催化学报 ›› 2017, Vol. 38 ›› Issue (6): 1021-1027.DOI: 10.1016/S1872-2067(17)62811-0

• 论文 • 上一篇    下一篇

层状水滑石结构包覆钴硼合金的电化学产氧性能

冷雪a, 吴光栩a, 苏并坚c, 张凌云c, Ian R. Gentleb, 王大伟a,b   

  1. a. 昆士兰大学化学与分子生命科学系, 布里斯班4072, 澳大利亚;
    b. 新南威尔士大学化学工程系, 悉尼2052, 澳大利亚;
    c. 国立同步辐射研究中心研究部, 台湾新竹300, 中国
  • 收稿日期:2017-02-08 修回日期:2017-03-04 出版日期:2017-06-18 发布日期:2017-06-08
  • 通讯作者: 王大伟
  • 基金资助:

    澳大利亚研究理事会(DP110100550)

Hydrotalcite-wrapped Co-B alloy with enhanced oxygen evolution activity

Xue Lenga, Kuang-Hsu Wua, Bing-Jian Suc, Ling-Yun Jangc, Ian R. Gentleb, Da-Wei Wanga,b   

  1. a. School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, Australia;
    b. School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia;
    c. Research Division, National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan, China
  • Received:2017-02-08 Revised:2017-03-04 Online:2017-06-18 Published:2017-06-08
  • Supported by:

    This work was supported by the Australian Research Council Discovery Project (DP110100550)

摘要:

电解水制氧是一种非常有吸引力的转化储存间歇式能源的技术. 本文着重研究了非晶态钴硼合金的电解水产氧性能. 非晶态钴硼合金可以通过硼氢化钠直接还原钴盐来获取,并表现出较高的电化学活性. 对钴硼合金的弱氧化,产生了类水滑石结构的钴氢氧化物,可进一步提高该类催化剂的整体催化活性,达到接近商业催化剂水平.

关键词: 非晶态合金, 产氧反应, 电催化剂

Abstract:

Water oxidation is one of the most attractive techniques for intermittent renewable energy conversion and storage. The oxygen evolution electrocatalytic performance of an amorphous Co-B alloy and its derivatives were studied. These materials were chemically synthesized by reducing a Co salt with NaBH4. The amorphous Co-B alloy showed good electrocatalytic activity in oxygen evolution but its stability was poor. A hydrotalcite-wrapped Co-B alloy was synthesized by mild oxidation. The electrocatalytic activity of this material in the oxygen evolution reaction was better than that of a commercially available Ir/C catalyst.

Key words: Amorphous alloy, Oxygen evolution reaction, Electrocatalyst