectivity for methanol decomposition than nickel catalysts. This is an abstract of a paper presented at the AIChE Annual Meeting and Fall Showcase (Cincinnati, OH 10/30/2005-11/4/2005).

Original languageEnglish
Title of host publication05AIChE
Subtitle of host publication2005 AIChE Annual Meeting and Fall Showcase, Conference Proceedings
PublisherAmerican Institute of Chemical Engineers
ISBN (Print)0816909962, 9780816909964
Publication statusPublished - 2005 Jan 1
Externally publishedYes
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: 2005 Oct 302005 Nov 4

Publication series

NameAIChE Annual Meeting Conference Proceedings
Volume2005

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period05/10/3005/11/4

ASJC Scopus subject areas

  • Energy(all)

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