Catalytically active gauze-supported skeletal nickel prepared from Ni-Zn alloys electrodeposited from an acetamide-dimethyl sulfone eutectic mixture

Kam Loon Fow, Murugan Ganapathi, Ivo Stassen, Koen Binnemans, Jan Fransaer, Dirk E. De Vos

Research output: Journal PublicationArticlepeer-review

3 Citations (Scopus)

Abstract

Nickel-zinc alloys were electrodeposited on copper gauze from an acetamide-dimethyl sulfone eutectic mixture containing nickel chloride and zinc chloride. The as-deposited nickel-zinc alloys have compact microstructures with very small crystallites (approximately 3 nm) and smooth surfaces. The nickel content could be varied between 20 and 90 wt.% by controlling the temperature of the electrolyte. After alkaline leaching, a gauze-supported zinc based Raney nickel catalyst was obtained. The catalyst was benchmarked against commercial aluminum based Raney nickel in liquid phase hydrogenation of acetophenone. The gauze-supported zinc based skeletal nickel was more active and selective as compared to the commercial aluminum based Raney nickel. In addition, the gauze-supported zinc based Raney nickel catalyst could be reused without any hydrogen pretreatment. The activity of the reused catalyst decreased by 20%, but it retained its excellent selectivity.

Original languageEnglish
Pages (from-to)191-197
Number of pages7
JournalCatalysis Today
Volume246
DOIs
Publication statusPublished - 15 May 2015

Keywords

  • Electrodeposition
  • Eutectic melt
  • Gauze-supported catalyst
  • Hydrogenation of ketone
  • Non-aqueous electrolytes
  • Raney nickel

ASJC Scopus subject areas

  • Catalysis
  • Chemistry (all)

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