Atomic site electrocatalysts for water splitting, oxygen reduction and selective oxidation,Chemical Society Reviews

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Atomic site electrocatalysts for water splitting, oxygen reduction and selective oxidation
Chemical Society Reviews ( IF 40.4 ) Pub Date : 2020-03-05 , DOI: 10.1039/c9cs00869a
Di Zhao _{1,

2,

3,

4} , Zewen Zhuang _{1,

2,

3,

4} , Xing Cao _{1,

2,

3,

4} , Chao Zhang _{1,

2,

3,

4} , Qing Peng _{1,

2,

3,

4} , Chen Chen _{1,

2,

3,

4} , Yadong Li _{1,

2,

3,

4}

Affiliation

Electrocatalysis plays a central role in clean energy conversion, enabling a number of processes for future sustainable technologies. Atomic site electrocatalysts (ASCs), including single-atomic site catalysts (SASCs) and diatomic site catalysis (DASCs), are being pursued as economical alternatives to noble-metal-based catalysts for these reactions by virtue of their exceptionally high atom utilization efficiencies, well-defined active sites and high selectivities. In this review, we start from a systematic review on the fabrication routes of ASCs followed by an overview of some new and effective characterization methods to precisely probe the atomic structure. Then we give a comprehensive summary on the current advances in some typical clean energy reactions: water splitting, including hydrogen evolution reaction (HER) and oxygen evolution reaction (OER); oxygen reduction reaction (ORR), including selective 4e⁻ – ORR toward H₂O/OH⁻ and 2e⁻ – ORR toward H₂O₂/HO₂⁻; selective electrooxidation of formic acid, methanol and ethanol (FAOR, MOR and EOR). At the end of this paper, we present a brief conclusion, and discuss the challenges and opportunities on the further development of more selective, active, stable and less expensive ASCs.

中文翻译：

用于水分解，氧还原和选择性氧化的原子部位电催化剂

电催化在清洁能源转换中起着核心作用，为未来的可持续技术实现了许多过程。原子位置电催化剂（ASC），包括单原子位置催化剂（SASC）和双原子位置催化（DASC），由于其超高的原子利用效率，正在被用作这些反应的贵金属催化剂的经济替代品，定义明确的活性位点和高选择性。在这篇综述中，我们从对ASC的制造路线的系统综述开始，然后概述了一些精确探测原子结构的新型有效表征方法。然后，我们对一些典型的清洁能源反应的最新进展进行了全面总结：水分解，包括析氢反应（HER）和析氧反应（OER）；氧还原反应（ORR），包括选择性4e^- - ORR朝向ħ₂ O / OH^-和2e^- - ORR朝向ħ₂ ö₂ / HO₂^- ; 甲酸，甲醇和乙醇的选择性电氧化（FAOR，MOR和EOR）。在本文的最后，我们给出了一个简短的结论，并讨论了进一步开发更具选择性，主动性，稳定性和价格便宜的ASC所面临的挑战和机遇。

更新日期：2020-04-24

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