Nitric oxide (NO) is an air pollutant that is difficult to remove at low concentration and low temperature. Manganese oxides (MnOx)-loaded activated carbon (MLAC) was prepared by a co-precipitation method and studied as a new catalyst for NO oxidation at low temperature. Characterization of MLAC included X-ray diffraction (XRD), scanning electron microscopy (SEM), N-2 adsorption/desorption and X-ray photoelectron spectroscopy (XPS). Activity tests demonstrated the influence of the amount of MnOx and the test conditions on the reaction. MLAC with 7.5 wt.% MnOx (MLAC003) exhibits the highest NO conversion (38.7%) at 1000 ppm NO, 20 vol.% O-2, room temperature and GHSV ca. 16000 h(-1). The NO conversion of MLAC003 was elevated by 26% compared with that of activated carbon. The results of the MLAC003 activity test under different test conditions demonstrated that NO conversion is also influenced by inlet NO concentration, inlet O-2 concentration, reaction temperature and GHSV. The NO adsorption-desorption process in micropores of activated carbon is fundamental to NO oxidation, which can be controlled by pore structure and reaction temperature. The activity elevation caused by MnOx loading is assumed to be related to Mn4+/Mn3+ ratio. Finally, a mechanism of NO catalytic oxidation on MLAC based on NO adsorption-desorption and MnOx lattice O transfer is proposed. (C) 2017 Elsevier B.V. All rights reserved.
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Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R ChinaTianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Chen, Jiahao
Shen, Meiqing
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Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R ChinaTianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Shen, Meiqing
Wang, Xinquan
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Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R ChinaTianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Wang, Xinquan
Qi, Gongshin
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Gen Motors Global Res & Dev, Chem Sci & Mat Syst Lab, Warren, MI 48090 USATianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Qi, Gongshin
Wang, Jun
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Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R ChinaTianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Wang, Jun
Li, Wei
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Gen Motors Global Res & Dev, Chem Sci & Mat Syst Lab, Warren, MI 48090 USATianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
机构:
Univ Sao Paulo, Polytech Sch, Dept Chem Engn, BR-05424970 Sao Paulo, BrazilUniv Sao Paulo, Polytech Sch, Dept Chem Engn, BR-05424970 Sao Paulo, Brazil
de Paiva, JL
Kachan, GC
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Univ Sao Paulo, Polytech Sch, Dept Chem Engn, BR-05424970 Sao Paulo, BrazilUniv Sao Paulo, Polytech Sch, Dept Chem Engn, BR-05424970 Sao Paulo, Brazil
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
Fang, Jun
Bi, Xinzhen
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
Bi, Xinzhen
Si, Dejun
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
Si, Dejun
Jiang, Zhiquan
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
Jiang, Zhiquan
Huang, Weixin
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
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Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R ChinaTianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Chen, Jiahao
Shen, Meiqing
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Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R ChinaTianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Shen, Meiqing
Wang, Xinquan
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Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R ChinaTianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Wang, Xinquan
Qi, Gongshin
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h-index: 0
机构:
Gen Motors Global Res & Dev, Chem Sci & Mat Syst Lab, Warren, MI 48090 USATianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Qi, Gongshin
Wang, Jun
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Tianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R ChinaTianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
Wang, Jun
Li, Wei
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Gen Motors Global Res & Dev, Chem Sci & Mat Syst Lab, Warren, MI 48090 USATianjin Univ, Sch Chem Engn & Technol, Key Lab Green Chem Technol, State Educ Minist, Tianjin 300072, Peoples R China
机构:
Univ Sao Paulo, Polytech Sch, Dept Chem Engn, BR-05424970 Sao Paulo, BrazilUniv Sao Paulo, Polytech Sch, Dept Chem Engn, BR-05424970 Sao Paulo, Brazil
de Paiva, JL
Kachan, GC
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机构:
Univ Sao Paulo, Polytech Sch, Dept Chem Engn, BR-05424970 Sao Paulo, BrazilUniv Sao Paulo, Polytech Sch, Dept Chem Engn, BR-05424970 Sao Paulo, Brazil
机构:
Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
Fang, Jun
Bi, Xinzhen
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
Bi, Xinzhen
Si, Dejun
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
Si, Dejun
Jiang, Zhiquan
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China
Jiang, Zhiquan
Huang, Weixin
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Univ Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R ChinaUniv Sci & Technol China, Fritz Haber Inst, Dept Chem Phys, Hefei Nat Lab,MPG CAS Partner Grp, Hefei 230026, Peoples R China