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Synthesis of a Fe–Ni Alloy on a Ceria Support as a Noble‐Metal‐Free Catalyst for Hydrogen Production from Chemical Hydrogen Storage Materials
Author(s) -
Mori Kohsuke,
Taga Tomohisa,
Yamashita Hiromi
Publication year - 2015
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201500101
Subject(s) - catalysis , dehydrogenation , ammonia borane , bimetallic strip , materials science , noble metal , hydrogen storage , inorganic chemistry , hydrogen production , hydrogen , nanoparticle , chemical engineering , nickel , alloy , metal , chemistry , metallurgy , nanotechnology , organic chemistry , engineering
Bimetallic FeNi nanoparticles supported on CeO 2 was proven to be effective for hydrogen production from ammonia–borane (NH 3 –BH 3 ) as a noble‐metal‐free catalyst. Impregnation of iron and nickel ions with the CeO 2 surface followed by in situ reduction with NaBH 4 prior to catalytic dehydrogenation of AB produced highly dispersed and partially oxidized amorphous FeNi NPs stabilized by strong interaction with the CeO 2 support by NiOCe and FeOCe bonding. Investigation of the influence of the Fe/Ni ratio revealed a volcano‐shaped relationship with a maximum at Fe/Ni=1. FeNi/CeO 2 was further applicable to dehydrogenation from dimethylamine–borane ((CH 3 ) 2 NHBH 3 ). The advantages of this catalytic system, such as the facile preparation method, free of noble metals, and high recyclability, with easy recovery from the reaction mixture by application of an external magnet, are particularly desirable for a hydrogen vector in terms of potential industrial application in fuel cells.