Iron Oxyhydroxide: Structure and Applications in Electrocatalytic Oxygen Evolution Reaction,Advanced Functional Materials

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Iron Oxyhydroxide: Structure and Applications in Electrocatalytic Oxygen Evolution Reaction
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-03-10 , DOI: 10.1002/adfm.202300557
Bingrong Guo ₁ , Haohao Huo ₁ , Qixuan Zhuang _{2,

3} , Xiaoqian Ren ₁ , Xinxin Wen ₁ , Bolun Yang ₁ , Xiaoxiao Huang ₂ , Qiaowan Chang ₄ , Siwei Li ₁

Affiliation

Oxygen evolution reaction (OER) is the anodic half-reaction for crucial energy devices, such as water electrolysis, metal–air battery, and electrochemical CO₂ reduction. Fe-based materials are recognized as one of the most promising electrocatalysts for OER because of its extremely low price and high activity. In particular, iron oxyhydroxide (FeOOH) is not only highly active toward OER, but also widely accepted as the true active species of Fe-based OER electrocatalysts for plenty of Fe-based materials are converted into FeOOH during OER test. Herein, the recent advances of FeOOH-based nano-structure and its application in OER are reviewed. The relationship between FeOOH structure and its catalytic performance, followed by the introduction of current strategies for enhancing the OER activity (i.e., crystalline phase engineering, element doping, and construction of hybrid materials) is mainly focused. Finally, a summary and perspective about the remaining challenges and future opportunities in this area and further the design of Fe-based OER electrocatalysts are provided.

中文翻译：

氢氧化铁：结构及其在电催化析氧反应中的应用

_{析氧反应 (OER) 是电解水、金属空气电池和电化学 CO 2}等关键能源设备的阳极半反应减少。铁基材料因其极低的价格和高活性而被公认为最有前途的OER电催化剂之一。特别是，羟基氧化铁 (FeOOH) 不仅对 OER 具有高活性，而且被广泛认为是铁基 OER 电催化剂的真正活性物质，因为在 OER 测试过程中大量铁基材料会转化为 FeOOH。本文综述了FeOOH基纳米结构的最新进展及其在OER中的应用。重点介绍了 FeOOH 结构与其催化性能之间的关系，然后介绍了当前提高 OER 活性的策略（即晶相工程、元素掺杂和杂化材料的构建）。最后，

更新日期：2023-03-10

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