Piezocatalysis and Piezo‐Photocatalysis: Catalysts Classification and Modification Strategy, Reaction Mechanism, and Practical Application,Advanced Functional Materials

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Piezocatalysis and Piezo‐Photocatalysis: Catalysts Classification and Modification Strategy, Reaction Mechanism, and Practical Application
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2020-09-09 , DOI: 10.1002/adfm.202005158
Shuchen Tu ₁ , Yuxi Guo ₂ , Yihe Zhang ₁ , Cheng Hu ₁ , Tierui Zhang ₃ , Tianyi Ma ₄ , Hongwei Huang ₁

Affiliation

Piezoelectric‐based catalysis that relies on the charge energy or separation efficiency of charge carriers has attracted significant attention. The piezo‐potential induced by strain or stress can induce a giant electric field, which has been demonstrated to be an effective means for charge energy shifting or transferring electrons and holes. In recent years, intense efforts have been made in this subject, and the research has mainly focussed on two aspects: i) Alteration of surface charge energy by piezo‐potential in piezocatalysis; ii) the separation of photo‐generated charge carriers and the catalytic activity enhancement of an integrated piezoelectric semiconductor or coupled system composed of piezoelectrics and semiconductors. Systematically summarizing the advances of the above two aspects is helpful in the context of deepening understanding of the relevant issues and developing new ideas for piezoelectric‐based catalysis. In this review, a comprehensive summary on piezocatalysis and piezo‐photocatalysis is provided. The charge transfer behaviors and catalytic mechanisms over a large variety of piezocatalysts and piezo‐photocatalysts are systematically analyzed. In addition, the types of mechanical energy, strategies for enhancing piezocatalysis, and the advanced applications of piezocatalysis and piezo‐photocatalysis are discussed. Finally, the promising development directions of piezocatalysis and piezo‐photocatalysis, such as materials, assembly forms, and applications in the future are proposed.

中文翻译：

压电催化和压电光催化：催化剂的分类和改性策略，反应机理及实际应用

依靠电荷能量或电荷载流子分离效率的基于压电的催化已经引起了广泛的关注。应变或应力引起的压电势会产生巨大的电场，这已被证明是电荷能量转移或转移电子和空穴的有效手段。近年来，在这个问题上已经做出了巨大的努力，并且研究主要集中在两个方面：i）在压电催化中通过压电势改变表面电荷能；ii）光生载流子的分离和集成压电半导体或由压电和半导体组成的耦合系统的催化活性增强。系统地总结以上两个方面的进展，对于加深对相关问题的理解和开发基于压电的催化的新思路很有帮助。在这篇综述中，提供了有关压电催化和压电光催化的全面总结。系统地分析了多种压电催化剂和压电光催化剂上的电荷转移行为和催化机理。此外，还讨论了机械能的类型，增强压电催化的策略以及压电催化和压电光催化的高级应用。最后，提出了压电催化和压电光催化的有前途的发展方向，例如材料，组装形式及其在未来的应用。

更新日期：2020-09-09

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