51
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Zhang Y, Liu L, Chen Y, Cheng X, Song C, Ding M, Zhao H. Synthesis of MnO 2-CuO-Fe 2O 3/CNTs catalysts: low-temperature SCR activity and formation mechanism. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:848-855. [PMID: 31019872 PMCID: PMC6466767 DOI: 10.3762/bjnano.10.85] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/29/2019] [Indexed: 06/09/2023]
Abstract
MnO2-CuO-Fe2O3/CNTs catalysts, as a low-dimensional material, were fabricated by a mild redox strategy and used in denitration reactions. A formation mechanism of the catalysts was proposed. NO conversions of 4% MnO2-CuO-Fe2O3/CNTs catalyst of 43.1-87.9% at 80-180 °C were achieved, which was ascribed to the generation of amorphous MnO2, CuO and Fe2O3, and a high surface-oxygen (Os) content.
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Affiliation(s)
- Yanbing Zhang
- College of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467000, People′s Republic of China
- Engineering Laboratory of Henan Province for Efficient Utilization of Coal Salt Resources, Pingdingshan 467000, People′s Republic of China
| | - Lihua Liu
- College of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467000, People′s Republic of China
- Engineering Laboratory of Henan Province for Efficient Utilization of Coal Salt Resources, Pingdingshan 467000, People′s Republic of China
| | - Yingzan Chen
- College of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467000, People′s Republic of China
- Engineering Laboratory of Henan Province for Efficient Utilization of Coal Salt Resources, Pingdingshan 467000, People′s Republic of China
| | - Xianglong Cheng
- College of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467000, People′s Republic of China
- Engineering Laboratory of Henan Province for Efficient Utilization of Coal Salt Resources, Pingdingshan 467000, People′s Republic of China
| | - Chengjian Song
- College of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467000, People′s Republic of China
- Engineering Laboratory of Henan Province for Efficient Utilization of Coal Salt Resources, Pingdingshan 467000, People′s Republic of China
| | - Mingjie Ding
- College of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467000, People′s Republic of China
- Engineering Laboratory of Henan Province for Efficient Utilization of Coal Salt Resources, Pingdingshan 467000, People′s Republic of China
| | - Haipeng Zhao
- College of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan 467000, People′s Republic of China
- Engineering Laboratory of Henan Province for Efficient Utilization of Coal Salt Resources, Pingdingshan 467000, People′s Republic of China
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52
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Yan L, Gu Y, Han L, Wang P, Li H, Yan T, Kuboon S, Shi L, Zhang D. Dual Promotional Effects of TiO 2-Decorated Acid-Treated MnO x Octahedral Molecular Sieve Catalysts for Alkali-Resistant Reduction of NO x. ACS APPLIED MATERIALS & INTERFACES 2019; 11:11507-11517. [PMID: 30817117 DOI: 10.1021/acsami.9b01291] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Alkali metals generated during waste incineration in power stations are not conducive to the control of nitrogen oxide (NO x) emission. Hence, improved selective catalytic reduction of NO x with ammonia (NH3-SCR) in the presence of alkali metals is a major issue for practical NO x removal. In this work, we developed a novel TiO2-decorated acid-treated MnO x octahedral molecular sieve (OMS-5(H)@TiO2) catalyst with improved alkali-resistant NO x reduction at low temperature, and the dual promotional effects of OMS-5(H)@TiO2 catalysts were clarified. It was found that the special structure of the acid-treated MnO x octahedral molecular sieve (OMS-5(H)) was responsible for the trapping of alkali metals and high deNO x activity at low temperature. Subsequently, the decoration by TiO2 further improved the redox properties by accelerating the high ratio of Mn4+ and Oα on the surface of the highly active (OMS-5(H)@TiO2) catalyst. Moreover, a thorough mechanism study via in situ diffuse reflectance infrared Fourier transform spectroscopy (in situ DRIFTs) demonstrated that the acid treatment led to remarkable increment of acid sites, which enabled the catalyst to resist alkali metals in the form of ion exchange. Meanwhile, the decoration of TiO2 further increased the strength of the Lewis acid sites, assisting more active intermediate species to effectively take part in the deNO x reaction. Besides, a "fast SCR" process was observed to certify that the decoration of TiO2 promoted the improvement of low-temperature activity in the presence of alkali metals. The dual effects combining OMS-5(H) with TiO2 decoration in terms of alkali metal resistance and high catalytic activity at low temperature proved that the high-performance deNO x catalyst was successfully developed in this work. The work paves a way for the development of superior low-temperature SCR catalysts with improved NO x reduction efficiency in the presence of alkali metals.
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Affiliation(s)
- Lijun Yan
- Department of Chemistry, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology, College of Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Yundong Gu
- Department of Chemistry, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology, College of Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Lupeng Han
- Department of Chemistry, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology, College of Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Penglu Wang
- Department of Chemistry, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology, College of Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Hongrui Li
- Department of Chemistry, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology, College of Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Tingting Yan
- Department of Chemistry, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology, College of Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Sanchai Kuboon
- National Nanotechnology Center , National Science and Technology Development Agency , 111 Thailand Science Park , Khlong Luang , Pathum Thani 12120 , Thailand
| | - Liyi Shi
- Department of Chemistry, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology, College of Sciences , Shanghai University , Shanghai 200444 , P. R. China
| | - Dengsong Zhang
- Department of Chemistry, School of Environmental and Chemical Engineering, Research Center of Nano Science and Technology, College of Sciences , Shanghai University , Shanghai 200444 , P. R. China
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53
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Wu X, Li X, Du Y, Wang R, Guo X, Hou B. NOx Removal Performance Optimization of NiMnTi Mixed Oxide Catalysts by Tuning the Redox Capability. ChemCatChem 2019. [DOI: 10.1002/cctc.201802050] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xu Wu
- Department of Chemistry and Chemical EngineeringTaiyuan University of Technology Taiyuan 030024 P.R. China
| | - XiaoJian Li
- Department of Chemistry and Chemical EngineeringTaiyuan University of Technology Taiyuan 030024 P.R. China
| | - Yali Du
- Department of Chemistry and Chemical EngineeringJinzhong University Jinzhong 030619 P.R. China
| | - RuoNan Wang
- Department of Chemistry and Chemical EngineeringTaiyuan University of Technology Taiyuan 030024 P.R. China
| | - XingMei Guo
- Department of Chemistry and Chemical EngineeringTaiyuan University of Technology Taiyuan 030024 P.R. China
| | - BenHui Hou
- Department of Chemistry and Chemical EngineeringTaiyuan University of Technology Taiyuan 030024 P.R. China
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54
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Shi Y, Tang X, Yi H, Gao F, Zhao S, Wang J, Yang K, Zhang R. Controlled Synthesis of Spinel-Type Mesoporous Mn–Co Rods for SCR of NOx with NH3 at Low Temperature. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05223] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yiran Shi
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Xiaolong Tang
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Honghong Yi
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Fengyu Gao
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Shunzheng Zhao
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
- Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Jiangen Wang
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Kun Yang
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
| | - Runcao Zhang
- Department of Environmental Engineering, School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China
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55
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Kang L, Han L, He J, Li H, Yan T, Chen G, Zhang J, Shi L, Zhang D. Improved NO x Reduction in the Presence of SO 2 by Using Fe 2O 3-Promoted Halloysite-Supported CeO 2-WO 3 Catalysts. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:938-945. [PMID: 30576117 DOI: 10.1021/acs.est.8b05637] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Currently, selective catalytic reduction (SCR) of NO x with NH3 in the presence of SO2 by using vanadium-free catalysts is still an important issue for the removal of NO x for stationary sources. Developing high-performance catalysts for NO x reduction in the presence of SO2 is a significant challenge. In this work, a series of Fe2O3-promoted halloysite-supported CeO2-WO3 catalysts were synthesized by a molten salt treatment followed by the impregnation method and demonstrated improved NO x reduction in the presence of SO2. The obtained catalyst exhibits superior catalytic activity, high N2 selectivity over a wide temperature range from 270 to 420 °C, and excellent sulfur-poisoning resistance. It has been demonstrated that the Fe2O3-promoted halloysite-supported CeO2-WO3 catalyst increased the ratio of Ce3+ and the amount of surface oxygen vacancies and enhanced the interaction between active components. Moreover, the SCR reaction mechanism of the obtained catalyst was studied using in situ diffuse reflectance infrared Fourier transform spectroscopy. It can be inferred that the number of Brønsted acid sites is significantly increased, and more active species could be produced by Fe2O3 promotion. Furthermore, in the presence of SO2, the Fe2O3-promoted halloysite-supported CeO2-WO3 catalyst can effectively prevent the irreversible bonding of SO2 with the active components, making the catalyst exhibit desirable sulfur resistance. The work paves the way for the development of high-performance SCR catalysts with improved NO x reduction in the presence of SO2.
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Affiliation(s)
- Lin Kang
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
| | - Lupeng Han
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
| | - Jiebing He
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
| | - Hongrui Li
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
| | - Tingting Yan
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
| | - Guorong Chen
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
| | - Jianping Zhang
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
| | - Liyi Shi
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
| | - Dengsong Zhang
- Department of Chemistry, College of Sciences, Research Center of Nano Science and Technology , Shanghai University , Shanghai 200444 , P. R. China
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56
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Xie A, Tao Y, Jin X, Gu P, Huang X, Zhou X, Luo S, Yao C, Li X. A γ-Fe2O3-modified nanoflower-MnO2/attapulgite catalyst for low temperature SCR of NOx with NH3. NEW J CHEM 2019. [DOI: 10.1039/c8nj04524k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel mesoporous γ-Fe2O3-modified nanoflower-MnO2/attapulgite catalyst has been fabricated through a facile hydrothermal method and used for low temperature SCR of NOx with NH3.
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Affiliation(s)
- Aijuan Xie
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Yiyang Tao
- School of Fine Arts
- Nanjing Normal University
- Nanjing
- P. R. China
| | - Xiang Jin
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Pengfei Gu
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Xiaoyan Huang
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Xingmeng Zhou
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Shiping Luo
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Chao Yao
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- P. R. China
| | - Xiazhang Li
- School of Petrochemical Engineering
- Changzhou University
- Changzhou 213164
- P. R. China
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57
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Sun L, Li K, Zhang Z, Hu X, Tian H, Zhang Y, Yang X. MnO2–Graphene-oxide-scroll–TiO2 composite catalyst for low-temperature NH3-SCR of NO with good steam and SO2 resistance obtained by low-temperature carbon-coating and selective atomic layer deposition. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00132h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Coating GO at low temperature and selectively depositing TiO2 on oxygen-containing functional groups on GO.
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Affiliation(s)
- Liwei Sun
- State Key Laboratory of Rare Earth Resource Utilization
- Jilin Province Key Laboratory of Green Chemistry and Process
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun 130022
| | - Kai Li
- State Key Laboratory of Rare Earth Resource Utilization
- Jilin Province Key Laboratory of Green Chemistry and Process
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun 130022
| | - Zeshu Zhang
- State Key Laboratory of Rare Earth Resource Utilization
- Jilin Province Key Laboratory of Green Chemistry and Process
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun 130022
| | - Xuefeng Hu
- State Key Laboratory of Rare Earth Resource Utilization
- Jilin Province Key Laboratory of Green Chemistry and Process
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun 130022
| | - Heyuan Tian
- State Key Laboratory of Rare Earth Resource Utilization
- Jilin Province Key Laboratory of Green Chemistry and Process
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun 130022
| | - Yibo Zhang
- State Key Laboratory of Rare Earth Resource Utilization
- Jilin Province Key Laboratory of Green Chemistry and Process
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun 130022
| | - Xiangguang Yang
- State Key Laboratory of Rare Earth Resource Utilization
- Jilin Province Key Laboratory of Green Chemistry and Process
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun 130022
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58
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Shi JW, Wang Y, Duan R, Gao C, Wang B, He C, Niu C. The synergistic effects between Ce and Cu in CuyCe1−yW5Ox catalysts for enhanced NH3-SCR of NOx and SO2 tolerance. Catal Sci Technol 2019. [DOI: 10.1039/c8cy01949e] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Non-manganese-based metal oxides are promising catalysts for the NH3-SCR (selective catalytic reduction) of NOx at low temperatures.
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Affiliation(s)
- Jian-Wen Shi
- State Key Laboratory of Electrical Insulation and Power Equipment
- Center of Nanomaterials for Renewable Energy
- School of Electrical Engineering
- Xi'an Jiaotong University
- Xi'an 710049
| | - Yao Wang
- State Key Laboratory of Electrical Insulation and Power Equipment
- Center of Nanomaterials for Renewable Energy
- School of Electrical Engineering
- Xi'an Jiaotong University
- Xi'an 710049
| | - Ruibin Duan
- Guangdong Provincial Academy of Building Research Group Co., Ltd
- Guangzhou 510530
- China
| | - Chen Gao
- State Key Laboratory of Electrical Insulation and Power Equipment
- Center of Nanomaterials for Renewable Energy
- School of Electrical Engineering
- Xi'an Jiaotong University
- Xi'an 710049
| | - Baorui Wang
- State Key Laboratory of Electrical Insulation and Power Equipment
- Center of Nanomaterials for Renewable Energy
- School of Electrical Engineering
- Xi'an Jiaotong University
- Xi'an 710049
| | - Chi He
- Department of Environmental Science and Engineering
- School of Energy and Power Engineering
- Xi'an Jiaotong University
- Xi'an 710049
- China
| | - Chunming Niu
- State Key Laboratory of Electrical Insulation and Power Equipment
- Center of Nanomaterials for Renewable Energy
- School of Electrical Engineering
- Xi'an Jiaotong University
- Xi'an 710049
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59
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Venegas F, López N, Sánchez-Calderón L, Aguila G, Araya P, Guo X, Zhu Y, Guerrero S. The transient reduction of NO with CO and naphthalene in the presence of oxygen using a core–shell SmCeO2@TiO2-supported copper catalyst. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00545e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This work studied the reaction of common pollutants on a catalytic surface under oxidizing conditions.
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Affiliation(s)
- Fernanda Venegas
- Green Technology Research Group
- Facultad de Ingeniería y Ciencias Aplicadas
- Universidad de los Andes
- Las Condes
- Chile
| | - Naima López
- Green Technology Research Group
- Facultad de Ingeniería y Ciencias Aplicadas
- Universidad de los Andes
- Las Condes
- Chile
| | - Luis Sánchez-Calderón
- Green Technology Research Group
- Facultad de Ingeniería y Ciencias Aplicadas
- Universidad de los Andes
- Las Condes
- Chile
| | - Gonzalo Aguila
- Departamento de Ciencias de la Ingeniería
- Facultad de Ingeniería
- Universidad Andres Bello
- Chile
| | - Paulo Araya
- Departamento de Ingeniería Química
- Biotecnología y Materiales
- Universidad de Chile
- Casilla 2777
- Chile
| | - Xuyun Guo
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hong Kong
- P.R. China
| | - Ye Zhu
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hong Kong
- P.R. China
| | - Sichem Guerrero
- Green Technology Research Group
- Facultad de Ingeniería y Ciencias Aplicadas
- Universidad de los Andes
- Las Condes
- Chile
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60
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Promotional effects of Nb on selective catalytic reduction of NO with NH3 over Fe -Nb0.5--Ce0.5 (x = 0.45, 0.4, 0.35) oxides catalysts. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.04.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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61
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Evaluating the Intermetallic Interaction of Fe or Cu Doped Mn/TiO2 Catalysts: SCR Activity and Sulfur Tolerance. Catal Letters 2018. [DOI: 10.1007/s10562-018-2613-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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62
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Wei J, Yao H, Wang Y, Luo G. Controllable Preparation and Catalytic Performance of Magnetic Fe 3O 4@CeO 2-Polysulfone Nanocomposites with Core–Shell Structure. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b03191] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan Wei
- State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Hongbao Yao
- State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yujun Wang
- State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Guangsheng Luo
- State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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63
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Wang Y, Kang Y, Ge M, Xiu Zhang, Zhan L. Cerium and tin oxides anchored onto reduced graphene oxide for selective catalytic reduction of NO with NH 3 at low temperatures. RSC Adv 2018; 8:36383-36391. [PMID: 35558442 PMCID: PMC9088850 DOI: 10.1039/c8ra05151h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 10/18/2018] [Indexed: 12/23/2022] Open
Abstract
A series of cerium and tin oxides anchored on reduced graphene oxide (CeO2-SnO x /rGO) catalysts are synthesized using a hydrothermal method and their catalytic activities are investigated by selective catalytic reduction (SCR) of NO with NH3 in the temperature range of 120-280 °C. The results indicate that the CeO2-SnO x /rGO catalyst shows high SCR activity and high selectivity to N2 in the temperature range of 120-280 °C. The catalyst with a mass ratio of (Ce + Sn)/GO = 3.9 exhibits NO conversion of about 86% at 160 °C, above 97% NO conversion at temperatures of 200-280 °C and higher than 95% N2 selectivity at 120-280 °C. In addition, the catalyst presents a certain SO2 resistance. It is found that the highly dispersed CeO2 nanoparticles are deposited on the surface of rGO nanosheets, because of the incorporation of Sn4+ into the lattice of CeO2. The mesoporous structures of the CeO2-SnO x /rGO catalyst provides a large specific surface area and more active sites for facilitating the adsorption of reactant species, leading to high SCR activity. More importantly, the synergistic interaction between cerium and tin oxides is responsible for the excellent SCR activity, which results in a higher ratio of Ce3+/(Ce3+ + Ce4+), higher concentrations of surface chemisorbed oxygen and oxygen vacancies, more strong acid sites and stronger acid strength on the surface of the CeSn(3.9)/rGO catalyst.
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Affiliation(s)
- Yanli Wang
- State Key Laboratory of Chemical Engineering, Key Laboratory for Specially Functional Polymers and Related Technology of Ministry of Education, Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252914
| | - Ying Kang
- State Key Laboratory of Chemical Engineering, Key Laboratory for Specially Functional Polymers and Related Technology of Ministry of Education, Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252914
| | - Meng Ge
- State Key Laboratory of Chemical Engineering, Key Laboratory for Specially Functional Polymers and Related Technology of Ministry of Education, Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252914
| | - Xiu Zhang
- State Key Laboratory of Chemical Engineering, Key Laboratory for Specially Functional Polymers and Related Technology of Ministry of Education, Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252914
| | - Liang Zhan
- State Key Laboratory of Chemical Engineering, Key Laboratory for Specially Functional Polymers and Related Technology of Ministry of Education, Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology Shanghai 200237 China +86 21 64252914
- CAS Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences Taiyuan 030001 China
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64
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Lin Q, Feng X, Zhang H, Lin C, Liu S, Xu H, Chen Y. Hydrothermal deactivation over CuFe/BEA for NH3-SCR. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.04.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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65
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Zhao D, Wang C, Yu F, Shi Y, Cao P, Dan J, Chen K, Lv Y, Guo X, Dai B. Enhanced Oxygen Vacancies in a Two-Dimensional MnAl-Layered Double Oxide Prepared via Flash Nanoprecipitation Offers High Selective Catalytic Reduction of NO x with NH₃. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E620. [PMID: 30111727 PMCID: PMC6116200 DOI: 10.3390/nano8080620] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/09/2018] [Accepted: 08/10/2018] [Indexed: 11/21/2022]
Abstract
A two-dimensional MnAl-layered double oxide (LDO) was obtained by flash nanoprecipitation method (FNP) and used for the selective catalytic reduction of NOx with NH₃. The MnAl-LDO (FNP) catalyst formed a particle size of 114.9 nm. Further characterization exhibited rich oxygen vacancies and strong redox property to promote the catalytic activity at low temperature. The MnAl-LDO (FNP) catalyst performed excellent NO conversion above 80% at the temperature range of 100⁻400 °C, and N₂ selectivity above 90% below 200 °C, with a gas hourly space velocity (GHSV) of 60,000 h-1, and a NO concentration of 500 ppm. The maximum NO conversion is 100% at 200 °C; when the temperature in 150⁻250 °C, the NO conversion can also reach 95%. The remarkable low-temperature catalytic performance of the MnAl-LDO (FNP) catalyst presented potential applications for controlling NO emissions on the account of the presentation of oxygen vacancies.
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Affiliation(s)
- Dan Zhao
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Chao Wang
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Feng Yu
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Yulin Shi
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Peng Cao
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Jianming Dan
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Kai Chen
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Yin Lv
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Xuhong Guo
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Bin Dai
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
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66
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Li F, Xie J, Cui H, Gong P, He F. Performance regulation of Mn/TiO2 catalysts by surfactants for the selective catalytic reduction of NO with NH3 at low temperatures. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1433-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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67
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Sheng Z, Ma D, Yu D, Xiao X, Huang B, Yang L, Wang S. Synthesis of novel MnO @TiO2 core-shell nanorod catalyst for low-temperature NH3-selective catalytic reduction of NO with enhanced SO2 tolerance. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63059-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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68
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Mn-Ce-V-WOx/TiO2 SCR Catalysts: Catalytic Activity, Stability and Interaction among Catalytic Oxides. Catalysts 2018. [DOI: 10.3390/catal8020076] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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69
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Huang X, Xie A, Zhou X, Xia J, Luo S, Yao C, Li X. Fabrication of γ-MnO2-Ce Pillared Montmorillonite for Low Temperature NH3-SCR. ACTA ACUST UNITED AC 2018. [DOI: 10.1515/zpch-2017-1064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A series of γ-MnO2-Ce/MMT catalyst materials synthesized by homogeneous precipitation method was investigated for the selective catalytic reduction (SCR) of NOx with NH3. X-ray diffraction and specific surface areas were utilized for micro structure and layer spacing investigation. And NH3-TPD, Pyridoxine IR, H2-TPR and XPS were used to investigate Brønsted acid and Lewis acid, redox properties, atomic concentrations and element chemical state for as-prepared catalysts. The results showed that the γ-MnO2-Ce/MMT had superior NOx conversion compared to the bulk particles, among which 6 wt.% γ-MnO2-Ce/MMT displayed the best deNOx of 95.3% for the low temperature selective catalytic reduction of NOx with NH3 (NH3-SCR) under the GHSV of 25,000 h−1, therefore it is a promising catalyst for low temperature NH3-SCR.
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Affiliation(s)
- Xiaoyan Huang
- School of Petrochemical Engineering , Changzhou University , Changzhou 213164 , P.R. China
| | - Aijuan Xie
- School of Petrochemical Engineering , Changzhou University , Changzhou 213164 , P.R. China , Tel.: +86 519 86330158, Fax: +86 519 86330158
| | - Xingmeng Zhou
- School of Petrochemical Engineering , Changzhou University , Changzhou 213164 , P.R. China
| | - Jianwen Xia
- Jiangsu Huayuan Mining Co. Ltd. , Changzhou University , Changzhou 213164 , P.R. China
| | - Shiping Luo
- School of Petrochemical Engineering , Changzhou University , Changzhou 213164 , P.R. China , Tel.: +86 519 86330158, Fax: +86 519 86330158
| | - Chao Yao
- School of Petrochemical Engineering , Changzhou University , Changzhou 213164 , P.R. China
| | - Xiazhang Li
- School of Petrochemical Engineering , Changzhou University , Changzhou 213164 , P.R. China
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70
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Wang T, Zhu C, Liu H, Xu Y, Zou X, Xu B, Chen T. Performance of selective catalytic reduction of NO with NH 3 over natural manganese ore catalysts at low temperature. ENVIRONMENTAL TECHNOLOGY 2018; 39:317-326. [PMID: 28278084 DOI: 10.1080/09593330.2017.1300190] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 02/02/2017] [Indexed: 06/06/2023]
Abstract
Natural manganese ore catalysts for selective catalytic reduction (SCR) of NO with NH3 at low temperature in the presence and absence of SO2 and H2O were systematically investigated. The physical and chemical properties of catalysts were characterized by X-ray diffraction, Brunauer-Emmett-Teller (BET) specific surface area, NH3 temperature-programmed desorption (NH3-TPD) and NO-TPD methods. The results showed that natural manganese ore from Qingyang of Anhui Province had a good low-temperature activity and N2 selectivity, and it could be a novel catalyst in terms of stability, good efficiency, good reusability and lower cost. The NO conversion exceeded 85% between 150°C and 300°C when the initial NO concentration was 1000 ppm. The activity was suppressed by adding H2O (10%) or SO2 (100 or 200 ppm), respectively, and its activity could recover while the SO2 supply is cut off. The simultaneous addition of H2O and SO2 led to the increase of about 100% in SCR activity than bare addition of SO2. The formation of the amorphous MnOx, high concentration of lattice oxygen and surface-adsorbed oxygen groups and a lot of reducible species as well as adsorption of the reactants brought about excellent SCR performance and exhibited good SO2 and H2O resistance.
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Affiliation(s)
- Tao Wang
- a School of Resource and Environmental Engineering , Hefei University of Technology , Hefei , People's Republic of China
- b Institute of Atmospheric Environment and Pollution Control , Hefei University of Technology , Hefei , People's Republic of China
| | - Chengzhu Zhu
- a School of Resource and Environmental Engineering , Hefei University of Technology , Hefei , People's Republic of China
- b Institute of Atmospheric Environment and Pollution Control , Hefei University of Technology , Hefei , People's Republic of China
| | - Haibo Liu
- a School of Resource and Environmental Engineering , Hefei University of Technology , Hefei , People's Republic of China
| | - Yongpeng Xu
- a School of Resource and Environmental Engineering , Hefei University of Technology , Hefei , People's Republic of China
- b Institute of Atmospheric Environment and Pollution Control , Hefei University of Technology , Hefei , People's Republic of China
| | - Xuehua Zou
- a School of Resource and Environmental Engineering , Hefei University of Technology , Hefei , People's Republic of China
| | - Bin Xu
- a School of Resource and Environmental Engineering , Hefei University of Technology , Hefei , People's Republic of China
| | - Tianhu Chen
- a School of Resource and Environmental Engineering , Hefei University of Technology , Hefei , People's Republic of China
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71
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Zheng S, Song L, Tang S, Liu C, Yue H, Liang B. Insight into the synergism between MnO 2 and acid sites over Mn-SiO 2@TiO 2 nano-cups for low-temperature selective catalytic reduction of NO with NH 3. RSC Adv 2018; 8:1979-1986. [PMID: 35542593 PMCID: PMC9077400 DOI: 10.1039/c7ra11868f] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 12/23/2017] [Indexed: 01/20/2023] Open
Abstract
The rational synthesis of low-temperature catalysts with high catalytic activity and stability is highly desirable for the selective catalytic reduction of NO with NH3. Here we synthesized a Mn-SiO2/TiO2 nano-cup catalyst via the coating of the mesoporous TiO2 layers on SiO2 spheres and subsequent inlay of MnO2 nanoparticles in the narrow annulus. This catalyst exhibited superior catalytic SCR activities and stability for low-temperature selective catalytic reduction of NO with NH3, with NO conversion of ∼100%, N2 selectivity above 90% at a temperature ∼140 °C. The characterization results, such as BET, XRD, H2-TPR, O2/NH3-TPD and XPS, indicated that this nano-cup structure catalyst possesses high concentration and dispersion of Mn4+ active species, strong chemisorbed O- or O2 2- species and highly stable MnO X active components over the annular structures of the TiO2 shell and SiO2 sphere, and thus enhanced the low-temperature SCR performance.
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Affiliation(s)
- Siyi Zheng
- Multi-phases Mass Transfer and Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University Chengdu 610065 China +86 22 85997677 +86 22 85997677
| | - Lei Song
- Multi-phases Mass Transfer and Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University Chengdu 610065 China +86 22 85997677 +86 22 85997677
| | - Siyang Tang
- Multi-phases Mass Transfer and Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University Chengdu 610065 China +86 22 85997677 +86 22 85997677
| | - Changjun Liu
- Multi-phases Mass Transfer and Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University Chengdu 610065 China +86 22 85997677 +86 22 85997677
- Institute of New Energy and Low-Carbon Technology, Sichuan University Chengdu 610207 China
| | - Hairong Yue
- Multi-phases Mass Transfer and Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University Chengdu 610065 China +86 22 85997677 +86 22 85997677
| | - Bin Liang
- Multi-phases Mass Transfer and Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University Chengdu 610065 China +86 22 85997677 +86 22 85997677
- Institute of New Energy and Low-Carbon Technology, Sichuan University Chengdu 610207 China
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72
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Zhang Y, Ding M, Song C, Lv Y, Zhao H. Selective catalytic reduction of NO with NH 3 over MnO 2/PDOPA@CNT catalysts prepared via poly(dopamine) functionalization. NEW J CHEM 2018. [DOI: 10.1039/c8nj02269k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
MnO2/PDOPA@CNT catalysts were for the first time prepared via poly(dopamine) functionalization and applied in low-temperature NO reduction with NH3.
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Affiliation(s)
- Yanbing Zhang
- College of Materials and Chemical Engineering
- Henan University of Urban Construction
- Pingdingshan 467000
- People's Republic of China
| | - Mingjie Ding
- College of Materials and Chemical Engineering
- Henan University of Urban Construction
- Pingdingshan 467000
- People's Republic of China
| | - Chengjian Song
- College of Materials and Chemical Engineering
- Henan University of Urban Construction
- Pingdingshan 467000
- People's Republic of China
| | - Yingjie Lv
- Henan Vocational College of Applied Technology
- Zhengzhou 450000
- People's Republic of China
| | - Haipeng Zhao
- College of Materials and Chemical Engineering
- Henan University of Urban Construction
- Pingdingshan 467000
- People's Republic of China
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73
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Zhang M, Huang B, Jiang H, Chen Y. Research progress in the SO 2 resistance of the catalysts for selective catalytic reduction of NO x. Chin J Chem Eng 2017. [DOI: 10.1016/j.cjche.2017.03.030] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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74
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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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75
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Guo RT, Sun P, Pan WG, Li MY, Liu SM, Sun X, Liu SW, Liu J. A Highly Effective MnNdOx Catalyst for the Selective Catalytic Reduction of NOx with NH3. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03705] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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, Shanghai, P. R. China
| | - 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, Shanghai, P. R. China
| | - 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, Shanghai, P. R. China
| | - 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, Shanghai, P. R. China
| | - 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, Shanghai, P. R. China
| | - 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, Shanghai, P. R. China
| | - 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, Shanghai, P. R. China
| | - 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, Shanghai, P. R. China
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76
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Template-free synthesis of hierarchically macro-mesoporous Mn-TiO2 catalysts for selective reduction of NO with NH3. Front Chem Sci Eng 2017. [DOI: 10.1007/s11705-017-1679-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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77
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A Review on Selective Catalytic Reduction of NOx by NH3 over Mn–Based Catalysts at Low Temperatures: Catalysts, Mechanisms, Kinetics and DFT Calculations. Catalysts 2017. [DOI: 10.3390/catal7070199] [Citation(s) in RCA: 126] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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78
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Liu J, Liu J, Zhao Z, Wei Y, Song W. Fe-Beta@CeO2
core-shell catalyst with tunable shell thickness for selective catalytic reduction of NO
x
with NH3. AIChE J 2017. [DOI: 10.1002/aic.15743] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jixing Liu
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control; China University of Petroleum; Beijing 102249 P. R. China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control; China University of Petroleum; Beijing 102249 P. R. China
| | - Zhen Zhao
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control; China University of Petroleum; Beijing 102249 P. R. China
| | - Yuechang Wei
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control; China University of Petroleum; Beijing 102249 P. R. China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control; China University of Petroleum; Beijing 102249 P. R. China
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79
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Liu J, Liu J, Zhao Z, Wei Y, Song W, Li J, Zhang X. A Unique Fe/Beta@TiO2 Core–Shell Catalyst by Small-Grain Molecular Sieve as the Core and TiO2 Nanosize Thin Film as the Shell for the Removal of NOx. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00740] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jixing Liu
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Zhen Zhao
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Yuechang Wei
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Weiyu Song
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Jianmei Li
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
| | - Xiao Zhang
- State Key Laboratory of Heavy Oil Processing and Beijing Key Lab of Oil & Gas Pollution Control, China University of Petroleum, Beijing 102249, P. R. China
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80
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Xie A, Zhou X, Huang X, Ji L, Zhou W, Luo S, Yao C. Cerium-loaded MnO x /attapulgite catalyst for the low-temperature NH 3 -selective catalytic reduction. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.01.034] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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81
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Huang B, Yu D, Sheng Z, Yang L. Novel CeO 2@TiO 2 core-shell nanostructure catalyst for selective catalytic reduction of NOx with NH 3. J Environ Sci (China) 2017; 55:129-136. [PMID: 28477806 DOI: 10.1016/j.jes.2016.05.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 05/20/2016] [Accepted: 05/26/2016] [Indexed: 06/07/2023]
Abstract
The CeO2@TiO2 core-shell nanostructure catalyst prepared by a two-step hydrothermal method was used for selective catalytic reduction (SCR) of NOx with NH3 in this study. The catalyst presented the obvious core-shell structure, and the shell was amorphous TiO2 which could protect the active center from the SO2 erosion. The catalyst showed high activity and stability, excellent N2 selectivity and superior SO2 resistance and H2O tolerance. Characterizations such as TEM, HR-TEM, XRD, BET, XPS, NH3-TPD, and H2-TPR were carried out. The results indicated that the catalyst had large surface area and the active sites were well dispersed on the surface. The NH3-TPD, H2-TPR and XPS results implied that its increased SCR activity might be due to the enhancement of NH3 chemisorption and the increase of active oxygen species, both of which were conductive to NH3 activation. The excellent catalytic performance suggests that it is a promising candidate for SCR catalyst.
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Affiliation(s)
- Bingjie Huang
- Department of Environmental Science and Engineering, Nanjing Normal University, Nanjing 210023, China; Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, Nanjing 210023, China.
| | - Danqing Yu
- School of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Zhongyi Sheng
- Department of Environmental Science and Engineering, Nanjing Normal University, Nanjing 210023, China; Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, Nanjing 210023, China.
| | - Liu Yang
- Department of Environmental Science and Engineering, Nanjing Normal University, Nanjing 210023, China; Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, Nanjing 210023, China
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82
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Chen X, Zhang C, Kalenczuk RJ, Chu PK, Zhang D, Tang T, Mijowska E. Porous nanopeapod Pd catalyst with excellent stability and efficiency. Chem Commun (Camb) 2017; 53:740-742. [PMID: 27990532 DOI: 10.1039/c6cc08598a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Porous Pd@m-C/SiO2 nanopeapods are prepared by a nanoconfinement method. The Pd nanoparticles show high efficiency and stability in chemical reactions such as reduction of nitrobenzene by H2 and reduction of NO by NH3. The high catalytic activity is attributed to the unique peapod structure, mesoporous wall, and large specific surface area on Pd@m-C/SiO2 rendering the Pd nanoparticles highly active in chemical reactions.
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Affiliation(s)
- Xuecheng Chen
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Renmin Road 5625, 130022, Changchun, China. and Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, ul. Pulaskiego 10, 70-322, Szczecin, Poland
| | - Chao Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Renmin Road 5625, 130022, Changchun, China.
| | - Ryszard J Kalenczuk
- Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, ul. Pulaskiego 10, 70-322, Szczecin, Poland
| | - Paul K Chu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Dengsong Zhang
- Research Center of Nano Science and Technology, Shanghai University, Shanghai 200444, China.
| | - Tao Tang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Science, Renmin Road 5625, 130022, Changchun, China.
| | - Ewa Mijowska
- Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, ul. Pulaskiego 10, 70-322, Szczecin, Poland
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83
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Zhao X, Cao Y, Li H, Zhang J, Shi L, Zhang D. Sc promoted and aerogel confined Ni catalysts for coking-resistant dry reforming of methane. RSC Adv 2017. [DOI: 10.1039/c6ra27266e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sc promoted and aerogel confined Ni catalysts were developed for coking-resistant dry reforming of methane.
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Affiliation(s)
- Xiaoyuan Zhao
- Research Center of Nano Science and Technology
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Yang Cao
- Research Center of Nano Science and Technology
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Hongrui Li
- Research Center of Nano Science and Technology
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Jianping Zhang
- Research Center of Nano Science and Technology
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Liyi Shi
- Research Center of Nano Science and Technology
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Dengsong Zhang
- Research Center of Nano Science and Technology
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
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84
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Liu R, Xu Y, Ye F, Jia F, Xu R. Influence of transition metal (Fe, Co, and Ag) doping on the MnOx–CeO2/Ti-bearing blast furnace slag catalyst for selective catalytic reduction of NOx with NH3 at low temperature. NEW J CHEM 2017. [DOI: 10.1039/c7nj00775b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mn–Ce based catalysts supported on Ti-bearing blast furnace slag (industrial solid waste) and the doping of transition metals were studied.
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Affiliation(s)
- Rong Liu
- School of Environment
- Nanjing Normal University
- Nanjing
- China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application
| | - Yifan Xu
- School of Environment
- Nanjing Normal University
- Nanjing
- China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application
| | - Fei Ye
- Nanjing Institute of Environmental Sciences of the Ministry of Environmental Protection
- Solid waste department
- Nanjing
- China
| | - Feng Jia
- Nanoparticle and Air Quality Laboratory
- Institute of Environmental Engineering
- National Chiao Tung University
- China
| | - Rui Xu
- School of Environment
- Nanjing Normal University
- Nanjing
- China
- Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application
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85
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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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86
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Chen Y, Du N, Zhang H, Yang D. Porous Si@C coaxial nanotubes: layer-by-layer assembly on ZnO nanorod templates and application to lithium-ion batteries. CrystEngComm 2017. [DOI: 10.1039/c6ce02595a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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87
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Xu J, Li H, Liu Y, Huang L, Zhang J, Shi L, Zhang D. In situ fabrication of porous MnCoxOy nanocubes on Ti mesh as high performance monolith de-NOx catalysts. RSC Adv 2017. [DOI: 10.1039/c7ra03182c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Porous MnCoxOy nanocubes on Ti mesh as monolith catalysts present enhanced de-NOx performance.
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Affiliation(s)
- Jing Xu
- Research Center of Nano Science and Technology
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Hongrui Li
- Research Center of Nano Science and Technology
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Yan Liu
- Research Center of Nano Science and Technology
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Lei Huang
- Research Center of Nano Science and Technology
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Jianping Zhang
- Research Center of Nano Science and Technology
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Liyi Shi
- Research Center of Nano Science and Technology
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- China
| | - Dengsong Zhang
- Research Center of Nano Science and Technology
- School of Material Science and Engineering
- Shanghai University
- Shanghai 200444
- China
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88
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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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89
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Promoting catalytic performances of Ni-Mn spinel for NH3-SCR by treatment with SO2 and H2O. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.07.013] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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90
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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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91
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Li Y, Wan Y, Li Y, Zhan S, Guan Q, Tian Y. Low-Temperature Selective Catalytic Reduction of NO with NH₃ over Mn₂O₃-Doped Fe₂O₃ Hexagonal Microsheets. ACS APPLIED MATERIALS & INTERFACES 2016; 8:5224-33. [PMID: 26854574 DOI: 10.1021/acsami.5b10264] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Mn2O3-doped Fe2O3 hexagonal microsheets were prepared for the low-temperature selective catalytic reduction (SCR) of NO with NH3. These hexagonal microsheets were characterized by SEM, TEM, XRD, BET, XPS, NH3-TPD, H2-TPR, and in situ DRIFT and were shown to exhibit a considerable uniform hexagonal microsheet structure and excellent low temperature SCR efficiency. When doped with different Mn molar ratios, Mn2O3 was detected in the Fe2O3 hexagonal microsheets based on the XRD results without the presence of other MnOX species. In addition, the hexagonal microsheets with a Mn/Fe molar ratio of 0.2 showed the best SCR removal performance among the materials, where a 98% NO conversion ratio at 200 °C at a space velocity of 30,000 h(-1) was obtained. Meanwhile, excellent tolerances to H2O and SO2, as well as high thermal stability, were obtained in Mn2O3-doped Fe2O3 hexagonal microsheets. Moreover, on the basis of the XPS and in situ DRIFT results, it can be suggested that coupled Mn2O3 nanocrystals played a key role at low temperatures and produced a possible redox reaction mechanism in the SCR process.
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Affiliation(s)
- Yi Li
- Department of Chemistry, Tianjin University , Tianjin 300072, P.R. China
| | - Yuan Wan
- Department of Chemistry, Tianjin University , Tianjin 300072, P.R. China
| | - Yanping Li
- Department of Chemistry, Tianjin University , Tianjin 300072, P.R. China
| | - Sihui Zhan
- College of Environmental Science and Engineering, Nankai University , Tianjin 300071, P.R. China
| | - Qingxin Guan
- College of Environmental Science and Engineering, Nankai University , Tianjin 300071, P.R. China
| | - Yang Tian
- Department of Chemistry, Capital Normal University , Beijing 100875, P.R. China
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92
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Fang C, Shi L, Li H, Huang L, Zhang J, Zhang D. Creating hierarchically macro-/mesoporous Sn/CeO2for the selective catalytic reduction of NO with NH3. RSC Adv 2016. [DOI: 10.1039/c6ra18339e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hierarchically macro-/mesoporous Sn/CeO2was created for the selective catalytic reduction of NO with NH3.
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Affiliation(s)
- Cheng Fang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Liyi Shi
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Hongrui Li
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Lei Huang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Jianping Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
| | - Dengsong Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- China
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93
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Zhang Z, Chen L, Li Z, Li P, Yuan F, Niu X, Zhu Y. Activity and SO2 resistance of amorphous CeaTiOx catalysts for the selective catalytic reduction of NO with NH3: in situ DRIFT studies. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00475j] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Amorphous Ce0.3TiOx exhibits a high activity and sulfur resistance for NH3-SCR of NO due to the strong interactions between Ce and Ti.
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Affiliation(s)
- Zhiping Zhang
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- PR China
| | - Liqiang Chen
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- PR China
| | - Zhibin Li
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- PR China
| | - Pengying Li
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- PR China
| | - Fulong Yuan
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- PR China
| | - Xiaoyu Niu
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- PR China
| | - Yujun Zhu
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- PR China
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94
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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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95
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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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96
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Deng S, Zhuang K, Xu B, Ding Y, Yu L, Fan Y. Promotional effect of iron oxide on the catalytic properties of Fe–MnOx/TiO2 (anatase) catalysts for the SCR reaction at low temperatures. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01217a] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The surface interaction of the iron-improved MnOx/TiO2 (anatase) catalyst for the selective catalytic reduction of nitric oxide was studied. The role of iron was investigated through detailed experiments.
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Affiliation(s)
- Shengcai Deng
- Key Laboratory of Mesoscopic Chemistry of MOE
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Jiangsu Provincial Key Laboratory of Nanotechnology
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Ke Zhuang
- Key Laboratory of Mesoscopic Chemistry of MOE
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Jiangsu Provincial Key Laboratory of Nanotechnology
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Bolian Xu
- Key Laboratory of Mesoscopic Chemistry of MOE
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Jiangsu Provincial Key Laboratory of Nanotechnology
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Yuanhua Ding
- Jiangsu Key Laboratory of Environmental Materials and Environmental Engineering
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- China
| | - Lei Yu
- Key Laboratory of Mesoscopic Chemistry of MOE
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Jiangsu Provincial Key Laboratory of Nanotechnology
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Yining Fan
- Key Laboratory of Mesoscopic Chemistry of MOE
- Jiangsu Key Laboratory of Vehicle Emissions Control
- Jiangsu Provincial Key Laboratory of Nanotechnology
- School of Chemistry and Chemical Engineering
- Nanjing University
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97
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Zhang P, Sun Y, Su W, Wei Y, Liu J. Low-temperature selective catalytic reduction of NO with NH3 over Ni–Mn–Ox catalysts. RSC Adv 2016. [DOI: 10.1039/c6ra21267k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of Ni(n)–MnOx catalysts with high activity for the low temperature NH3-SCR have been synthesized by a hard template method.
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Affiliation(s)
- Peipei Zhang
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Yan Sun
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Wei Su
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Yajuan Wei
- Department of Chemistry
- School of Science
- Tianjin University
- Tianjin 300350
- P. R. China
| | - Jia Liu
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300350
- P. R. China
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98
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Zhan S, Shi Q, Zhang Y, Li Y, Tian Y. Preparation of novel CeMo(x) hollow microspheres for low-temperature SCR removal of NOx with NH3. RSC Adv 2016. [DOI: 10.1039/c6ra10720f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of novel Mo doped CeO2 hollow microspheres have been successfully synthesized using carbon microspheres as templates, which were characterized by XRD, SEM, TEM, BET and used to remove NOx upon NH3-SCR at lower temperature.
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Affiliation(s)
- Sihui Zhan
- College of Environmental Science and Engineering
- Nankai University
- Tianjin 300071
- P. R. China
| | - Qiang Shi
- College of Environmental Science and Engineering
- Nankai University
- Tianjin 300071
- P. R. China
| | - Yu Zhang
- College of Environmental Science and Engineering
- Nankai University
- Tianjin 300071
- P. R. China
| | - Yi Li
- Department of Chemistry
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yang Tian
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
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99
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Li Y, Li Y, Wan Y, Zhan S, Guan Q, Tian Y. Structure–performance relationships of MnO2 nanocatalyst for the low-temperature SCR removal of NOX under ammonia. RSC Adv 2016. [DOI: 10.1039/c6ra03108k] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
To investigate the corresponding relationship between catalytic efficiency and structure, MnO2 nanomaterials (nanospheres, nanosheets, nanorods) have been prepared successfully, and were thoroughly characterized by SEM and TEM.
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Affiliation(s)
- Yi Li
- Department of Chemistry
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yanping Li
- Department of Chemistry
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yuan Wan
- Department of Chemistry
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Sihui Zhan
- College of Environmental Science and Engineering
- Nankai University
- Tianjin 300071
- P. R. China
| | - Qingxin Guan
- College of Environmental Science and Engineering
- Nankai University
- Tianjin 300071
- P. R. China
| | - Yang Tian
- Department of Chemistry
- Capital Normal University
- Beijing 100048
- P. R. China
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100
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Zhao X, Huang L, Namuangruk S, Hu H, Hu X, Shi L, Zhang D. Morphology-dependent performance of Zr–CeVO4/TiO2 for selective catalytic reduction of NO with NH3. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00326e] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The morphology-dependent performance of Zr–CeVO4/TiO2 was demonstrated for the selective catalytic reduction of NO with NH3.
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Affiliation(s)
- Xin Zhao
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Lei Huang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Supawadee Namuangruk
- National Nanotechnology Center
- National Science and Technology Development Agency
- Thailand
| | - Hang Hu
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Xiaonan Hu
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Liyi Shi
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Dengsong Zhang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
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