title: Complete and Rapid Conversion of Hydrazine Monohydrate to Hydrogen over Supported Ni-Pt Nanoparticles on Mesoporous Ceria for Chemical Hydrogen Storage.
abstract: The development of active, selective, and robust catalysts is a key issue in promoting the practical application of hydrazine monohydrate (N2 H4 ⋅H2 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 H2 generation from an alkaline solution of N2 H4 ⋅H2 O at moderate temperatures. For example, the Ni60 Pt40 /CeO2 catalyst enabled complete decomposition of N2 H4 ⋅H2 O 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 N2 H4 ⋅H2 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/CeO2 catalyst.
authors.affiliation: Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (P.R. China).
authors.forename: Yuan-Yuan
authors.initials: YY
authors.lastname: Jiang
authors.affiliation: 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). mshbdai@scut.edu.cn.
authors.forename: Hong-Bin
authors.initials: HB
authors.lastname: Dai
authors.affiliation: Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (P.R. China).
authors.forename: Yu-Jie
authors.initials: YJ
authors.lastname: Zhong
authors.affiliation: Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016 (P.R. China).
authors.forename: De-Min
authors.initials: DM
authors.lastname: Chen
authors.affiliation: 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). mspwang@scut.edu.cn.
authors.forename: Ping
authors.initials: P
authors.lastname: Wang
keywords: hydrogen; mesoporous materials; nanoparticles; self-assembly; supported catalysts