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Facile synthesis of graphene-supported Ni-CeOx nanocomposites as highly efficient catalysts for hydrolytic dehydrogenation of ammonia borane

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Abstract

Development of low-cost and high-performance catalysts for hydrogen generation via hydrolysis of ammonia borane (NH3BH3, AB) is a highly desirable pathway for future hydrogen utilization. In this work, Ni nanocatalysts doped with CeOx and supported on graphene (Ni-CeOx/graphene) were synthesized via a facile chemical reduction route and applied as robust catalysts for the hydrolysis of AB in aqueous solution at room temperature. The as-synthesized Ni-CeOx/graphene nanocomposites (NCs) exhibited excellent catalytic activity with a turnover frequency (TOF) as high as 68.2 min−1, which is 49-fold higher than that for a simple Ni nanoparticle catalyst and is among the highest values reported for non-noble metal catalysts in AB hydrolysis. The development of efficient and low-cost Ni-CeOx/graphene catalysts enhances the feasibility of using ammonia borane as a chemical hydrogen storage material, which may find application ina hydrogen fuel-cell based economy.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Nos. 21763012, 21463012, 21371162, 21673213, and 21521001), the Natural Science Foundation of Jiangxi Province of China (Nos. 20171ACB21021 and 2016BAB203087), and the National Research Fund for Fundamental Key Project (No. 2014CB931803).

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Authors and Affiliations

  1. Institute of Advanced Materials (IAM), College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, China

    Qilu Yao, Zhang-Hui Lu, Yuwen Yang & Xiangshu Chen

  2. Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China

    Yuzhen Chen & Hai-Long Jiang

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  1. Qilu Yao
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  2. Zhang-Hui Lu
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Correspondence to Zhang-Hui Lu, Xiangshu Chen or Hai-Long Jiang.

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Facile synthesis of graphene-supported Ni-CeOx nano-composites as highly efficient catalysts for hydrolytic dehydrogenation of ammonia borane

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Yao, Q., Lu, ZH., Yang, Y. et al. Facile synthesis of graphene-supported Ni-CeOx nanocomposites as highly efficient catalysts for hydrolytic dehydrogenation of ammonia borane. Nano Res. 11, 4412–4422 (2018). https://doi.org/10.1007/s12274-018-2031-y

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