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Xu J, Bian Y, Tian W, Pan C, Wu CE, Xu L, Wu M, Chen M. The Structures and Compositions Design of the Hollow Micro-Nano-Structured Metal Oxides for Environmental Catalysis. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1190. [PMID: 39057867 PMCID: PMC11280307 DOI: 10.3390/nano14141190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 06/23/2024] [Accepted: 06/29/2024] [Indexed: 07/28/2024]
Abstract
In recent decades, with the rapid development of the inorganic synthesis and the increasing discharge of pollutants in the process of industrialization, hollow-structured metal oxides (HSMOs) have taken on a striking role in the field of environmental catalysis. This is all due to their unique structural characteristics compared to solid nanoparticles, such as high loading capacity, superior pore permeability, high specific surface area, abundant inner void space, and low density. Although the HSMOs with different morphologies have been reviewed and prospected in the aspect of synthesis strategies and potential applications, there has been no systematic review focusing on the structures and compositions design of HSMOs in the field of environmental catalysis so far. Therefore, this review will mainly focus on the component dependence and controllable structure of HSMOs in the catalytic elimination of different environmental pollutants, including the automobile and stationary source emissions, volatile organic compounds, greenhouse gases, ozone-depleting substances, and other potential pollutants. Moreover, we comprehensively reviewed the applications of the catalysts with hollow structure that are mainly composed of metal oxides such as CeO2, MnOx, CuOx, Co3O4, ZrO2, ZnO, Al3O4, In2O3, NiO, and Fe3O4 in automobile and stationary source emission control, volatile organic compounds emission control, and the conversion of greenhouse gases and ozone-depleting substances. The structure-activity relationship is also briefly discussed. Finally, further challenges and development trends of HSMO catalysts in environmental catalysis are also prospected.
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Affiliation(s)
- Jingxin Xu
- State Key Laboratory of Low-Carbon Smart Coal-Fired Power Generation and Ultra-Clean Emission, China Energy Science and Technology Research Institute Co., Ltd., Nanjing 210023, China; (J.X.); (W.T.)
| | - Yufang Bian
- Collaborative Innovation Centre of the Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;
| | - Wenxin Tian
- State Key Laboratory of Low-Carbon Smart Coal-Fired Power Generation and Ultra-Clean Emission, China Energy Science and Technology Research Institute Co., Ltd., Nanjing 210023, China; (J.X.); (W.T.)
| | - Chao Pan
- State Key Laboratory of Low-Carbon Smart Coal-Fired Power Generation and Ultra-Clean Emission, China Energy Science and Technology Research Institute Co., Ltd., Nanjing 210023, China; (J.X.); (W.T.)
| | - Cai-e Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China;
| | - Leilei Xu
- Collaborative Innovation Centre of the Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;
| | - Mei Wu
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian 223003, China
| | - Mindong Chen
- Collaborative Innovation Centre of the Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing 210044, China;
- School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230009, China
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2
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Selective catalytic reduction of NO with NH3 over core-shell Ce@W catalyst. J RARE EARTH 2023. [DOI: 10.1016/j.jre.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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3
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Experimental study on supported MnO2-based catalysts for NO oxidation. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02343-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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4
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Wang Q, Wang Y, Wei L, Wang K, Liu C, Ma D, Liu Q. Promotional mechanism of activity of CeEuMnO ternary oxide for low temperature SCR of NO. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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5
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Zhou H, Ou L. Adsorption of ammonia nitrogen in wastewater by tailing loaded manganese oxide material. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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6
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Liu X, Guo Y, He Q, Zhang C, Li Y. Core-shell MnCeO catalysts for NO oxidation and mild temperature diesel soot combustion. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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7
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Luo R, Zeng Y, Ju S, Feng S, Zhang F, Zhong Z, Xing W. Flowerlike FeO X–MnO X Amorphous Oxides Anchored on PTFE/PPS Membrane for Efficient Dust Filtration and Low-Temperature No Reduction. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rong Luo
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Yiqing Zeng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Shengui Ju
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Shasha Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Feng Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
- School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, People’s Republic of China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, People’s Republic of China
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8
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Yang W, Gong J, Wang X, Bao Z, Guo Y, Wu Z. A Review on the Impact of SO 2 on the Oxidation of NO, Hydrocarbons, and CO in Diesel Emission Control Catalysis. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03013] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Weiwei Yang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jian Gong
- Corporate Research and Technology, Cummins Inc., 1900 McKinley Avenue, Columbus, Indiana 47201, United States
| | - Xiang Wang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Zhenghong Bao
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Yanbing Guo
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Zili Wu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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9
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Oriented growth of δ-MnO2 nanosheets over core-shell Mn2O3@δ-MnO2 catalysts: An interface-engineered effects for enhanced low-temperature methanol oxidation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Xiao X, Wang J, Jia X, Ma C, Qiao W, Ling L. Low-Temperature Selective Catalytic Reduction of NO x with NH 3 over Mn-Ce Composites Synthesized by Polymer-Assisted Deposition. ACS OMEGA 2021; 6:12801-12812. [PMID: 34056431 PMCID: PMC8154236 DOI: 10.1021/acsomega.1c01123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 04/16/2021] [Indexed: 06/12/2023]
Abstract
The Mn x Ce y binary catalysts with a three-dimensional network structure were successfully prepared via a polymer-assisted deposition method using ethylenediaminetetraacetic acid and polyethyleneimine as complexing agents. The developed pore structure could facilitate the gas diffusion and accelerate the catalytic reaction for NH3 selective catalytic reduction (SCR). Moreover, the addition of Ce is beneficial for the exposure of active sites on the catalyst surface and increases the adsorption of the NH3 and NO species. Therefore, the Mn1Ce1 catalyst exhibits the best catalytic activity for NO x removal with a conversion rate of 97% at 180 °C, superior water resistance, and favorable stability. The SCR reaction over the Mn1Ce1 catalyst takes place through the E-R pathway, which is confirmed by the in situ diffuse reflectance Fourier transform analysis. This work explores a new strategy to fabricate multimetal catalysts and optimize the structure of catalysts.
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Affiliation(s)
- Xixi Xiao
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jitong Wang
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Key
Laboratory of Specially Functional Polymeric Materials and Related
Technology, East China University of Science
and Technology, Shanghai 200237, China
| | - Xianfeng Jia
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Department
of Chemistry, Tangshan Normal University, Tangshan 063000, China
| | - Cheng Ma
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wenming Qiao
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Key
Laboratory of Specially Functional Polymeric Materials and Related
Technology, East China University of Science
and Technology, Shanghai 200237, China
| | - Licheng Ling
- State
Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
- Key
Laboratory of Specially Functional Polymeric Materials and Related
Technology, East China University of Science
and Technology, Shanghai 200237, China
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11
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Liu Y, Gao F, Yi H, Yang C, Zhang R, Zhou Y, Tang X. Recent advances in selective catalytic oxidation of nitric oxide (NO-SCO) in emissions with excess oxygen: a review on catalysts and mechanisms. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:2549-2571. [PMID: 33105009 DOI: 10.1007/s11356-020-11253-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
Nitric oxides (NOx, which mainly include more than 90% NO) are one of the major air pollutants leading to a series of environmental problems, such as acid rain, haze, photochemical smog, etc. The selective catalytic oxidation of NO to NO2 (NO-SCO) is regarded as a key process for the development of selective catalytic reduction of NOx by ammonia (via fast selective catalytic reduction reaction) and also the simultaneous removal of multipollutant (pre-oxidation and post-absorption). Until now, scholars have developed various types of NO-SCO catalysts, dividing the main groups into noble metals (Pt, Pd, Ru, etc.), metal oxides (Mn-, Co-, Cr-, Ce-based, etc.), perovskite-type oxides (LaMnO3, LaCoO3, LaCeCoO3, etc.), carbon materials (activated carbon, carbon fiber, carbon nanotube, graphene, etc.), and zeolites (ion-exchanged ZSM-5, CHA, SAPO, MCM-41, etc.) in this review. This paper summarizes the recent progress of the above typical catalysts and mostly analyzes the catalytic performance for NO oxidation in terms of the H2O and/or SO2 resistances and also the influencing factors, and their reaction mechanisms are described in detail. Finally, this review points out the key problems and possible solutions of the current researches and presents the application prospects and future development directions of NO-SCO technology using the above typical catalysts.
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Affiliation(s)
- Yuanyuan Liu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Fengyu Gao
- 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, Beijing, 100083, China.
| | - Honghong Yi
- 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, Beijing, 100083, China
| | - Chen Yang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Runcao Zhang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yuansong Zhou
- 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, Beijing, 100083, China
| | - Xiaolong Tang
- 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, Beijing, 100083, China.
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12
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Chen X, Liu Q, Wu Q, Luo Z, Zhao W, Chen J, Li J. A hollow structure WO3@CeO2 catalyst for NH3-SCR of NOx. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2020.106252] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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13
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Partial substitution of magnesium in lanthanum manganite perovskite for nitric oxide oxidation: The effect of substitution sites. J Colloid Interface Sci 2020; 580:49-55. [DOI: 10.1016/j.jcis.2020.07.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 07/05/2020] [Accepted: 07/06/2020] [Indexed: 12/18/2022]
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14
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Zhang X, Yan Q, Wang Q. Design of practical Ce/CoMnAl-LDO catalyst for low-temperature NH3-SCR. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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15
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Cheng S, Shao J, Huang B, Guan J, Zhou L. Promotion effect of urchin-like MnO x @PrO x hollow core-shell structure catalysts for the low-temperature selective catalytic reduction of NO with NH 3. RSC Adv 2020; 10:13855-13865. [PMID: 35493013 PMCID: PMC9051569 DOI: 10.1039/d0ra00668h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 03/02/2020] [Indexed: 11/21/2022] Open
Abstract
A MnOx@PrOx catalyst with a hollow urchin-like core–shell structure was prepared using a sacrificial templating method and was used for the low-temperature selective catalytic reduction of NO with NH3. The structural properties of the catalyst were characterized by FE-SEM, TEM, XRD, BET, XPS, H2-TPR and NH3-TPD analyses, and the performance of the low-temperature NH3-SCR was also tested. The results show that the catalyst with a molar ratio of Pr/Mn = 0.3 exhibited the highest NO conversion at nearly 99% at 120 °C and NO conversion greater than 90% over the temperature range of 100–240 °C. Also, the MnOx@PrOx catalyst presented desirable SO2 and H2O resistance in 100 ppm SO2 and 10 vol% H2O at the space velocity of 40 000 h−1 and a testing time of 3 h test at 160 °C. The excellent low-temperature catalytic activity of the catalyst could ultimately be attributed to high concentrations of Mn4+ and adsorbed oxygen species on the catalyst surface, suitable Lewis acidic surface properties, and good reducing ability. Additionally, the enhanced SO2 and H2O resistance of the catalyst was primarily ascribed to its unique core–shell structure which prevented the MnOx core from being sulfated. A MnOx@PrOx catalyst with a hollow urchin-like core–shell structure was prepared using a sacrificial templating method and was used for the low-temperature selective catalytic reduction of NO with NH3.![]()
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Affiliation(s)
- Shuyuan Cheng
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre Guangzhou 510006 P. R. China
| | - Jing Shao
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre Guangzhou 510006 P. R. China
| | - Bichun Huang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre Guangzhou 510006 P. R. China .,Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou Higher Education Mega Centre Guangzhou 510006 P. R. China.,The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre Guangzhou 510006 P. R. China
| | - Jinkun Guan
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre Guangzhou 510006 P. R. China
| | - Lusha Zhou
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre Guangzhou 510006 P. R. China
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16
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Promoting effect of microwave irradiation on CeO2-TiO2 catalyst for selective catalytic reduction of NO by NH3. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2019.04.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Feng X, Yi J, Luo P. The Influence Of NO/O2 On The NOx Storage Properties Over A Pt-Ba-Ce/γ-Al2O3 Catalyst. OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractWith the purpose of studying the influence of NO/O2 on the NOx storage activity, a Pt-Ba-Ce/γ-Al2O3 catalyst was synthesized by an acid-aided sol-gel method. The physical and chemical properties of the catalyst were characterized by X-ray diffraction (XRD) and Transmission Electron Microscope (TEM) methods. The results showed that the composition of the catalyst was well-crystallized and the crystalline size of CeO2 (111) was about 5.7 nm. The mechanism of NO and NO2 storage and NOx temperature programmed desorption (NO-TPD) experiments were investigated to evaluate the NOx storage capacity of the catalyst. Pt-Ba-Ce/γ-Al2O3 catalyst presented the supreme NOx storage performance at 350℃, and the maximum value reached to 668.8 μmol / gcat. Compared with O2-free condition, NO oxidation to NO2 by O2 had a beneficial effect on the storage performance of NOx. NO-TPD test results showed that the NOx species stored on the catalyst surface still kept relatively stable even below 350℃.
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Affiliation(s)
- Xuedong Feng
- Insititute of advanced Energy and Power Equipment, School of Energy and Power Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, China
| | - Jing Yi
- School of Automotive and Traffic Engineering, Jiangsu University, 212013, Zhenjiang, China
| | - Peng Luo
- School of Automotive and Traffic Engineering, Jiangsu University, 212013, Zhenjiang, China
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Zhu X, Xu H, Yao Y, Liu H, Wang J, Pu Y, Feng W, Chen S. Effects of Ag 0-modification and Fe 3+-doping on the structural, optical and photocatalytic properties of TiO 2. RSC Adv 2019; 9:40003-40012. [PMID: 35541382 PMCID: PMC9076203 DOI: 10.1039/c9ra08655b] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 11/28/2019] [Indexed: 01/21/2023] Open
Abstract
Pure TiO2, Ag0-modified TiO2, Fe3+-doped TiO2, and Ag0-modified/Fe3+-doped TiO2 photocatalysts were synthesized via sol-gel technology. The crystal structure, element composition and surface morphology of the obtained photocatalysts were characterized via XRD, XPS, SEM and TEM, respectively. The results indicate that Ag-TiO2 samples show higher photocatalytic activity than pure TiO2. Unexpectedly, the photocatalytic activities of Fe-TiO2 and 1% Ag/1% Fe-TiO2 are lower than pure TiO2. To analyze the main factors affecting photocatalytic performance, the samples were further investigated by PL, DRS and BET. The results prove that the additions of Ag and Fe are advantageous for inhibiting the recombination of photoinduced pairs and improving the utilization of light. Fe-TiO2 and 1% Ag/1% Fe-TiO2 exhibit smaller specific surface areas than pure TiO2, which is the primary reason for their reduced photocatalytic performances.
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Affiliation(s)
- Xiaodong Zhu
- College of Mechanical Engineering, Chengdu University Chengdu 610106 China
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology Chengdu 610059 China
| | - Hongyan Xu
- College of Mechanical Engineering, Chengdu University Chengdu 610106 China
| | - Yin Yao
- College of Mechanical Engineering, Chengdu University Chengdu 610106 China
| | - Hui Liu
- College of Mechanical Engineering, Chengdu University Chengdu 610106 China
| | - Juan Wang
- College of Mechanical Engineering, Chengdu University Chengdu 610106 China
| | - Yun Pu
- College of Mechanical Engineering, Chengdu University Chengdu 610106 China
| | - Wei Feng
- College of Mechanical Engineering, Chengdu University Chengdu 610106 China
| | - Shanhua Chen
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology Chengdu 610059 China
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19
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Meng F, Zhang S, Li X, Zeng Y, Zhong Q. CrO assembled at the oxygen vacancies on black-TiO2 for NO oxidation. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110393] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Catalytic Oxidation of Dimethyl Disulfide over Bimetallic Cu–Au and Pt–Au Catalysts Supported on γ-Al2O3, CeO2, and CeO2–Al2O3. Catalysts 2019. [DOI: 10.3390/catal9070603] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Dimethyl disulfide (DMDS, CH3SSCH3) is an odorous and harmful air pollutant (volatile organic compound (VOC)) causing nuisance in urban areas. The abatement of DMDS emissions from industrial sources can be realized through catalytic oxidation. However, the development of active and selective catalysts having good resistance toward sulfur poisoning is required. This paper describes an investigation related to improving the performance of Pt and Cu catalysts through the addition of Au to monometallic “parent” catalysts via surface redox reactions. The catalysts were characterized using ICP-OES, N2 physisorption, XRD, XPS, HR-TEM, H2-TPR, NH3-TPD, CO2-TPD, and temperature-programmed 18O2 isotopic exchange. The performance of the catalysts was evaluated in DMDS total oxidation. In addition, the stability of a Pt–Au/Ce–Al catalyst was investigated through 40 h time onstream. Cu–Au catalysts were observed to be more active than corresponding Pt–Au catalysts based on DMDS light-off experiments. However, the reaction led to a higher amount of oxygen-containing byproduct formation, and thus the Pt–Au catalysts were more selective. H2-TPR showed that the higher redox capacity of the Cu-containing catalysts may have been the reason for better DMDS conversion and lower selectivity. The lower amount of reactive oxygen on the surface of Pt-containing catalysts was beneficial for total oxidation. The improved selectivity of ceria-containing catalysts after the Au addition may have resulted from the lowered amount of reactive oxygen as well. The Au addition improved the activity of Al2O3-supported Cu and Pt. The Au addition also had a positive effect on SO2 production in a higher temperature region. A stability test of 40 h showed that the Pt–Au/Ce–Al catalyst, while otherwise promising, was not stable enough, and further development is still needed.
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21
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Zhu B, Yin S, Sun Y, Ge T, Zi Z, Li G, Li J. Novel natural manganese ore NH
3
‐SCR catalyst with superior alkaline resistance performance at a low temperature. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23288] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Baozhong Zhu
- School of Energy and EnvironmentAnhui University of TechnologyMaanshanAnhui 243002P. R. China
| | - Shoulai Yin
- School of Energy and EnvironmentAnhui University of TechnologyMaanshanAnhui 243002P. R. China
| | - Yunlan Sun
- School of Energy and EnvironmentAnhui University of TechnologyMaanshanAnhui 243002P. R. China
| | - Tingting Ge
- School of Energy and EnvironmentAnhui University of TechnologyMaanshanAnhui 243002P. R. China
| | - Zhaohui Zi
- School of Energy and EnvironmentAnhui University of TechnologyMaanshanAnhui 243002P. R. China
| | - Guobo Li
- School of Energy and EnvironmentAnhui University of TechnologyMaanshanAnhui 243002P. R. China
| | - Jiaxin Li
- School of Energy and EnvironmentAnhui University of TechnologyMaanshanAnhui 243002P. R. China
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22
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Silica-supported metallocene catalyst poisoning: The effect of surface modification on the efficiency of the catalytic system. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.12.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Sun L, Cao S, Huang Y, Zhang Y, Xiao Y, Dong G, Su Y. VOX supported on TiO2–Ce0.9Zr0.1O2 core–shell structure catalyst for NH3-SCR of NO. RSC Adv 2019; 9:30340-30349. [PMID: 35530226 PMCID: PMC9072083 DOI: 10.1039/c9ra05024h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/13/2019] [Indexed: 01/30/2023] Open
Abstract
In this experiment, a TiO2–Ce0.9Zr0.1O2 support with core–shell structure was successfully prepared by a precipitation method and VOX/TiO2–Ce0.9Zr0.1O2 catalyst was prepared by an impregnation method, and the catalyst was used to catalyze the NH3-SCR of NO. Based on the results of HRTEM, XRD, BET, H2-TPR, NH3-TPD, XPS, Py-IR, it was speculated that due to the interaction between TiO2 and Ce0.9Zr0.1O2, more oxygen vacancies and Ce3+ are generated, which are beneficial to the existence of low-valence V by electron transfer between high valence state V and Ce3+and increase the acidic sites on the catalyst surface. The catalytic activity (>97%) of the VOX/TiO2–Ce0.9Zr0.1O2 catalyst is superior to the current commercial catalyst (V2O5–WO3/TiO2) and has a higher N2 selectivity (>97.5%) at 40 000 h−1 GHSV and 250–400 °C. VOX/TiO2–Ce0.9Zr0.1O2 catalyst exhibits high activity and selectivity in a wide temperature window.![]()
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Affiliation(s)
- Lvesheng Sun
- College of Materials Science and Chemical Engineering
- Key Laboratory of Superlight Materials and Surface Technology of Education Ministry
- Harbin Engineering University
- 150001 Harbin
- P. R. China
| | - Shunxin Cao
- College of Materials Science and Chemical Engineering
- Key Laboratory of Superlight Materials and Surface Technology of Education Ministry
- Harbin Engineering University
- 150001 Harbin
- P. R. China
| | - Yun Huang
- College of Materials Science and Chemical Engineering
- Key Laboratory of Superlight Materials and Surface Technology of Education Ministry
- Harbin Engineering University
- 150001 Harbin
- P. R. China
| | - Yiming Zhang
- College of Materials Science and Chemical Engineering
- Key Laboratory of Superlight Materials and Surface Technology of Education Ministry
- Harbin Engineering University
- 150001 Harbin
- P. R. China
| | - Youhong Xiao
- College of Power and Energy Engineering of Harbin Engineering University
- 150001 Harbin
- P. R. China
| | - Guojun Dong
- College of Materials Science and Chemical Engineering
- Key Laboratory of Superlight Materials and Surface Technology of Education Ministry
- Harbin Engineering University
- 150001 Harbin
- P. R. China
| | - Yu Su
- School of Chemistry
- Chemical Engineering and Materials of Heilongjiang University
- Harbin
- P. R. China
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24
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Yin S, Zhu B, Sun Y, Zi Z, Fang Q, Li G, Chen C, Xu T, Li J. Effect of Mn addition on the low-temperature NH3
-selective catalytic reduction of NO
x
over Fe2
O3
/activated coke catalysts: Experiment and mechanism. ASIA-PAC J CHEM ENG 2018. [DOI: 10.1002/apj.2231] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Shoulai Yin
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
| | - Baozhong Zhu
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
| | - Yunlan Sun
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
| | - Zhaohui Zi
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
| | - Qilong Fang
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
| | - Guobo Li
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
| | - Cheng Chen
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
| | - Tianyu Xu
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
| | - Jiaxin Li
- School of Energy and Environment; Anhui University of Technology; Maanshan Anhui China
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25
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Wang W, Guo R, Pan W, Hu G. Low temperature catalytic oxidation of NO over different-shaped CeO2. J RARE EARTH 2018. [DOI: 10.1016/j.jre.2017.10.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Meng L, Wang J, Sun Z, Zhu J, Li H, Wang J, Shen M. Active manganese oxide on MnO x –CeO 2 catalysts for low-temperature NO oxidation: Characterization and kinetics study. J RARE EARTH 2018. [DOI: 10.1016/j.jre.2017.05.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Yan Q, Chen S, Qiu L, Gao Y, O'Hare D, Wang Q. The synthesis of CuyMnzAl1−zOx mixed oxide as a low-temperature NH3-SCR catalyst with enhanced catalytic performance. Dalton Trans 2018; 47:2992-3004. [DOI: 10.1039/c7dt02000g] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new type of low-temperature selective catalytic reduction (SCR) catalyst, CuyMnzAl1−zOx, derived from layered double hydroxides is presented in this contribution.
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Affiliation(s)
- Qinghua Yan
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Sining Chen
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Lei Qiu
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Yanshan Gao
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
| | - Dermot O'Hare
- Chemistry Research Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Qiang Wang
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
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28
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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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29
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Dankeaw A, Gualandris F, Silva RH, Norrman K, Gudik-Sørensen M, Hansen KK, Ksapabutr B, Esposito V, Marani D. Amorphous saturated cerium–tungsten–titanium oxide nanofiber catalysts for NOx selective catalytic reaction. NEW J CHEM 2018. [DOI: 10.1039/c8nj00752g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A nano-fibrous, amorphous supersaturated CeO2/W–TiO2 SCR catalyst endowed with well-connected and open porosity, high reactivity, and tunable chemistry is herein proposed.
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Affiliation(s)
- Apiwat Dankeaw
- Department of Energy Conversion and Storage
- Technical University of Denmark
- Roskilde 4000
- Denmark
- Department of Materials Science and Engineering
| | - Fabrizio Gualandris
- Department of Energy Conversion and Storage
- Technical University of Denmark
- Roskilde 4000
- Denmark
| | - Rafael Hubert Silva
- Department of Energy Conversion and Storage
- Technical University of Denmark
- Roskilde 4000
- Denmark
- Department of Material
| | - Kion Norrman
- Department of Energy Conversion and Storage
- Technical University of Denmark
- Roskilde 4000
- Denmark
| | - Mads Gudik-Sørensen
- Department of Energy Conversion and Storage
- Technical University of Denmark
- Roskilde 4000
- Denmark
| | - Kent Kammer Hansen
- Department of Energy Conversion and Storage
- Technical University of Denmark
- Roskilde 4000
- Denmark
| | - Bussarin Ksapabutr
- Department of Materials Science and Engineering
- Silpakorn University
- Thailand
| | - Vincenzo Esposito
- Department of Energy Conversion and Storage
- Technical University of Denmark
- Roskilde 4000
- Denmark
| | - Debora Marani
- Department of Energy Conversion and Storage
- Technical University of Denmark
- Roskilde 4000
- Denmark
- Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas
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30
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Zhu B, Yin S, Sun Y, Zhu Z, Li J. Natural manganese ore catalyst for low-temperature selective catalytic reduction of NO with NH 3 in coke-oven flue gas. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:24584-24592. [PMID: 28913690 DOI: 10.1007/s11356-017-0122-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 09/05/2017] [Indexed: 06/07/2023]
Abstract
Different types of manganese ore raw materials were prepared for use as catalysts, and the effects of different manganese ore raw materials and calcination temperature on the NO conversion were analyzed. The catalysts were characterized by XRF, XRD, BET, XPS, H2-TPR, NH3-TPD, and SEM techniques. The results showed that the NO conversion of calcined manganese ore with a Mn:Fe:Al:Si ratio of 1.51:1.26:0.34:1 at 450 °C reached 80% at 120 °C and 98% at 180~240 °C. The suitable proportions and better dispersibility of active ingredients, larger BET surface area, good reductibility, a lot of acid sites, contents of Mn4+ and Fe3+, and surface-adsorbed oxygen played important roles in improving the NO conversion.
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Affiliation(s)
- Baozhong Zhu
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, Anhui, People's Republic of China
| | - Shoulai Yin
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, Anhui, People's Republic of China
| | - Yunlan Sun
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, Anhui, People's Republic of China.
- Key Laboratory of Metallurgical Emission Reduction and Resources Recycling, Ministry of Education, Anhui University of Technology, Maanshan, 243002, Anhui, People's Republic of China.
| | - Zicheng Zhu
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, Anhui, People's Republic of China
| | - Jiaxin Li
- School of Energy and Environment, Anhui University of Technology, Maanshan, 243002, Anhui, People's Republic of China
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31
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Mechanistic investigation of the different poisoning mechanisms of Cl and P on Mn/TiO 2 catalyst for selective catalytic reduction of NO x with NH 3. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.07.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Liu SM, Guo RT, Sun P, Wang SX, Pan WG, Li MY, Liu SW, Sun X, Liu J. The enhancement of Zn resistance of Mn/TiO2 catalyst for NH3-SCR reaction by the modification with Al2(SO4)3. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.06.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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33
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34
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Sun P, Guo RT, Liu SM, Wang SX, Pan WG, Li MY, Liu SW, Liu J, Sun X. Enhancement of the low-temperature activity of Ce/TiO 2 catalyst by Sm modification for selective catalytic reduction of NOx with NH 3. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2016.12.025] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Guo RT, Li MY, Sun P, Liu SM, Wang SX, Pan WG, Liu SW, Liu J, Sun X. The enhanced resistance to P species of an Mn–Ti catalyst for selective catalytic reduction of NOx with NH3 by the modification with Mo. RSC Adv 2017. [DOI: 10.1039/c7ra01876b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The modification of Mn–Ti catalyst by Mo could enhance its resistance to P species.
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Affiliation(s)
- Rui-tang Guo
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Ming-yuan Li
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Peng Sun
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Shu-ming Liu
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Shu-xian Wang
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Wei-guo Pan
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Shuai-wei Liu
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Jian Liu
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Xiao Sun
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
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36
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Zhang R, Wang C, Li K, Sun X, Ning P, Tang L, Liu Y. Influence of Ca doping and calcination temperature on selective catalytic oxidation of NO over Mn–Ca–Ox–(CO3)ycatalysts. NEW J CHEM 2017. [DOI: 10.1039/c7nj02230a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective catalytic oxidation (SCO) is an unconventional technology for denitration.
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Affiliation(s)
- Ruiyuan Zhang
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming
- China
| | - Chi Wang
- Faculty of Chemical Engineering
- Kunming University of Science and Technology
- Kunming
- China
| | - Kai Li
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming
- China
| | - Xin Sun
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming
- China
| | - Ping Ning
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming
- China
| | - Lihong Tang
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming
- China
| | - Ye Liu
- Faculty of Environmental Science and Engineering
- Kunming University of Science and Technology
- Kunming
- China
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37
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Sun Z, Wang J, Zhu J, Wang C, Wang J, Shen M. Investigation of the active sites for NO oxidation reactions over MnOx–CeO2 catalysts. NEW J CHEM 2017. [DOI: 10.1039/c6nj03838g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mn4+/Mn3+ is the active site for NO oxidation reactions, according to the TOF calculated with respect to the initial reducibility measured by H2-TPR quantification.
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Affiliation(s)
- Zhihui Sun
- Key Laboratory for Green Chemical Technology of State Education Ministry
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Jun Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Jinxin Zhu
- Key Laboratory for Green Chemical Technology of State Education Ministry
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Chen Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Jianqiang Wang
- Key Laboratory for Green Chemical Technology of State Education Ministry
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Meiqing Shen
- Key Laboratory for Green Chemical Technology of State Education Ministry
- School of Chemical Engineering & Technology
- Tianjin University
- Tianjin 300350
- P. R. China
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38
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Liu C, Gao G, Shi JW, He C, Li G, Bai N, Niu C. MnOx-CeO2 shell-in-shell microspheres for NH3-SCR de-NOx at low temperature. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.08.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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39
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WANG W, LI W, GUO R, CHEN Q, WANG Q, PAN W, HU G. A CeFeOx catalyst for catalytic oxidation of NO to NO2. J RARE EARTH 2016. [DOI: 10.1016/s1002-0721(16)60109-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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40
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Chen QL, Guo RT, Wang QS, Pan WG, Yang NZ, Lu CZ, Wang SX. The promotion effect of Co doping on the K resistance of Mn/TiO2 catalyst for NH3-SCR of NO. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.03.045] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Sun Y, Zhong S, Xin H, Zhang F, Chen L, Li X. Enhancement in oxidative property on amorphous rare earth doped Mn catalysts. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.01.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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42
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Li W, Guo RT, Wang SX, Pan WG, Chen QL, Li MY, Sun P, Liu SM. The enhanced performance of a CeSiOx support on a Mn/CeSiOx catalyst for selective catalytic reduction of NOx with NH3. RSC Adv 2016. [DOI: 10.1039/c6ra18821d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of Mn/CeSiOx catalysts were prepared by the wet impregnation method and used for selective catalytic reduction of NO with NH3.
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Affiliation(s)
- Wei Li
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Rui-tang Guo
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Shu-xian Wang
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Wei-guo Pan
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Qi-lin Chen
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Ming-yuan Li
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Peng Sun
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
| | - Shu-ming Liu
- School of Energy Source and Mechanical Engineering
- Shanghai University of Electric Power
- Shanghai
- P. R. China
- Shanghai Engineering Research Center of Power Generation Environment Protection
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43
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Zhang Y, Zheng Y, Chen X, Fu B. Fabrication and formation mechanism of Ce2O3–CeO2–CuO–MnO2/CNTs catalysts and application in low-temperature NO reduction with NH3. RSC Adv 2016. [DOI: 10.1039/c6ra10482g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ce2O3–CeO2–CuO–MnO2/CNTs catalysts were synthesized via a redox strategy, and presented 58–85% NO conversion at 80–180 °C.
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Affiliation(s)
- Yanbing Zhang
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- People's Republic of China
| | - Yuying Zheng
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- People's Republic of China
| | - Xuehong Chen
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- People's Republic of China
| | - Binbin Fu
- College of Materials Science and Engineering
- Fuzhou University
- Fuzhou 350108
- People's Republic of China
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44
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The influence of F and Cl on Mn/TiO2 catalyst for selective catalytic reduction of NO with NH3: A comparative study. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.08.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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