Coordination Engineering of Single‐Atom Catalysts for the Oxygen Reduction Reaction: A Review,Advanced Energy Materials

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Coordination Engineering of Single‐Atom Catalysts for the Oxygen Reduction Reaction: A Review
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2020-11-30 , DOI: 10.1002/aenm.202002473
Jincheng Zhang ₁ , Hongbin Yang ₂ , Bin Liu ₁

Affiliation

Future renewable energy supplies and a sustainable environment rely on many important catalytic processes. Single‐atom catalysts (SACs) are attractive because of their maximum atom utilization efficiency, tunable electronic structures, and outstanding catalytic performance. Of particular note, transition‐metal SACs exhibit excellent catalytic activity and selectivity for the oxygen reduction reaction (ORR)—an important half reaction in fuel cells and metal–air batteries as well as for portable hydrogen peroxide (H₂O₂) production. Although considerable efforts have been made on the synthesis of SACs for ORR, the regulation of the coordination environments of SACs and thus the electronic structures still pose a big challenge. In this review, strategies for manipulating the coordination environments of SACs are classified into three categories, including regulation of the center metal atoms, manipulation of the surrounding environment connecting to the center metal atom, and modification of the geometric configuration of the support. Finally, some issues regarding the future development of SACs for ORR are raised and possible solutions are proposed.

中文翻译：

单原子催化氧还原反应的配位工程研究进展

未来的可再生能源供应和可持续环境依赖于许多重要的催化过程。单原子催化剂（SAC）具有最大的原子利用效率，可调节的电子结构和出色的催化性能，因此具有吸引力。特别值得注意的是，过渡金属SAC对氧还原反应（ORR）表现出优异的催化活性和选择性，这是燃料电池和金属空气电池以及便携式过氧化氢（H ₂ O ₂）生产。尽管已经为合成用于ORR的SAC做出了很大的努力，但是对SAC的配位环境以及电子结构的调节仍然提出了很大的挑战。在这篇综述中，操纵SAC的配位环境的策略分为三类，包括对中心金属原子的调节，对连接到中心金属原子的周围环境的操纵以及对载体几何构型的修改。最后，提出了有关ORR SAC未来发展的一些问题，并提出了可能的解决方案。

更新日期：2021-01-20

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