First-row transition metal oxide oxygen evolution electrocatalysts: regulation strategies and mechanistic understandings,Sustainable Energy & Fuels

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First-row transition metal oxide oxygen evolution electrocatalysts: regulation strategies and mechanistic understandings
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020-08-24 , DOI: 10.1039/d0se01087a
Lihua Zhang _{1,

2,

3,

4,

5} , Qun Fan _{1,

2,

3,

4,

5} , Kai Li _{1,

2,

3,

4,

5} , Sheng Zhang _{1,

2,

3,

4,

5} , Xinbin Ma _{1,

2,

3,

4,

5}

Affiliation

Hydrogen has become an important part of the renewable energy mix needed in order to ensure a sustainable future. Water electrolyzers could use renewable energies such as solar and wind to produce hydrogen. However, the sluggish oxygen evolution reaction (OER) at the anode is the bottleneck in the whole water splitting process. Noble metal Ir and Ru oxides are benchmark OER catalysts with high performance. However, the scarcity and high price limit their large-scale applications. Currently, abundant transition metal oxides have been intensively investigated as potential OER catalysts. In this article, we provide a general comparison between different types of first-row transition metal oxides, including Mn, Fe, Co, and Ni for OER in alkaline, acidic and neutral electrolytes, and the regulation strategies for enhancing their OER performance. Recent in situ spectroscopic studies are also introduced to understand the OER reaction mechanism based on the structure–activity relationship. Finally, this review ends with challenges and perspectives for the development of future OER electrocatalysts.

中文翻译：

第一行过渡金属氧化物氧逸出电催化剂：调节策略和机理理解

氢已成为确保可持续未来所需的可再生能源结构的重要组成部分。水电解厂可以使用可再生能源，例如太阳能和风能，以产生氢气。然而，阳极处缓慢的氧气析出反应（OER）是整个水分解过程的瓶颈。贵金属Ir和Ru氧化物是高性能的基准OER催化剂。但是，稀缺性和高价格限制了它们的大规模应用。当前，已经大量研究了丰富的过渡金属氧化物作为潜在的OER催化剂。在本文中，我们提供了碱性，酸性和中性电解液中用于OER的不同类型的第一行过渡金属氧化物（包括Mn，Fe，Co和Ni）之间的一般比较，以及用于增强其OER性能的调节策略。最近还引入了原位光谱研究以了解基于结构-活性关系的OER反应机理。最后，本综述以未来OER电催化剂的开发面临的挑战和前景作为结尾。

更新日期：2020-09-08

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