101
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Improved catalytic activity and N2 selectivity of Fe–Mn–O x catalyst for selective catalytic reduction of NO by NH3 at low temperature. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3255-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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102
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Zhang P, Pan WG, Guo RT, Liu SM, Li MY, Qin L, Pan XQ, Ye XF. A study on simultaneous catalytic ozonation of Hg0 and NO using Mn–TiO2 catalyst at low flue gas temperatures. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0388-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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103
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Sulfur and Water Resistance of Mn-Based Catalysts for Low-Temperature Selective Catalytic Reduction of NOx: A Review. Catalysts 2018. [DOI: 10.3390/catal8010011] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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104
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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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105
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Wang X, Zhao W, Zhang T, Zhang Y, Jiang L, Yin S. Facile fabrication of shape-controlled CoxMnyOβ nanocatalysts for benzene oxidation at low temperatures. Chem Commun (Camb) 2018; 54:2154-2157. [DOI: 10.1039/c8cc00023a] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a new strategy for the design and construction of CoxMnyOβ for C6H6 oxidation, a representative VOC.
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Affiliation(s)
- Xiuyun Wang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Weitao Zhao
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Tianhua Zhang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Yongfan Zhang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Lilong Jiang
- National Engineering Research Center of Chemical Fertilizer Catalyst
- Fuzhou University
- Fuzhou
- China
| | - Shuangfen Yin
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- China
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106
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Han Y, Mu J, Li X, Gao J, Fan S, Tan F, Zhao Q. Triple-shelled NiMn2O4 hollow spheres as an efficient catalyst for low-temperature selective catalytic reduction of NOx with NH3. Chem Commun (Camb) 2018; 54:9797-9800. [DOI: 10.1039/c8cc03625j] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unique triple-shelled NiMn2O4 hollow spheres are fabricated by a facile solvothermal method.
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Affiliation(s)
- Yanling Han
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian
- China
| | - Jincheng Mu
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian
- China
| | - Xinyong Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian
- China
| | - Jinsuo Gao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian
- China
| | - Shiying Fan
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian
- China
| | - Feng Tan
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian
- China
| | - Qidong Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian
- China
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107
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Fan J, Lv M, Luo W, Ran X, Deng Y, Zhang WX, Yang J. Exposed metal oxide active sites on mesoporous titania channels: a promising design for low-temperature selective catalytic reduction of NO with NH3. Chem Commun (Camb) 2018; 54:3783-3786. [DOI: 10.1039/c8cc01003j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A subtle catalyst is designed with CuO and MnO2 active centers on the surface of mesoporous titania for low-temperature SCR.
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Affiliation(s)
- Jianwei Fan
- College of Environmental Science and Engineering
- State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Menghua Lv
- College of Environmental Science and Engineering
- State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Wei Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Xianqiang Ran
- College of Environmental Science and Engineering
- State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Yonghui Deng
- Department of Chemistry
- State Key Laboratory of Molecular Engineering of Polymers
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- iChEM
- Fudan University
| | - Wei-xian Zhang
- College of Environmental Science and Engineering
- State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Jianping Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
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108
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Yang L, You X, Sheng Z, Ma D, Yu D, Xiao X, Wang S. The promoting effect of noble metal (Rh, Ru, Pt, Pd) doping on the performances of MnOx–CeO2/graphene catalysts for the selective catalytic reduction of NO with NH3at low temperatures. NEW J CHEM 2018. [DOI: 10.1039/c8nj01417e] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh, Ru, Pt or Pd doping on MnOx–CeO2/graphene catalysts increased the amount of chemisorbed oxygen and surface acid sites.
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Affiliation(s)
- Liu Yang
- School of Environment
- Nanjing Normal University
- Nanjing 210023
- China
| | - Xiaochen You
- School of Environment
- Nanjing Normal University
- Nanjing 210023
- China
| | - Zhongyi Sheng
- School of Environment
- Nanjing Normal University
- Nanjing 210023
- China
- Suzhou Industrial Technology Research Institute of Zhejiang University
| | - Dingren Ma
- School of Environment
- Nanjing Normal University
- Nanjing 210023
- China
| | - Danqing Yu
- School of Chemical Engineering and Technology
- Wuhan University of Science and Technology
- Wuhan 430081
- China
| | - Xiang Xiao
- Suzhou Industrial Technology Research Institute of Zhejiang University
- Suzhou 215163
- China
| | - Sheng Wang
- State Power Environmental Protection Research Institute
- Nanjing 210031
- China
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109
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Zhang B, Zhang S, Liu B, Shen H, Li L. High N2 selectivity in selective catalytic reduction of NO with NH3 over Mn/Ti–Zr catalysts. RSC Adv 2018; 8:12733-12741. [PMID: 35541254 PMCID: PMC9079636 DOI: 10.1039/c8ra00336j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 03/19/2018] [Indexed: 11/29/2022] Open
Abstract
A series of Mn-based catalysts were prepared by a wet impregnation method for the selective catalytic reduction (SCR) of NO with NH3. The Mn/Ti–Zr catalyst had more surface area, Lewis acid sites, and Mn4+ on its surface, and showed excellent activity and high N2 selectivity in a wide temperature range. NH3 and NO oxidation was investigated to gain insight into NO reduction and N2O formation. The formation of N2O was primarily dominated by the reaction of NO with NH3 in the presence of O2via the Eley–Rideal mechanism. An intimate synergistic effect existed between the Mn-based and the Ti–Zr support. It was demonstrated that the Ti–Zr support greatly promoted the catalytic performance of Mn-based catalysts. The Ti–Zr support greatly promotes the catalytic performance of Mn-based catalysts.![]()
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Affiliation(s)
- Bolin Zhang
- Institute for Advanced Materials and Technology
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Shengen Zhang
- Institute for Advanced Materials and Technology
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Bo Liu
- Institute for Advanced Materials and Technology
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Hanlin Shen
- Institute for Advanced Materials and Technology
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Lin Li
- Institute for Advanced Materials and Technology
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
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110
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Yang Y, Wang M, Tao Z, Liu Q, Fei Z, Chen X, Zhang Z, Tang J, Cui M, Qiao X. Mesoporous Mn–Ti amorphous oxides: a robust low-temperature NH3-SCR catalyst. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01313f] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mn–Ti amorphous oxides prepared by the combinedin situdeposition and freeze-drying strategy exhibited excellent activities and stability in low-temperature NH3-SCR.
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Affiliation(s)
- Yanran Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing 2100909
- China
- College of chemical Engineering
| | - Minghong Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing 2100909
- China
- College of chemical Engineering
| | - Zuliang Tao
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing 2100909
- China
- College of chemical Engineering
| | - Qing Liu
- College of chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- China
| | - Zhaoyang Fei
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing 2100909
- China
- College of chemical Engineering
| | - Xian Chen
- College of chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- China
| | - Zhuxiu Zhang
- College of chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- China
| | - Jihai Tang
- College of chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- China
| | - Mifen Cui
- College of chemical Engineering
- Nanjing Tech University
- Nanjing 210009
- China
| | - Xu Qiao
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing 2100909
- China
- College of chemical Engineering
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111
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Promotional effect of Ce on the SCR of NO with NH3 at low temperature over MnO x supported by nitric acid-modified activated carbon. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3194-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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112
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The synergistic effects of cerium presence in the framework and the surface resistance to SO 2 and H 2 O in NH 3 -SCR. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2017.07.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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113
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Hu X, Shi Q, Zhang H, Wang P, Zhan S, Li Y. NH 3 -SCR performance improvement over Mo modified Mo(x)-MnO x nanorods at low temperatures. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.06.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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114
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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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115
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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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116
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Fe–Mn Mixed Oxide Catalysts Synthesized by One-Step Urea-Precipitation Method for the Selective Catalytic Reduction of NO
x
with NH3 at Low Temperatures. Catal Letters 2017. [DOI: 10.1007/s10562-017-2209-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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117
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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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118
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Metal-organic framework loaded manganese oxides as efficient catalysts for low-temperature selective catalytic reduction of NO with NH3. Front Chem Sci Eng 2017. [DOI: 10.1007/s11705-017-1668-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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119
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Abstract
Governing the process and outcome of chemical reactions is the most important aim of catalytic chemistry. The confinement of active sites inside nanosized spaces provides a powerful strategy to achieve this goal. Reacting molecules (reactants, intermediates, and products of a reaction) and nanomaterials (metal/metal-oxide nanoparticles) confined inside nanoreactors have been observed to exhibit modified behaviors and properties with respect to their unconfined counterparts. Typically, catalysts confined in zeolites, mesoporous materials, metal-organic frameworks, and nanotubes are obtained by traditional liquid-phase methods. However, excess metals or undesired solvents and other reagents must be removed. It is also difficult to precisely regulate the confined nanostructures and assemble multifunctional sites in the confined nanospaces. Atomic layer deposition (ALD) provides a controllable method to fabricate confined catalysts due to its outstanding advantages. In this Account, we describe our progress in the design and properties of confined nanocatalysts by ALD. ALD is an elegant method to directly deposit highly dispersed metal or oxide species into porous materials, including zeolites and mesoporous materials. We deposited Pt nanoclusters in the micropores of a KL zeolite with precisely controlled size by ALD. We also introduced CoOx nanoclusters into mesoporous SBA-15. We have reported pioneering works on the synthesis of confined nanoparticles with metal-in-nanotube structures by a template-assisted ALD method. Confined Cu nanoparticles were prepared by reducing CuO nanowires coated with Al2O3, TiO2, or alucone layers by ALD. Confined Cu and Au nanoparticles were also prepared starting from the corresponding metal nanowires with the assistance of sacrificial layers produced by ALD. In a more facile strategy, Au nanoparticles confined in Al2O3 nanotubes were produced using a sacrificial template by ALD. Furthermore, we synthesized a multiply confined Ni-based nanocatalyst through a template-assisted ALD method. We assembled multiple interfaces (Ni/Al2O3 and Pt/TiO2) in a confined nanospace for tandem reactions by template-assisted ALD. The synergistic effect of two interfaces enhanced the tandem reaction, and the confined nanospace favored the instant transfer of intermediates between the two interfaces. In addition, porous TiO2 nanotubes with spatially separated Pt and CoOx cocatalysts were also produced by ALD. The confined catalysts can be further treated by ALD. We used ALD to modify the mesoporous SBA-15 support to precisely tune the active species-support interaction. In addition to the support, the confined metal nanoparticles can also be coated with an ultrathin oxide layer by ALD to further improve their catalytic activities. Moreover, the structure and size of the confined nanospace can be tuned precisely by ALD. Overall, ALD has exhibited noteworthy applications in and will provide new opportunities for the design and synthesis of highly effective confined catalysts.
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Affiliation(s)
- Zhe Gao
- State Key Laboratory of Coal
Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taoyuan South Road 27, Taiyuan 030001, China
| | - Yong Qin
- State Key Laboratory of Coal
Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taoyuan South Road 27, Taiyuan 030001, China
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120
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121
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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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122
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Effect of Ce/Y Addition on Low-Temperature SCR Activity and SO2 and H2O Resistance of MnOx/ZrO2/MWCNTs Catalysts. Catalysts 2017. [DOI: 10.3390/catal7060181] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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123
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Fan Z, Shi JW, Gao C, Gao G, Wang B, Niu C. Rationally Designed Porous MnO x-FeO x Nanoneedles for Low-Temperature Selective Catalytic Reduction of NO x by NH 3. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16117-16127. [PMID: 28467037 DOI: 10.1021/acsami.7b00739] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this work, a novel porous nanoneedlelike MnOx-FeOx catalyst (MnOx-FeOx nanoneedles) was developed for the first time by rationally heat-treating metal-organic frameworks including MnFe precursor synthesized by hydrothermal method. A counterpart catalyst (MnOx-FeOx nanoparticles) without porous nanoneedle structure was also prepared by a similar procedure for comparison. The two catalysts were systematically characterized by scanning and transmission electron microscopy, X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy, hydrogen temperature-programmed reduction, ammonia temperature-programmed desorption, and in situ diffuse reflectance infrared Fourier transform spectroscopy (in situ DRIFT), and their catalytic activities were evaluated by selective catalytic reduction (SCR) of NOx by NH3. The results showed that the rationally designed MnOx-FeOx nanoneedles presented outstanding low-temperature NH3-SCR activity (100% NOx conversion in a wide temperature window from 120 to 240 °C), high selectivity for N2 (nearly 100% N2 selectivity from 60 to 240 °C), and excellent water resistance and stability in comparison with the counterpart MnOx-FeOx nanoparticles. The reasons can be attributed not only to the unique porous nanoneedle structure but also to the uniform distribution of MnOx and FeOx. More importantly, the desired Mn4+/Mnn+ and Oα/(Oα + Oβ) ratios, as well as rich redox sites and abundant strong acid sites on the surface of the porous MnOx-FeOx nanoneedles, also contribute to these excellent performances. In situ DRIFT suggested that the NH3-SCR of NO over MnOx-FeOx nanoneedles follows both Eley-Rideal and Langmuir-Hinshelwood mechanisms.
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Affiliation(s)
- Zhaoyang Fan
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University , Xi'an 710049, China
| | - Jian-Wen Shi
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University , Xi'an 710049, China
| | - Chen Gao
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University , Xi'an 710049, China
| | - Ge Gao
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University , Xi'an 710049, China
| | - Baorui Wang
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University , Xi'an 710049, China
| | - Chunming Niu
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University , Xi'an 710049, China
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124
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Boningari T, Somogyvari A, Smirniotis PG. Ce-Based Catalysts for the Selective Catalytic Reduction of NOx in the Presence of Excess Oxygen and Simulated Diesel Engine Exhaust Conditions. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b00045] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thirupathi Boningari
- Chemical
Engineering Program, Department of Biomedical, Chemical and Environmental
Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
| | - Arpad Somogyvari
- Catalyst
Elements,
Cummins Emission Solutions, Columbus, Indiana 47202, United States
| | - Panagiotis G. Smirniotis
- Chemical
Engineering Program, Department of Biomedical, Chemical and Environmental
Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
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125
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Lee T, Liou S, Bai H. Comparison of titania nanotubes and titanium dioxide as supports of low-temperature selective catalytic reduction catalysts under sulfur dioxide poisoning. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2017; 67:292-305. [PMID: 27649768 DOI: 10.1080/10962247.2016.1231144] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 08/18/2016] [Indexed: 06/06/2023]
Abstract
A series of iron-manganese oxide catalysts supported on TiO2 and titanium nanotubes (TNTs) were studied for low temperature selective catalytic reduction (SCR) of NO with NH3 in the presence of SO2. The results showed that the specific surface area and the amount of Brønsted acid sites were highly correlated. The results also demonstrated that higher Mn4+/Mn3+ ratios and larger specific surface areas might be the main reasons for the excellent performance of MnFe-TNTs catalyst after SO2 poisoning. The SO2 poisoning effect could be minimized by reducing the GHSV, increasing the reaction temperature, or increasing the [NH3]/[NO] molar ratio. The results also indicated that the formation of ammonium sulfate had a stronger effect on the NO conversion efficiency as compared to the formation of metal sulfate. Thus operating the low temperature SCR at above 230 oC to avoid the formation of ammonium sulfate would be the priority choice when SO2 poisoning is a concerned issue. Implications: Low-temperature selective catalytic reduction (SCR) has attracted increasing attention due to that it can reduce the energy consumption for the SCR process employed in industries such as steel plants and glass manufacturing plants. However, it also suffers from the sulfur dioxide (SO2) poisoning problem. This study investigates the possibility of using titania nanotubes (TNTs) as the support of Mn/Fe bimetal oxide catalysts for low-temperature SCR to reduce the SO2 poisoning. The results indicated that the MnFe-TNT catalyst can tolerate SO2 for a longer time as compared with the MnFe-TiO2 catalyst.
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Affiliation(s)
- TsungYu Lee
- a Institute of Environmental Engineering, National Chiao Tung University , Hsinchu , Taiwan , Republic of China
| | - Sihyu Liou
- a Institute of Environmental Engineering, National Chiao Tung University , Hsinchu , Taiwan , Republic of China
| | - Hsunling Bai
- a Institute of Environmental Engineering, National Chiao Tung University , Hsinchu , Taiwan , Republic of China
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126
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Yu C, Chen F, Dong L, Liu X, Huang B, Wang X, Zhong S. Manganese-rich MnSAPO-34 molecular sieves as an efficient catalyst for the selective catalytic reduction of NO x with NH 3: one-pot synthesis, catalytic performance, and characterization. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:7499-7510. [PMID: 28116621 DOI: 10.1007/s11356-017-8375-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 01/03/2017] [Indexed: 06/06/2023]
Abstract
Manganese-rich MnSAPO-34 molecular sieves were prepared by one-pot synthesis method for NO x abatement using the ammonia-selective catalytic reduction (NH3-SCR) technology and characterized using ICP, BET, XRD, FE-SEM, H2-TPR, NH3-TPD, XPS, and DR UV-Vis analyses. The experimental results indicate that the Mn content and chemical state, as well as the surface acidity, of the MnSAPO-34 molecular sieves significantly enhance their DeNO x efficiency at low temperatures (ca. 200-300 °C). The manganese-rich MnSAPO-34 was synthesized using a combination of triethylamine and diisopropylamine as the structural directing agents and high Mn loading (n(MnO)/n(P2O5) = 0.4). The resulting catalyst exhibits the highest activity among all of the samples with a NO x conversion value of nearly 95% and a N2 selectivity that is higher than 90% at 220-400 °C. In addition, this catalyst presents higher NO x conversion than the conventional V2O5-WO3/TiO2 catalysts and other SAPO-based catalysts below 300 °C. Furthermore, the analytical results indicate that the manganese species in the catalyst are mainly in the form of a framework Mn(IV), which could play a significant role in the NH3-SCR process as the specific active species. The results suggest that controlling the types and content of the organic amine templates and variations in the surface acidity of the catalysts may significantly enhance the SCR activity at lower temperatures.
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Affiliation(s)
- Chenglong Yu
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, People's Republic of China
| | - Feng Chen
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, People's Republic of China
| | - Lifu Dong
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, People's Republic of China
| | - Xiaoqing Liu
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, People's Republic of China
| | - Bichun Huang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, People's Republic of China.
- Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, People's Republic of China.
| | - Xinnan Wang
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, People's Republic of China
| | - Shengbang Zhong
- School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, 510006, People's Republic of China
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127
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Xu Q, Su R, Cao L, Li Y, Yang C, Luo Y, Street J, Jiao P, Cai L. Facile preparation of high-performance Fe-doped Ce–Mn/TiO2 catalysts for the low-temperature selective catalytic reduction of NOx with NH3. RSC Adv 2017. [DOI: 10.1039/c7ra07854d] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
A Ce–Mn–Fe/TiO2 catalyst has been successfully prepared using a single impregnation method with excellent low-temperature NH3-SCR activity.
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Affiliation(s)
- Quan Xu
- State Key Laboratory of Heavy Oil Processing
- Institute of New Energy
- China University Petroleum
- Beijing
- China
| | - Rigu Su
- State Key Laboratory of Heavy Oil Processing
- Institute of New Energy
- China University Petroleum
- Beijing
- China
| | - Li Cao
- State Key Laboratory of Heavy Oil Processing
- Institute of New Energy
- China University Petroleum
- Beijing
- China
| | - Yeqing Li
- State Key Laboratory of Heavy Oil Processing
- Institute of New Energy
- China University Petroleum
- Beijing
- China
| | - Chuanyao Yang
- Personalized Drug Therapy Key Laboratory of Sichuan Province
- Hospital of the University of Electronic Science and Technology of China
- Sichuan Provincial People's Hospital
- Chengdu
- P. R. China
| | - Yan Luo
- Department of Chemical Engineering
- West Virginia University
- Morgantown
- USA
| | - Jason Street
- Department of Sustainable Bioproducts
- Mississippi State University
- USA
| | - Pengcheng Jiao
- Department of Civil and Environmental Engineering
- Michigan State University
- East Lansing
- USA
| | - Lulu Cai
- Personalized Drug Therapy Key Laboratory of Sichuan Province
- Hospital of the University of Electronic Science and Technology of China
- Sichuan Provincial People's Hospital
- Chengdu
- P. R. China
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128
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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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129
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Peng L, Huan L, Huayan L, Yinfei C, Zekai Z. Influence of tungsten on the NH3-SCR activity of MnWOx/TiO2 catalysts. RSC Adv 2017. [DOI: 10.1039/c7ra00427c] [Citation(s) in RCA: 8] [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 bulk MnWOx and supported MnWOx/TiO2 catalysts with MnWO4 structure were prepared via self-propagating high-temperature synthesis (SHS), co-precipitation and impregnation methods.
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Affiliation(s)
- Lu Peng
- Department of Energy Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Li Huan
- Department of Energy Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Liu Huayan
- Department of Energy Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Chen Yinfei
- Department of Energy Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
| | - Zhang Zekai
- Department of Energy Chemical Engineering
- Zhejiang University of Technology
- Hangzhou 310014
- China
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130
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Zhang X, Shen B, Zhang X, Wang F, Chi G, Si M. A comparative study of manganese–cerium doped metal–organic frameworks prepared via impregnation and in situ methods in the selective catalytic reduction of NO. RSC Adv 2017. [DOI: 10.1039/c6ra25413f] [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
Impregnation and in situ doping were applied for the preparation of MnCe loaded MOFs and the behavior of the catalysts in the SCR was investigated.
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Affiliation(s)
- Xiao Zhang
- School of Energy and Environmental Engineering
- Hebei University of Technology
- Tianjin
- China
- College of Environmental Science and Engineering
| | - Boxiong Shen
- School of Energy and Environmental Engineering
- Hebei University of Technology
- Tianjin
- China
| | - Xiaoqi Zhang
- School of Energy and Environmental Engineering
- Hebei University of Technology
- Tianjin
- China
| | - Fumei Wang
- School of Energy and Environmental Engineering
- Hebei University of Technology
- Tianjin
- China
| | - Guilong Chi
- College of Environmental Science and Engineering
- Nankai University
- Tianjin
- China
| | - Meng Si
- School of Energy and Environmental Engineering
- Hebei University of Technology
- Tianjin
- China
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131
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Addition of manganese to alumina and its influence on the formation of supported NiMo catalysts for dibenzothiophene hydrodesulfurization application. J Catal 2016. [DOI: 10.1016/j.jcat.2016.08.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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132
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Boningari T, Smirniotis PG. Impact of nitrogen oxides on the environment and human health: Mn-based materials for the NO x abatement. Curr Opin Chem Eng 2016. [DOI: 10.1016/j.coche.2016.09.004] [Citation(s) in RCA: 237] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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133
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134
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Qin Y, Sun L, Zhang D, Huang L. Role of ceria in the improvement of SO2 resistance of LaxCe1−xFeO3 catalysts for catalytic reduction of NO with CO. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.03.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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135
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Huang L, Zha K, Namuangruk S, Junkaew A, Zhao X, Li H, Shi L, Zhang D. Promotional effect of the TiO2 (001) facet in the selective catalytic reduction of NO with NH3: in situ DRIFTS and DFT studies. Catal Sci Technol 2016. [DOI: 10.1039/c6cy02026g] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
NO on anatase-TiO2 (001) was mainly in the form of NO2 which could trigger the subsequent ‘fast SCR’ reaction.
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Affiliation(s)
- Lei Huang
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Kaiwen Zha
- 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
| | - Anchalee Junkaew
- National Nanotechnology Center
- National Science and Technology Development Agency
- Thailand
| | - Xin Zhao
- Research Center of Nano Science and Technology
- Shanghai University
- Shanghai 200444
- PR China
| | - Hongrui Li
- 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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136
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Liu Z, Liu Y, Chen B, Zhu T, Ma L. Novel Fe–Ce–Ti catalyst with remarkable performance for the selective catalytic reduction of NOx by NH3. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02278a] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The redox cycle (Ce4+ + Fe2+ ↔ Ce3+ + Fe3+) over the Fe–Ce–Ti catalyst contributes to the activation of NOx and NH3 and thus the formation of reaction intermediates, leading to the high catalytic performance for the NH3-SCR of NOx.
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Affiliation(s)
- Zhiming Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yuxian Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Biaohua Chen
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Tianle Zhu
- School of Space and Environment
- Beihang University
- Beijing 100191
- China
| | - Lingling Ma
- Division of Nuclear Technology and Applications
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing 100049
- China
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137
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Liu Z, Liu H, Zeng H, Xu Q. A novel Ce–Sb binary oxide catalyst for the selective catalytic reduction of NOx with NH3. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01756h] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synergetic effect between Sb and Ce not only increases the surface acidity of the catalyst but also enhances the redox property, both of which contribute to improving NH3-SCR activity.
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Affiliation(s)
- Zhiming Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Haiyan Liu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Hui Zeng
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Qi Xu
- Jiangsu Collaborative Innovation Center for Ecological Building Materials and Environmental Protection Equipments
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province
- Yancheng Institute of Technology
- Yancheng 224051
- China
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138
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Mandal S, Maity S, Saha S, Banerjee B. MnOx supported on a TiO2@SBA-15 nanoreactor used as an efficient catalyst for one-pot synthesis of imine by oxidative coupling of benzyl alcohol and aniline under atmospheric air. RSC Adv 2016. [DOI: 10.1039/c6ra14941c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mesoporous silica (SBA-15) encapsulated TiO2 nanoreactor used as support for MnOx and it (MnOx/TiO2@SBA-15) acts as catalyst for the one-pot synthesis of imine by oxidative coupling between benzyl alcohol & aniline in the presence of atmospheric air.
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Affiliation(s)
- Sandip Mandal
- Research Group of Gasification and Liquefaction
- CSIR – Central Institute of Mining and Fuel Research (DC)
- Dhanbad-828108
- India
| | - Sudip Maity
- Research Group of Gasification and Liquefaction
- CSIR – Central Institute of Mining and Fuel Research (DC)
- Dhanbad-828108
- India
| | - Sujan Saha
- Research Group of Gasification and Liquefaction
- CSIR – Central Institute of Mining and Fuel Research (DC)
- Dhanbad-828108
- India
| | - Biplab Banerjee
- Department of Material Science
- Indian Association for Cultivation of Science
- Kolkata-700032
- India
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139
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Xu T, Wang C, Wu X, Zhao B, Chen Z, Weng D. Modification of MnCo2Ox catalysts by NbOx for low temperature selective catalytic reduction of NO with NH3. RSC Adv 2016. [DOI: 10.1039/c6ra21564e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Among the NbOx modified MnCo2Ox catalysts by co-precipitation, MnCo2Nb0.5Ox presented high activity, N2 selectivity and H2O resistance for NH3-SCR reaction at low temperatures.
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Affiliation(s)
- Tengfei Xu
- Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Can Wang
- Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Xiaodong Wu
- Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Baohuai Zhao
- Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
| | - Ze Chen
- Graduate School at Shenzhen
- Tsinghua University
- Shenzhen 518055
- China
| | - Duan Weng
- Key Laboratory of Advanced Materials of Ministry of Education
- School of Materials Science and Engineering
- Tsinghua University
- Beijing 100084
- China
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140
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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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