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Shi Y, Kong F, Wan J, Zhou R. Synergistic Effect of ZSM-5 Zeolite in Pt–CeO 2–TiO 2/ZSM-5 Catalysts for Highly Efficient Catalytic Oxidation of VOCs. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c04421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- Yijun Shi
- Institute of Catalysis, Department of chemistry, Zhejiang University, Hangzhou 310028, P. R. China
| | - Fanzhe Kong
- Institute of Catalysis, Department of chemistry, Zhejiang University, Hangzhou 310028, P. R. China
| | - Jie Wan
- Energy Research Institute, Nanjing Institute of Technology, Nanjing 211167,P. R. China
| | - Renxian Zhou
- Institute of Catalysis, Department of chemistry, Zhejiang University, Hangzhou 310028, P. R. China
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Xing Y, Zhang H, Su W, Wang J, Zhang W, Wang Y, Ma M, Ma Z. Catalytic activity and stability of a Cr modified Co–Fe LDO catalyst in the simultaneous catalytic reduction of NOx and oxidation of o-DCB. NEW J CHEM 2022. [DOI: 10.1039/d1nj06230a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, a Co–Fe LDO catalyst was prepared by combining K2Cr2O7 and Cr(NO3)3 to modify the LDH precursor.
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Affiliation(s)
- Yi Xing
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, China
| | - Hui Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Sinosteel Maanshan Mine Research Institute Co. LTD, Anhui 243071, China
| | - Wei Su
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Key Laboratory of Knowledge Automation for Industrial Processes, Ministry of Education, Beijing 100083, China
| | - Jiaqing Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Wenbo Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yan Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Mengying Ma
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhiliang Ma
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
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Abstract
Due to its excellent oxygen storage capacity, ceria is a well-known oxidation catalyst. However, its performance in the oxidation of volatile organic compounds can be improved by the introduction of gold. Depending on the type of VOC to be oxidized, the surface of gold nanoparticles and the gold/ceria interface may contribute to enhanced activity and/or selectivity. Choosing a proper preparation method is crucial to obtain optimal gold particle size. Deposition–precipitation was found to be more suitable than coprecipitation or impregnation. For industrial applications, monolithic catalysts are needed to minimize the pressure drop in the reactor and reduce mass and heat transfer limitations. In addition to the approach used with powder catalysts, the method employed to introduce gold in/on the washcoat has to be considered.
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Physical and Chemical Synthesis of Au/CeO2 Nanoparticle Catalysts for Room Temperature CO Oxidation: A Comparative Study. Catalysts 2020. [DOI: 10.3390/catal10111351] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
In many heterogeneous catalytic reactions, such as low-temperature CO oxidation, the preparation conditions, and the role of the CeO2 support (oxygen vacancies and redox properties) in the dispersion and the chemical state of Au, are considered critical factors for obtaining gold nanoparticle catalysts with high catalytic performance. In this work, the physical and chemical preparation methods were compared, aiming at understanding how the preparation method influences the catalytic activity. The Au/CeO2 nanoparticle catalysts with 5% Au loading were prepared via the Physical Laser Vaporization Controlled Condensation method (LVCC), and the chemical Deposition-Precipitation method (DP) was used to investigate the effect of synthesis methods on the structure and the catalytic activity toward the CO oxidation. In this manuscript, we compare the activity of nanostructured Au/CeO2 catalysts. The structure and the redox properties of the catalysts were investigated by the XRD, SEM, TEM, TPR, and XPS. The catalytic activity for low-temperature CO oxidation was studied using a custom-built quartz tube flow reactor coupled with an infrared detector system at atmospheric pressure. The study reveals that the prepared CeO2-supported Au nanoparticles’ catalytic activity was highly dependent on the preparation methods. It showed that the sample prepared by the DP method exhibits higher catalytic efficiency toward CO oxidation when compared with the sample prepared by the LVCC method. The high catalytic activity could be attributed to the small particle size and shape, slightly higher Au concentration at the surface, surface-active Au species such as Au1+, along with the large interface between Au and CeO2. This study suggests that the stability, dispersion of Au nanoparticles on CeO2, and strong interaction between Au and CeO2 lead to strong oxidation ability even below room temperature. Considering the universal character of different physical and chemical methods for Au/CeO2 preparation, this study may also provide a base for supported Au-based catalysts for many oxidation reactions in energy and environmental applications.
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Wang J, Wang P, Zhao Q, Yu T, Du X, Hao X, Abudula A, Guan G. Highly dispersed Ag nanoparticles embedded on the surface of CeO2/CF nanowires derived from three-dimensional structured Cu foam for toluene catalytic oxidation. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhou X, Lai X, Lin T, Feng J, Hou Z, Chen Y. Preparation of a monolith MnOx–CeO2/La–Al2O3 catalyst and its properties for catalytic oxidation of toluene. NEW J CHEM 2018. [DOI: 10.1039/c8nj02908c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalyst DP-MnCe prepared by the deposition–precipitation method has the best catalytic activity for toluene oxidation.
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Affiliation(s)
- Xiaoying Zhou
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- China
| | - Xiaoxiao Lai
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- China
| | - Tao Lin
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- China
- Sichuan Provincial Vehicular Exhaust Gases Abatement Engineering Technology Center
- Chengdu 610064
| | - Jie Feng
- College of Chemical Engineering, Sichuan University
- Chengdu 610064
- China
| | - Zhongyan Hou
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- China
| | - Yaoqiang Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- China
- Sichuan Provincial Vehicular Exhaust Gases Abatement Engineering Technology Center
- Chengdu 610064
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Santra C, Auroux A, Chowdhury B. Bi doped CeO2 oxide supported gold nanoparticle catalysts for the aerobic oxidation of alcohols. RSC Adv 2016. [DOI: 10.1039/c6ra05216a] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Gold nanoparticles supported on Bi–CeO2 with four different bismuth loadings (2 to 8 mol%) were prepared to determine the role of oxide vacancies in doped ceria in the benzyl alcohol oxidation reaction.
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Affiliation(s)
- Chiranjit Santra
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad
- India
| | - Aline Auroux
- Institut de Recherchessur la Catalyse et l'Environnement de Lyon
- Université Lyon1
- France
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Identification of by-products issued from the catalytic oxidation of toluene by chemical and biological methods. CR CHIM 2015. [DOI: 10.1016/j.crci.2015.09.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mandal S, Santra C, Bando KK, James OO, Maity S, Mehta D, Chowdhury B. Aerobic oxidation of benzyl alcohol over mesoporous Mn-doped ceria supported Au nanoparticle catalyst. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.05.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ilieva L, Petrova P, Tabakova T, Zanella R, Abrashev M, Sobczak J, Lisowski W, Kaszkur Z, Andreeva D. Relationship between structural properties and activity in complete benzene oxidation over Au/CeO2–CoOx catalysts. Catal Today 2012. [DOI: 10.1016/j.cattod.2012.03.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Gold catalysts on ceria doped with MeOx (Me = Fe, Mn, Co and Sn) for complete benzene oxidation: effect of composition and structure of the mixed supports. REACTION KINETICS MECHANISMS AND CATALYSIS 2011. [DOI: 10.1007/s11144-011-0368-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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