| 摘要: |
| 单原子催化剂不仅实现了对金属原子最大化利用，而且具有较高催化活性和选择性，还是理想的催化理论研究位点，近年来引起了广泛关注。环境催化在环境保护和污染修复中扮演着重要的角色。单原子催化剂在环境催化领域越来越受关注并有望应用于解决环境问题。单原子催化剂研究的重点和难点集中在单原子催化剂可控合成和催化位点分析表征。为推进单原子催化剂在环境催化领域中的应用，本文综述了单原子的主要制备方法和常规表征手段以及单原子催化剂在环境催化中应用的典型案例，并对单原子催化剂在环境催化中的应用将面临的挑战进行了展望。 |
| 关键词: 单原子催化剂 催化剂制备 催化剂表征 环境催化 |
| DOI：10.7515/JEE211009 |
| CSTR：32259.14.JEE211009 |
| 分类号: |
| 基金项目:国家重点研发计划（2017YFC0212200） |
| 英文基金项目:National Key Research and Development Program of China (2017YFC0212200) |
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| Research progress on single-atom catalysts in environmental catalysis |
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SHI Xianjin, HUANG Yu
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1. Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, China
2. University of Chinese Academy of Sciences, Beijing 100049, China
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| Abstract: |
| Background, aim, and scope Environmental catalysis plays an important role in environmental protection and pollution remediation. The application of single-atom catalysts in environmental catalysis has received increasing attention in recent years and is expected to solve many environmental problems. This review further aims to promote the application of single-atom catalysts in environmental catalysis. Materials and methods This article reviews the preparation methods and characterization methods of single-atom catalysts as well as typical cases of their application in environmental catalysis, and proposes the challenges faced by the application of single-atom catalysts in environmental catalysis. Results The technology of preparing and characterizing single-atom catalysts has been greatly developed and single-atom catalysts have obtained many applications in environmental catalysis. Discussion Single-atom catalysts not only achieves 100% atomic utilization, but also has unique catalytic performance. In recent years, great progress for single-atom catalysts has been made in preparation and characterization. The typical application cases of single-atom catalysis in NOx removal, VOCs oxidation decomposition, HCHO catalytic oxidation, CO oxidation, CO2 reduction and other water pollutants treatment are summarized to guide the development of single-atom catalysts for environmental catalysis. Furthermore, many challenges must be overcome for the application of single-atom catalysts in the environment. Conclusions Single-atom catalysts are extremely promising in environmental catalysis. Recommendations and perspectives The stability, metal-carrier interaction, applicability, and reaction mechanism of single-atom catalysts need to be further studied. |
| Key words: single-atom catalyst catalyst preparation catalyst characterization environmental catalysis |
