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Complete and Rapid Conversion of Hydrazine Monohydrate to Hydrogen over Supported Ni–Pt Nanoparticles on Mesoporous Ceria for Chemical Hydrogen Storage
Author(s) -
Jiang YuanYuan,
Dai HongBin,
Zhong YuJie,
Chen DeMin,
Wang Ping
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201502421
Subject(s) - bimetallic strip , catalysis , mesoporous material , hydrazine (antidepressant) , materials science , decomposition , nanoparticle , hydrogen production , hydrogen , inorganic chemistry , selectivity , hydrogen storage , chemical engineering , nickel , nuclear chemistry , chemistry , nanotechnology , organic chemistry , metallurgy , chromatography , engineering
The development of active, selective, and robust catalysts is a key issue in promoting the practical application of hydrazine monohydrate (N 2 H 4 ⋅ H 2 O) as a viable hydrogen carrier. Herein, the synthesis of a supported Ni–Pt bimetallic nanocatalyst on mesoporous ceria by a one‐pot evaporation‐induced self‐assembly method is reported. The catalyst exhibits exceptionally high catalytic activity, 100 % selectivity, and satisfactory stability in promoting H 2 generation from an alkaline solution of N 2 H 4 ⋅ H 2 O at moderate temperatures. For example, the Ni 60 Pt 40 /CeO 2 catalyst enabled complete decomposition of N 2 H 4 ⋅ H 2 O to generate H 2 at a rate of 293 h −1 at 30 °C in the presence of 2 M NaOH, which compares favorably with the reported N 2 H 4 ⋅ H 2 O decomposition catalysts. Phase/structural analysis by XRD, TEM, and Auger electron spectroscopy was conducted to gain insight into the excellent catalytic performance of the Ni–Pt/CeO 2 catalyst.