Journal of Inorganic Materials ›› 2020, Vol. 35 ›› Issue (7): 809-816.DOI: 10.15541/jim20190502

Special Issue: 能源材料论文精选(四):光催化与电催化(2020) 【虚拟专辑】氢能材料(2020~2021)

• RESEARCH PAPER • Previous Articles     Next Articles

RuFe Nanoparticles Modified Sheet-like BiVO4 : High-efficient Synergistic Catalyst for Ammonia Borane Hydrolytic Dehydrogenation

ZHANG Yiqing,ZHANG Shujuan,WAN Zhengrui,MO Han,WANG Niangui(),ZHOU Liqun()   

  1. Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
  • Received:2019-09-30 Revised:2019-12-28 Published:2020-07-20 Online:2020-03-03
  • Supported by:
    Hubei Provincial Natural Science Foundation(2010CDB04701);Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules of China(KLSAOFM1913)

Abstract:

Developing highly efficient and low-cost catalysts is crucial in the field of clean energy economy, in which ammonia borane (AB) has attracted great attention due to its high hydrogen production through the catalytic hydrolysis. In this work, BiVO4 nanosheet was firstly synthesized by a facile reflux method. And then bimetallic RuFe@BiVO4 catalysts with different molar ratios of Ru/Fe were prepared via in situ impregnation-reduction techniques and their catalytic activities were also tested in the hydrogen generation from aqueous solution of AB at room temperature. Compared with the releasing hydrogen rates of catalysts of BiVO4, Ru@BiVO4, Fe@BiVO4, RuFe NPs and RuFe@BiVO4, respectively, Ru1Fe0.1@BiVO4 exhibits the highest catalytic activity for the dehydrogenation of AB among all catalysts, the activation energy (Ea) and turnover frequency (TOF) are 43.7 kJ·mol-1 and 205.4 molH2·molRu·min-1, respectively. The addition of non-noble Fe can significantly enhance the catalytic activity of Ru counterparts, which is closely related to the strong electronic effect between Ru and Fe NPs, bi-functional effect generated between the RuFe NPs and the support BiVO4.

Key words: BiVO4, RuFe nanoparticles, synergistic catalysis, ammonia borane, releasing hydrogen

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