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Liu Q, Yang P, Tan W, Yu H, Ji J, Wu C, Cai Y, Xie S, Liu F, Hong S, Ma K, Gao F, Dong L. Fabricating Robust Pt Clusters on Sn-Doped CeO 2 for CO Oxidation: A Deep Insight into Support Engineering and Surface Structural Evolution. Chemistry 2023; 29:e202203432. [PMID: 36567623 DOI: 10.1002/chem.202203432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/20/2022] [Accepted: 12/25/2022] [Indexed: 12/27/2022]
Abstract
The size effect on nanoparticles, which affects the catalysis performance in a significant way, is crucial. The tuning of oxygen vacancies on metal-oxide support can help reduce the size of the particles in active clusters of Pt, thus improving catalysis performance of the supported catalyst. Herein, Ce-Sn solid solutions (CSO) with abundant oxygen vacancies have been synthesized. Activated by simple CO reduction after loading Pt species, the catalytic CO oxidation performance of Pt/CSO was significantly better than that of Pt/CeO2 . The reasons for the elevated activity were further explored regarding ionic Pt single sites being transformed into active Pt clusters after CO reduction. Due to more exposed oxygen vacancies, much smaller Pt clusters were created on CSO (ca. 1.2 nm) than on CeO2 (ca. 1.8 nm). Consequently, more exposed active Pt clusters significantly improved the ability to activate oxygen and directly translated to the higher catalytic oxidation performance of activated Pt/CSO catalysts in vehicle emission control applications.
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Affiliation(s)
- Qinglong Liu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Peng Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Wei Tan
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Haowei Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jiawei Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Cong Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yandi Cai
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Shaohua Xie
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL 32816, United States
| | - Song Hong
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100027, China
| | - Kaili Ma
- Analysis and Testing Center, Southeast University, Nanjing, 211189, China
| | - Fei Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Lin Dong
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment; Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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2
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Ikim MI, Gerasimov GN, Gromov VF, Ilegbusi OJ, Trakhtenberg LI. Synthesis, Structural and Sensor Properties of Nanosized Mixed Oxides Based on In 2O 3 Particles. Int J Mol Sci 2023; 24:ijms24021570. [PMID: 36675093 PMCID: PMC9863344 DOI: 10.3390/ijms24021570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/14/2023] Open
Abstract
The paper considers the relationship between the structure and properties of nanostructured conductometric sensors based on binary mixtures of semiconductor oxides designed to detect reducing gases in the environment. The sensor effect in such systems is determined by the chemisorption of molecules on the surface of catalytically active particles and the transfer of chemisorbed products to electron-rich nanoparticles, where these products react with the analyzed gas. In this regard, the role is evaluated of the method of synthesizing the composites, the catalytic activity of metal oxides (CeO2, SnO2, ZnO), and the type of conductivity of metal oxides (Co3O4, ZrO2) in the sensor process. The effect of oxygen vacancies present in the composites on the performance characteristics is also considered. Particular attention is paid to the influence of the synthesis procedure for preparing sensitive layers based on CeO2-In2O3 on the structure of the resulting composites, as well as their conductive and sensor properties.
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Affiliation(s)
- Mariya I. Ikim
- N.N. Semenov Federal Research Center for Chemical Physics of RAS, Moscow 119991, Russia
| | - Genrikh N. Gerasimov
- N.N. Semenov Federal Research Center for Chemical Physics of RAS, Moscow 119991, Russia
| | - Vladimir F. Gromov
- N.N. Semenov Federal Research Center for Chemical Physics of RAS, Moscow 119991, Russia
| | - Olusegun J. Ilegbusi
- Biomedical and Process Modeling Lab, University of Central Florida, Orlando, FL 32816, USA
| | - Leonid I. Trakhtenberg
- N.N. Semenov Federal Research Center for Chemical Physics of RAS, Moscow 119991, Russia
- Moscow Institute of Physics and Technology, State University, Dolgoprudny 141701, Russia
- Chemical Faculty, Lomonosov Moscow State University, Moscow 119991, Russia
- Correspondence:
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3
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Li J, He S, Wang T, Shen Z, Chen X, Zhou F. A catalyst powder-based spraying approach for rapid and efficient removal of fire-generated CO:From laboratory to pilot scale. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125607. [PMID: 33725549 DOI: 10.1016/j.jhazmat.2021.125607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/22/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
In confined space fires, the large amount of CO generated by incomplete combustion of carbon-based materials poses a serious threat to the trapped people. However, the efficient method of removing CO in such disasters remains a great challenge. Herein, a spraying catalyst powder (SCP) approach is proposed for CO removal by oxidizing CO to harmless CO2. Cu/Mn catalyst, synthesized by using ethylene glycol as solvent, was employed in this study. The influence of catalyst concentration, temperature, CO2 concentration and initial CO concentration on CO removal performance of SCP approach was investigated. With 500 g/m3 catalyst, 25,000 ppm CO could be reduced to 2550 ppm within 1 min and completely removed in less than 2.83 min at 200 °C. The feasibility of SCP approach in practical application was validated by the remarkable CO removal performance for charcoal combustion in confined tunnel. SCP approach could effectively reduce the CO concentration, which would reach up to 12,659 ppm in the absence of SCP approach, to less than 1500 ppm within 30 min. The experiment results suggest that SCP technology can effectively remove the fire-generated CO and is promising for practical application in crowded occupancies, such as underground space and aircraft compartment.
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Affiliation(s)
- Jia Li
- Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Sheng He
- Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Tao Wang
- Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Zhiyuan Shen
- Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Xiaoyu Chen
- Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology, Jiangsu 221116, China; Key Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Ministry of Education, Xuzhou, Jiangsu 221116, China.
| | - Fubao Zhou
- Jiangsu Key Laboratory of Fire Safety in Urban Underground Space, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China; State Key Laboratory of Coal Resources and Safe Mining China University of Mining and Technology, Jiangsu 221116, China; Key Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Ministry of Education, Xuzhou, Jiangsu 221116, China.
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4
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Guo Y, Liang J, Liu Y, Liu Y, Xu X, Fang X, Zhong W, Wang X. Identifying Surface Active Sites of SnO 2: Roles of Surface O 2–, O 22– Anions and Acidic Species Played for Toluene Deep Oxidation. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03687] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yao Guo
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Jinbao Liang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Yang Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Yaqian Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xianglan Xu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xiuzhong Fang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Wei Zhong
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Xiang Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
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5
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Kardash TY, Derevyannikova EA, Slavinskaya EM, Stadnichenko AI, Maltsev VA, Zaikovskii AV, Novopashin SA, Boronin AI, Neyman KM. Pt/CeO 2 and Pt/CeSnO x Catalysts for Low-Temperature CO Oxidation Prepared by Plasma-Arc Technique. Front Chem 2019; 7:114. [PMID: 30931295 PMCID: PMC6424011 DOI: 10.3389/fchem.2019.00114] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 02/13/2019] [Indexed: 11/13/2022] Open
Abstract
We applied a method of plasma arc synthesis to study effects of modification of the fluorite phase of ceria by tin ions. By sputtering active components (Pt, Ce, Sn) together with carbon from a graphite electrode in a helium ambient we prepared samples of complex highly defective composite PtCeC and PtCeSnC oxide particles stabilized in a matrix of carbon. Subsequent high-temperature annealing of the samples in oxygen removes the carbon matrix and causes the formation of active catalysts Pt/CeOx and Pt/CeSnOx for CO oxidation. In the presence of Sn, X-Ray Diffraction (XRD) and High-Resolution Transmission Electron Microscopy (HRTEM) show formation of a mixed phase CeSnOx and stabilization of more dispersed species with a fluorite-type structure. These factors are essential for the observed high activity and thermic stability of the catalyst modified by Sn. X-Ray Photoelectron Spectroscopy (XPS) reveals the presence of both Pt2+ and Pt4+ ions in the catalyst Pt/CeOx, whereas only the state Pt2+ of platinum could be detected in the Sn-modified catalyst Pt/CeSnOx. Insertion of Sn ions into the Pt/CeOx lattice destabilizes/reduces Pt4+ cations in the Pt/CeSnOx catalyst and induces formation of strikingly high concentration (up to 50% at.) of lattice Ce3+ ions. Our DFT calculations corroborate destabilization of Pt4+ ions by incorporation of cationic Sn in Pt/CeOx. The presented results show that modification of the fluorite lattice of ceria by tin induces substantial amount of mobile reactive oxygen partly due to affecting geometric parameters of ceria by tin ions.
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Affiliation(s)
- Tatyana Y Kardash
- Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - Elizaveta A Derevyannikova
- Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Elena M Slavinskaya
- Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - Andrey I Stadnichenko
- Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - Vasiliy A Maltsev
- Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexey V Zaikovskii
- Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergey A Novopashin
- Kutateladze Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Andrei I Boronin
- Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Novosibirsk State University, Novosibirsk, Russia
| | - Konstantin M Neyman
- Departament de Ciència dels Materials i Química Física, Universitat de Barcelona, Barcelona, Spain.,Institut de Química Teòrica i Computacional, Universitat de Barcelona, Barcelona, Spain.,ICREA (Institució Catalana de Recerca i Estudis Avançats), Barcelona, Spain
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6
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Wang D, Zhang C, Xie Y, Pan Z, Xue X, Zhang R. A study on the catalytic oxidation of soot by Sn–Ce composite oxides: adsorbed oxygen and defect sites synergistically enhance catalytic activity. NEW J CHEM 2019. [DOI: 10.1039/c9nj04134f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two reaction paths in the presence of a Sn–Ce catalyst with H2O (path 1) and without H2O (path 2).
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Affiliation(s)
- Dengtai Wang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- Environmental Chemistry & Low Carbon Technologies Key Lab of Henan Province
| | - Changsen Zhang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- Environmental Chemistry & Low Carbon Technologies Key Lab of Henan Province
| | - Yunyun Xie
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- Environmental Chemistry & Low Carbon Technologies Key Lab of Henan Province
| | - Zeyou Pan
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- Environmental Chemistry & Low Carbon Technologies Key Lab of Henan Province
| | - Xiangfei Xue
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- Environmental Chemistry & Low Carbon Technologies Key Lab of Henan Province
| | - Ruiqin Zhang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou 450001
- China
- Environmental Chemistry & Low Carbon Technologies Key Lab of Henan Province
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7
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Zhang J, Liu Y, Sun Y, Peng H, Xu X, Fang X, Liu W, Liu J, Wang X. Tetragonal Rutile SnO2 Solid Solutions for NOx-SCR by NH3: Tailoring the Surface Mobile Oxygen and Acidic Sites by Lattice Doping. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02288] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jingyan Zhang
- College of Chemistry, Institute of Applied Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Yaqian Liu
- College of Chemistry, Institute of Applied Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Yue Sun
- College of Chemistry, Institute of Applied Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Honggen Peng
- College of Chemistry, Institute of Applied Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xianglan Xu
- College of Chemistry, Institute of Applied Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xiuzhong Fang
- College of Chemistry, Institute of Applied Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Wenming Liu
- College of Chemistry, Institute of Applied Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Jianjun Liu
- Jiangxi Baoan New Material Technology Corporation,
Ltd., Pingxiang, Jiangxi 337000, China
| | - Xiang Wang
- College of Chemistry, Institute of Applied Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
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8
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Gerasimov GN, Gromov VF, Belysheva TV, Ikim MI, Spiridonova EY, Grekhov MM, Shapochkina IV, Brynzar’ VI, Trakhtenberg LI. Investigating the sensor response of ceria-containing binary metal oxide nanocomposites. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2017. [DOI: 10.1134/s0036024417100120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Xu X, Liu F, Han X, Wu Y, Liu W, Zhang R, Zhang N, Wang X. Elucidating the promotional effects of niobia on SnO2 for CO oxidation: developing an XRD extrapolation method to measure the lattice capacity of solid solutions. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01870f] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using an XRD extrapolation method, the SnO2 lattice capacity for Nb2O5 is quantified. A Sn–Nb solid solution without excess Nb2O5 is promising for CO oxidation.
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Affiliation(s)
- Xianglan Xu
- Institute of Applied Chemistry
- College of Chemistry
- Nanchang University
- Nanchang
- PR China
| | - Fang Liu
- Institute of Applied Chemistry
- College of Chemistry
- Nanchang University
- Nanchang
- PR China
| | - Xue Han
- Institute of Applied Chemistry
- College of Chemistry
- Nanchang University
- Nanchang
- PR China
| | - Yuanyuan Wu
- Institute of Applied Chemistry
- College of Chemistry
- Nanchang University
- Nanchang
- PR China
| | - Wenming Liu
- Institute of Applied Chemistry
- College of Chemistry
- Nanchang University
- Nanchang
- PR China
| | - Rongbin Zhang
- Institute of Applied Chemistry
- College of Chemistry
- Nanchang University
- Nanchang
- PR China
| | - Ning Zhang
- Institute of Applied Chemistry
- College of Chemistry
- Nanchang University
- Nanchang
- PR China
| | - Xiang Wang
- Institute of Applied Chemistry
- College of Chemistry
- Nanchang University
- Nanchang
- PR China
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10
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Mao D, He F, Zhao P, Liu S. Enhancement of resistance to chlorine poisoning of Sn-modified MnCeLa catalysts for chlorobenzene oxidation at low temperature. RSC Adv 2015. [DOI: 10.1039/c4ra15059g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The Sn-modified MnCeLa catalysts show significantly higher resistance to chlorine poisoning than MnCeLa catalysts at different temperatures.
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Affiliation(s)
- Dou Mao
- Key Laboratory for Green Chemical Process of Ministry of Education
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
| | - Fei He
- Key Laboratory for Green Chemical Process of Ministry of Education
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
| | - Pei Zhao
- Key Laboratory for Green Chemical Process of Ministry of Education
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
| | - Shantang Liu
- Key Laboratory for Green Chemical Process of Ministry of Education
- School of Chemistry and Environmental Engineering
- Wuhan Institute of Technology
- Wuhan 430074
- China
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11
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Nematollahi B, Rezaei M, Nemati Lay E. Synthesis of Nanocrystalline CeO2with High Surface Area by the Taguchi Method and its Application in Methanation. Chem Eng Technol 2014. [DOI: 10.1002/ceat.201400092] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Sun Y, Lei F, Gao S, Pan B, Zhou J, Xie Y. Atomically thin tin dioxide sheets for efficient catalytic oxidation of carbon monoxide. Angew Chem Int Ed Engl 2013; 52:10569-72. [PMID: 23946214 DOI: 10.1002/anie.201305530] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Indexed: 11/07/2022]
Abstract
The thinner the better: SnO2 sheets that are five atomic layers thick are an efficient catalyst for the oxidation of CO. These sheets, which have 40% surface atom occupancy and are fabricated by a scalable ethylenediamine-assisted pathway, show remarkably improved catalytic performances compared to other SnO2 species, with the apparent activation energy lowered to 59.2 kJ mol(-1) and the full-conversion-temperature lowered to 250 °C.
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Affiliation(s)
- Yongfu Sun
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science & Technology of China, Hefei, Anhui 230026 (P.R. China)
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13
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Sun Y, Lei F, Gao S, Pan B, Zhou J, Xie Y. Atomically Thin Tin Dioxide Sheets for Efficient Catalytic Oxidation of Carbon Monoxide. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305530] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Xu X, Zhang R, Zeng X, Han X, Li Y, Liu Y, Wang X. Effects of La, Ce, and Y Oxides on SnO2Catalysts for CO and CH4Oxidation. ChemCatChem 2013. [DOI: 10.1002/cctc.201200760] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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KUANG L, HUANG P, SUN H, JIANG H, ZHANG M. Preparation and characteristics of nano-crystalline Cu-Ce-Zr-O composite oxides via a green route: supercritical anti-solvent process. J RARE EARTH 2013. [DOI: 10.1016/s1002-0721(12)60247-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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