Semi-quantitative determination of active sites in heterogeneous catalysts for photo/electrocatalysis
Catalysis is a widely applied process due to its predominant role in the chemical industry. Developing highly active exposed facets via defect engineering is considered to be the most promising strategy for optimizing the electrical and optical properties of catalysts to improve their catalytic acti...
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| Published in | Journal of materials chemistry. A, Materials for energy and sustainability Vol. 11; no. 6; pp. 2528 - 2543 |
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| Main Authors | , , , , , , , |
| Format | Journal Article |
| Language | English |
| Published |
Cambridge
Royal Society of Chemistry
08.02.2023
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| Subjects | |
| Online Access | Get full text |
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| Summary: | Catalysis is a widely applied process due to its predominant role in the chemical industry. Developing highly active exposed facets
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defect engineering is considered to be the most promising strategy for optimizing the electrical and optical properties of catalysts to improve their catalytic activity. Therefore, quantitative determination and calculation of the concentration of defect structures related to the highly exposed active crystal plane provided an efficient route for elucidating the catalytic active sites, and has attracted increasing attention. This work not only summarizes the existing defect characterization methods and the calculation methods of defect concentrations reported in recent years but also proposes a semi-quantitative method based on X-ray absorption fine structure (XAFS) and related methods for the determination and classification of active sites related to the active surface, which can be applied for the semi-quantitative calculation of defect concentrations in widely used metals and metal oxides. In addition, we emphasize the deficiencies of current defect concentration quantitative methods and look forward to the future development of defect characterization methods under working conditions. This review further reveals the structure-activity relationship between the content of active sites and the reaction performance.
This review focuses on exploring the defect active sites by determining the location and type and semi-quantitative calculation of defect concentrations by a variety of representational methods. |
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| Bibliography: | Chem. Soc. Rev. Dr Peng obtained his PhD degree in 2017 from the University of Oxford in Inorganic Chemistry, for which he served as an Oxford Clarendon scholar as top 3% graduate of 2013 admission year. He is currently an Assistant in Chemistry Department of City University of Hong Kong working on the understanding of surface chemistry for the design and synthesis of hetero(photo) catalysts. He has published over 50 SCI papers in the relevant field and secured fundings more than 4 million HKD as PI. J. Am. Soc. Chem. Chem. Eng. Sci. He was the "Highly Cited Researcher" selected by Clarivate since 2019-2022. IECR , . in situ Haoyuan Chi received his BS degree from China University of Petroleum in 2018 and obtained MS degrees from Beijing University of Chemical Technology in 2021 under the supervision of Prof. Yufei Zhao and Prof. Yufei Song. He is currently a PhD candidate under the guidance of Prof. Xinbin Ma at Tianjin University. His research focuses on preparation and application of layered double hydroxides. Angew. Chem. 2 Prof. Xue Duan, Academician of the Chinese Academy of Sciences, is the Executive Vice-Chair of the Academic Committee of the State Key Laboratory of Chemical Resource Engineering. Over the past 30 years has established a distinctive research program covering "Intercalation Assembly of Layered Materials and Resource Utilization". He has proposed many innovative concepts such as understanding intercalated structures based on assembly of octahedral units, coupling of catalytic reaction enthalpy and heat transfer ultrastable mineralization, high-efficiency low-cost green hydrogen, and dual carbon utilization in industrial carbonate hydrorefining. He has been one of the China's most highly cited scientists for many years. and Jing Ren is currently studying for her PhD in Beijing University of Chemical Technology under the supervision of Prof. Yufei Zhao at the State Key Laboratory of Chemical Resource Engineering. Her main research interest is photo/electrocatalytic water splitting coupling with organic synthesis. Adv. Mater. Prof. Yufei Zhao was employed by the State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology in 2018. His works focus on industrial-scale preparation and application of two-dimensional monolayer materials, efficient utilization of resources, and photocatalytic and electrocatalytic synthesis of high-value fine chemicals. He has published more than 100 SCI papers with more than 18 000 citations (H factor 64), and more than 50 SCI papers as the first/corresponding author, including Ling Tan was born in 1993 in Sichuan Province, China. She completed her Bachelor's degree in 2016 at Beijing University of Chemical Technology (BUCT) and obtained her PhD in 2021 at BUCT under the supervision of Prof. Yu-Fei Song. Her research interests mainly focus on the application of 2D nanomaterials in photoreduction of CO ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 |
| ISSN: | 2050-7488 2050-7496 |
| DOI: | 10.1039/d2ta09033c |