Premium
Temperature‐Induced Enhancement of Catalytic Performance in Selective Hydrogen Generation from Hydrous Hydrazine with Ni‐Based Nanocatalysts for Chemical Hydrogen Storage
Author(s) -
Singh Sanjay Kumar,
Lu ZhangHui,
Xu Qiang
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100083
Subject(s) - nanomaterial based catalyst , chemistry , hydrazine (antidepressant) , bimetallic strip , catalysis , hydrogen storage , inorganic chemistry , hydrogen , aqueous solution , decomposition , selectivity , ammonia borane , nanoparticle , hydrogen production , chemical engineering , organic chemistry , chromatography , engineering
We demonstrate here that Ni nanoparticles, which are inactive for the decomposition of hydrous hydrazine at room temperature, can exhibit drastically enhanced catalytic performance with an increase in reaction temperature to 323 K. At this reaction temperature, complete conversion of hydrous hydrazine with 100 % H 2 selectivity can be achieved by alloying Ni and Pt with a Pt content as low as 1 mol‐%. This significant temperature effect coupled with the uniform alloy composition of Ni–Pt nanocatalysts results in the observed enhanced catalytic performance of the Ni–Pt nanocatalyst for hydrogen generation from hydrous hydrazine. In addition, evidence suggests that the Ni‐based bimetallic catalysts can be used to release five equivalents of H 2 and one equivalent of N 2 from an aqueous solution of hydrazine borane N 2 H 4 BH 3 .