Complete and Rapid Conversion of Hydrazine Monohydrate to Hydrogen over Supported Ni–Pt Nanoparticles on Mesoporous Ceria for Chemical Hydrogen Storage |
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| Authors: | Yuan‐Yuan Jiang Prof Hong‐Bin Dai Yu‐Jie Zhong Prof De‐Min Chen Prof Ping Wang |
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| Institution: | 1. Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (P.R. China);2. School of Materials Science and Engineering, Key Laboratory of Advanced Energy Storage Materials, of Guangdong Province, South China University of Technology, Guangzhou 510641 (P.R. China) |
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| Abstract: | The development of active, selective, and robust catalysts is a key issue in promoting the practical application of hydrazine monohydrate (N2H4 ? H2O) 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 H2 generation from an alkaline solution of N2H4 ? H2O at moderate temperatures. For example, the Ni60Pt40/CeO2 catalyst enabled complete decomposition of N2H4 ? H2O to generate H2 at a rate of 293 h?1 at 30 °C in the presence of 2 M NaOH, which compares favorably with the reported N2H4 ? H2O 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/CeO2 catalyst. |
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| Keywords: | hydrogen mesoporous materials nanoparticles self‐assembly supported catalysts |
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