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Xie J, Ye Y, Li Q, Kang T, Hou S, Jin Q, He F, Fang D. Denitrification performance and sulfur resistance mechanism of Sm-Mn catalyst for low temperature NH3-SCR. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2258-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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Wang G, Liang Y, Song J, Xu K, Pan Y, Xu X, Zhao Y. Co-doped MnCeOx/ZrO2 catalysts for low temperature selective catalytic reduction of NO. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04701-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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A theoretical investigation on the thermal decomposition of pyridine and the effect of H2O on the formation of NOx precursors. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-020-2024-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Pan H, Chen Z, Ma M, Guo T, Ling X, Zheng Y, He C, Chen J. Mutual inhibition mechanism of simultaneous catalytic removal of NO x and toluene on Mn-based catalysts. J Colloid Interface Sci 2021; 607:1189-1200. [PMID: 34571306 DOI: 10.1016/j.jcis.2021.09.110] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/06/2021] [Accepted: 09/19/2021] [Indexed: 10/20/2022]
Abstract
NOx and toluene have been identified as the dominant air pollutants in solid wasted combustion, and it is of great importance to remove these two pollutants simultaneously. Here, we found that Mn/CeO2 and Mn/TiO2 exhibited a bifunctional property in both NO reduction and toluene oxidation, and both of which could achieve 80% of conversion rate in NO reduction and toluene oxidation processes. However, the activity of both Mn/CeO2 and Mn/TiO2 decreased in simultaneous removal of NOx and toluene compared with separate NOx reduction and toluene oxidation. This indicates that there is a mutual inhibition between NOx reduction and toluene oxidation in simultaneous removal process over Mn-based catalysts, attributing to the competitive adsorption and utilization of active oxygen. In detail, the adsorption of toluene occupied the Lewis acid sites and restrained the NH3 adsorption. Meanwhile, the competitive utilization of active oxygen by NH3/NOx inhibited toluene oxidation to CO2 by active oxygen species as the reaction between NH3/NOx and active oxygen species would occur more easily.
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Affiliation(s)
- Hua Pan
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Zhenghui Chen
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China; Engineering Research Center of the Ministry of Education for Bioconversion and Biopurification, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Mudi Ma
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Tianjiao Guo
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Xin Ling
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China; Engineering Research Center of the Ministry of Education for Bioconversion and Biopurification, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Yufan Zheng
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China
| | - Chi He
- School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Jun Chen
- Laboratory of Pollution Exposure and Health Intervention Technology, College of Biological and Environment Engineering, Zhejiang Shuren University, Hangzhou 310015, China; Engineering Research Center of the Ministry of Education for Bioconversion and Biopurification, Zhejiang University of Technology, Hangzhou 310032, PR China.
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