储能科学与技术 ›› 2021, Vol. 10 ›› Issue (6): 1906-1917.doi: 10.19799/j.cnki.2095-4239.2021.0441

• 氢能与燃料电池专刊 • 上一篇    下一篇

过渡金属基催化剂用于氧析出反应的研究进展

宋乃建1(), 郭明媛1, 南皓雄2(), 喻嘉3()   

  1. 1.渭南师范学院化学与材料学院,陕西 渭南 714099
    2.海南大学理学院,海南 海口 570228
    3.上海大学材料基因组工程研究院,上海 200444
  • 收稿日期:2021-07-31 修回日期:2021-09-10 出版日期:2021-11-05 发布日期:2021-11-03
  • 作者简介:宋乃建(1979—),男,讲师,研究方向为绿色化工,E-mail:359091547@qq.com|南皓雄,讲师,研究方向为燃料电池及电催化,E-mail:nanhaoxiong@163.com|喻嘉,副研究员,研究方向为储能电极材料理性设计与多尺度有序结构合成,E-mail:yujia@shu.edu.cn
  • 基金资助:
    陕西省高校科协青年人才托举计划项目(20200611);陕西省科技厅自然科学基础研究计划项目(2021JQ-826);渭南师范学院人才项目(20RC+9),国家自然科学基金项目(21905056)

Recent advances in transition metal-based catalysts for oxygen evolution reaction

Naijian SONG1(), Mingyuan GUO1, Haoxiong NAN2(), Jia YU3()   

  1. 1.School of Chemistry and Materials, Weinan Normal University, Weinan 714099, Shaanxi, China
    2.School of Science, Hainan University, Haikou 570228, Hainan, China
    3.Materials Genome Institute, Shanghai University, Shanghai 200444, China
  • Received:2021-07-31 Revised:2021-09-10 Online:2021-11-05 Published:2021-11-03

摘要:

由于动力学缓慢,在能源转换和储存过程中,特别是在电解水过程,氧析出反应(OER)是一个关键的限制性反应。目前该领域所面临的主要挑战是探索不含贵金属的催化剂,以促进OER反应过程。由于独特的化学、物理特性和低廉的使用成本,过渡金属基化合物在水的电化学分解过程中的应用得到了广泛关注。本文综述了尖晶石、钙钛矿和层状双金属氢氧化物(LDH)三种过渡金属化合物作为OER电催化剂的最新研究现状和进展,重点介绍了提高OER催化活性和催化剂稳定性的策略以及相应催化剂的催化性能和效果。综合当前文献的研究结果可以发现,OER催化活性的提高主要有两种措施:一是在催化剂中引入更多的催化活性位点,并且保证这些活性位点尽可能暴露在催化剂的表面;二是优化催化剂的导电性能。通过控制尺寸、形态、晶格缺陷、氧空位、相态及化学组成,或者与导电材料相复合,可以在一定程度上满足上述两种要求。最后,对OER电催化剂的未来发展方向进行简要讨论。

关键词: 尖晶石, 钙钛矿, 层状金属氢氧化物, 氧析出反应

Abstract:

Oxygen evolution reaction (OER) is a limiting process in energy conversion and storage due to its sluggish kinetics, especially in water electrolysis. The critical challenge in this area is to explore alternative precious-metal-free catalysts to promote the OER process. Transition metal-based compounds have attracted much attention in electrochemical water splitting because of their unique chemical and physical properties, as well as low cost. In this review, we summarize the recent research status and progress of spinel, perovskite and layered double hydroxides as electrocatalysts for OER, which have been extensively studied in recent years. The researcher strategies developed to promote electrocatalytic activities and stability are described, along with the electrochemical properties of theses developed catalysts. Based on related references, we observed that there are generally two strategies to improve OER catalyst activities: (1) introduce more active sites and expose them to the catalyst surface and (2) optimize the conductivity of OER catalysts. These requirements can be met to some extent by the controlling size, morphology, intrinsic and lattice defects, oxygen vacancies, phase and composition of OER catalysts, and by the incorporation of conducting materials in composites. Finally, the future development of OER electrocatalysts is briefly discussed.

Key words: spinel, perovskite, layered double, oxygen evolution reaction

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