A novel nano-Ni/SiO2 catalyst for hydrogen production from steam reforming of ethanol

Chunfei Wu, Paul T. Williams

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

Catalytic steam reforming of ethanol has been regarded as a promising way to produce hydrogen. However, catalytic deactivation is a key problem in the process. In this paper, a novel nano-Ni/SiO2 catalyst was prepared by a simple sol-gel method and compared to catalysts prepared by an impregnation method in relation to the steam reforming ethanol process. Good Ni dispersion and high BET surface areas (>700 m2 g1) were obtained for solgel catalysts, whereas only 1 m2 g1 surface area was obtained for the Ni/SiO2 impregnation catalyst. The results of catalytic steam reforming of ethanol showed that about twice of the hydrogen production was produced with the Ni/SiO2 catalyst prepared by solgel (around 0.2 g h1) compared with that prepared by impregnation (around 0.1 g h1). The analysis of the used catalysts showed that 10Ni/SiO2-B and 20Ni/SiO2-B presented the highest stability, while other catalysts were fragmented into small pieces after the reforming process, especially the catalysts prepared by impregnation. A novel catalyst has been produced that has been shown to be effective in the production of hydrogen from the steam reforming of ethanol.

Original languageEnglish
Pages (from-to)5993-5998
Number of pages6
JournalEnvironmental Science and Technology
Volume44
Issue number15
DOIs
Publication statusPublished - 01 Aug 2010
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

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