电催化加氢脱氯稳健催化剂的合理设计和结构调控：从纳米结构到单原子,ACS Catalysis

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电催化加氢脱氯稳健催化剂的合理设计和结构调控：从纳米结构到单原子
ACS Catalysis ( IF 11.3 ) Pub Date : 2023-07-08 , DOI: 10.1021/acscatal.3c01830
Junxi Li ₁ , Chao Zhang ₂ , Yichuan Li ₁ , Yuan Pan ₁ , Yunqi Liu ₁

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氯化有机污染物作为一类易生物累积、生物毒性强的持久性污染物，存在于环境中，对生态安全构成重大威胁。电催化加氢脱氯（EHDC）技术具有效率高、操作简单、反应条件温和、无二次污染等优点，在含氯污染物处理方面具有良好的应用前景。钯基催化剂被认为是迄今为止最有效的电还原脱氯催化剂，但钯的储量稀缺，而且价格往往高得令人望而却步。开发用于EHDC的高原子利用率的贵金属催化剂和非贵金属催化剂已成为研究热点，但相关综述仍缺乏。在本文中，综述了近年来EHDC催化剂的研究进展，详细讨论了催化剂微观结构调控对EHDC性能的影响。总结并提出了不同尺度（从纳米结构到单原子）催化剂EHDC性能提升的调控策略，包括电子效应、支撑效应、尺寸效应、配位效应等调控机制，为原子尺度高效EHDC催化剂的开发提供指导。在本综述的最后，还讨论了 EHDC 催化剂的应用前景和挑战。总结并提出了不同尺度（从纳米结构到单原子）催化剂EHDC性能提升的调控策略，包括电子效应、支撑效应、尺寸效应、配位效应等调控机制，为原子尺度高效EHDC催化剂的开发提供指导。在本综述的最后，还讨论了 EHDC 催化剂的应用前景和挑战。总结并提出了不同尺度（从纳米结构到单原子）催化剂EHDC性能提升的调控策略，包括电子效应、支撑效应、尺寸效应、配位效应等调控机制，为原子尺度高效EHDC催化剂的开发提供指导。在本综述的最后，还讨论了 EHDC 催化剂的应用前景和挑战。

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Rational Design and Structural Regulation of Robust Catalysts for Electrocatalytic Hydrodechlorination: From Nanostructures to Single Atoms

As a class of persistent pollutants that are easily bioaccumulatable and highly biotoxic, chlorinated organic pollutants exist in the environment and pose a substantial threat to ecological safety. The electrocatalytic hydrodechlorination (EHDC) technology shows the advantages of high efficiency, simple operation, mild reaction conditions, and no secondary pollution and thus promises a good application prospect in the treatment of chlorine-containing pollutants. Pd-based catalysts are considered the most efficient catalysts for electroreductive dechlorination thus far, yet the reserves of Pd are scarce, and the price is often prohibitively high. The development of noble metal catalysts with high atom utilization and non-noble metal catalysts for EHDC has become a hot research topic, but relevant reviews are still lacking. In this paper, the research progress on EHDC catalysts during recent years is reviewed and the influence of catalyst microstructure regulation on the EHDC performance is discussed in detail. The regulation strategies including the regulation mechanisms of electronic effect, support effect, size effect, and coordination effect for enhancing the EHDC performance of catalysts at different scales (from nanostructures to single atoms) are summarized and proposed, which could provide guidance for the development of efficient EHDC catalysts from the atomic scale. At the end of this review, the application prospects and challenges for EHDC catalysts are also discussed.

更新日期：2023-07-08

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