基于电催化析氧反应的非贵金属催化剂研究进展

Research progress of non-noble metal catalysts based on electrocatalytic oxygen evolution reaction

在全球变暖和能源危机的背景下,能源问题已成为全球各国战略安全的重要组成部分。氢能作为可持续的新型可再生清洁能源,对缓解全球性能源短缺具有重要意义。在众多制氢候选方案中,电解水制备氢气被认为是最可靠、最可行的途径之一。但在电解过程中,反应动力学极为迟缓的阳极析氧反应(Oxygen evolution reaction,OER)严重制约着整体反应效率。因此,开发成本相对低廉、催化剂性能优异、耐久性好的高效OER电催化剂,从而提高电解水制氢工艺技术的能源转换效果受到了广泛关注。本文首先简要阐述了析氧反应的反应机制及其性能的评价参数,接着对非贵金属催化剂的研究进行分类讨论,并列举了提高催化性能的策略和方法,最后对设计新型催化剂进行展望。

In the context of global warming and energy crisis, energy issues have become an important part of the strategic security of countries around the world. As a sustainable new renewable clean energy, hydrogen energy is of great significance to alleviate the global energy shortage. Among many hydrogen production candidate schemes,electrolysis of water to produce hydrogen is considered to be one of the most reliable and feasible ways. However, in the electrolysis process, the anodic oxygen evolution reaction(OER) with extremely slow reaction kinetics seriously restricts the overall reaction efficiency. Therefore, the development of high-efficiency OER electrocatalyst with relatively low cost, excellent catalyst performance and good durability, so as to improve the energy conversion effect of electrolytic water hydrogen production technology, has attracted widespread attention. This paper first briefly expounds the reaction mechanism of oxygen evolution reaction and the evaluation parameters of its performance, then discusses the research of non-noble metal catalysts, lists the strategies and methods to improve the catalytic performance, and finally prospects the design of new catalysts.