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Superior Catalytic Effects of Transition Metal Boride Nanoparticles on the Reversible Hydrogen Storage Properties of Li-Mg-B-H System

Authors

  • Xiulin Fan,

    1. Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, P. R. China
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  • Xuezhang Xiao,

    1. Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, P. R. China
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  • Lixin Chen,

    Corresponding author
    1. Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, P. R. China
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  • Jie Shao,

    1. Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, P. R. China
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  • Liuting Zhang,

    1. Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, P. R. China
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  • Shouquan Li,

    1. Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, P. R. China
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  • Hongwei Ge,

    1. Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, P. R. China
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  • Qidong Wang

    1. Key Laboratory of Advanced Materials and Application for Batteries of Zhejiang Province, Department of Materials Science and Engineering, Zhejiang University, Hangzhou, P. R. China
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Abstract

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By directly doping transition metal boride (NbB2, ZrB2, and CeB6) nanoparticles with size of less than 10 nm into 2LiBH4/MgH2 composites, a significant catalytic enhancement is achieved. As the representative catalyzed system, the nanoNbB2-doped composite can release ca. 9.0 wt% H2 in 15 min and reabsorb ca. 9.0 wt% H2 in 5 min, which show more than 30 and 20 times faster than undoped system.

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