Single atom catalysts for heterogeneous catalytic ozonation

IF 8 2区工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering Pub Date : 2023-09-01 DOI:10.1016/j.coche.2023.100945

Yizhen Cheng , Zhonglin Chen , Shaobin Wang , Xiaoguang Duan

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引用次数: 3

Abstract

Single atom catalysts (SACs) have received soaring interest in environmental applications due to their ultrahigh atomic efficiency and drastically reduced metal loading. In this review, we summarized the preliminary efforts in applying SACs for heterogeneous catalytic ozonation (HCO). Mechanistic analyses revealed a creditable consensus that highly dispersed active single atoms can accelerate the decomposition of ozone (O₃) into surface-adsorbed *O and free O₂. However, the activity of SAC toward O₃ decomposition varies, depending on the central metal species and coordination environment. In this review, we discussed the synthesis and characterization of SACs, emphasizing their application and catalytic regimes in HCO. Also, limitations and prospects of SAC-based HCO were proposed to shed light on future studies.

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非均相催化臭氧化的单原子催化剂

单原子催化剂(SACs)由于其超高的原子效率和大幅减少的金属负载，在环境应用方面受到了越来越多的关注。本文就SACs在非均相催化臭氧化(HCO)中的应用进行了综述。机理分析揭示了一个可信的共识，即高度分散的活性单原子可以加速臭氧(O3)分解成表面吸附的*O和游离O2。然而，SAC对O3分解的活性因中心金属种类和配位环境的不同而不同。本文综述了SACs的合成和表征，重点介绍了SACs在HCO中的应用和催化机理。并对sac基HCO的局限性和前景进行了展望，以期为今后的研究提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Current Opinion in Chemical Engineering BIOTECHNOLOGY & APPLIED MICROBIOLOGYENGINE-ENGINEERING, CHEMICAL

CiteScore

12.80

自引率

3.00%

发文量

114

期刊介绍： Current Opinion in Chemical Engineering is devoted to bringing forth short and focused review articles written by experts on current advances in different areas of chemical engineering. Only invited review articles will be published. The goals of each review article in Current Opinion in Chemical Engineering are: 1. To acquaint the reader/researcher with the most important recent papers in the given topic. 2. To provide the reader with the views/opinions of the expert in each topic. The reviews are short (about 2500 words or 5-10 printed pages with figures) and serve as an invaluable source of information for researchers, teachers, professionals and students. The reviews also aim to stimulate exchange of ideas among experts. Themed sections: Each review will focus on particular aspects of one of the following themed sections of chemical engineering: 1. Nanotechnology 2. Energy and environmental engineering 3. Biotechnology and bioprocess engineering 4. Biological engineering (covering tissue engineering, regenerative medicine, drug delivery) 5. Separation engineering (covering membrane technologies, adsorbents, desalination, distillation etc.) 6. Materials engineering (covering biomaterials, inorganic especially ceramic materials, nanostructured materials). 7. Process systems engineering 8. Reaction engineering and catalysis.