Low-dimensional materials for alkaline oxygen evolution electrocatalysis
Low-dimensional materials for alkaline oxygen evolution electrocatalysis
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DOI：
10.1016/j.mtchem.2018.10.011
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发表时间：
2019-03
影响因子：
7.3
通讯作者：
Xiangkai Kong;Zhenmeng Peng
中科院分区：
文献类型：
--
作者：
Xiangkai Kong;Zhenmeng Peng
对可再生能源和清洁能源技术的渴求培育了氢经济的概念，其中水电解制氢是不可或缺的组成部分。由于水的电解效率主要受阳极析氧反应(OER)的制约，人们在这一领域进行了大量的研究工作，以期对反应机理有更好的了解，并获得活性、耐用和低成本的电催化剂材料。在过去的几年里，取得了许多宝贵的发现，但同时也发现了一些问题。现在是总结已经取得的成就并确定需要克服的问题的好时机，这将有助于解读当前OER的研究现状，并在未来的研究中激发有洞察力的思考。在这篇综述文章中，我们简要介绍了目前对OER电催化机理的理解，以及催化剂描述参数与活性性质的关联。然后，我们总结了近年来OER催化剂材料的发展成果，并根据其形态维度进行了分类和讨论。展望了OER研究中存在的挑战和未来的发展方向。
The urge for renewable and clean energy technologies has cultivated the concept of hydrogen economy, in which water electrolysis for hydrogen production is one indispensable component. As the water electrolysis efficiency is primarily restricted by the anodic oxygen evolution reaction (OER), intensive research efforts have been put into this field to acquire good knowledge of the reaction mechanism and obtain active, durable, and cost-effective electrocatalyst materials. Many invaluable findings have been achieved in the past years, with some problems being found in the meantime. It is good timing to summarize what have been achieved and identify what to overcome, which would be helpful to unscramble current OER research status and stimulate insightful thoughts in future studies. In this review article, we briefly introduce current understanding of OER electrocatalysis mechanism and the use of catalyst descriptor parameters for correlation with the activity property. We then summarize recent achievements on development of OER catalyst materials, which are categorized and discussed based on their morphological dimension. Perspectives on the existing challenges and future directions in the OER research are also provided.