α-MnO2/Mn2O3/AISI304丝网整体式催化剂的制备及催化燃烧碳烟性能研究

Jing Wei Liu; Li Chen; Guo Feng Guan

doi:10.16606/j.cnki.issn0253-4320.2020.11.036

α-MnO₂/Mn₂O₃/AISI304丝网整体式催化剂的制备及催化燃烧碳烟性能研究

Translated title of the contribution: Preparation of α-MnO₂/Mn₂O₃/AISI304 wire-mesh monolithic catalyst and its performance in catalytic combustion of soot

Jing Wei Liu, Li Chen, Guo Feng Guan

College of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A two-step hydrothermal method is utilized to prepare α-MnO₂/Mn₂O₃/AISI304 wire-mesh monolithic catalyst.Firstly, Mn₂O₃ coating grows on AISI304 wire-mesh through urea hydrothermal method, then the catalyst with α-MnO₂ as active component generates in situ on the coating surface.The as-prepared catalyst is characterized by XRD, SEM, N₂ adsorption-desorption, and H₂-TPR, et al. Effects of different roasting temperatures on the monolithic catalyst's structure and catalytic combustion performance for soot are investigated. It is shown that α-MnO₂ nanorods are the main active components of Mn-Nit-700 when the roasting temperature is 700℃.Mn-Nit-700 has more abundant surface active oxygen species (<500℃), which is beneficial to the catalytic combustion of soot. In an O₂/N₂ atmosphere, Mn-Nit-700 catalyst shows the best catalytic performance for soot combustion (T₅₀=388℃) with excellent water tolerance, and CO₂ selectivity can reach 100%.

Translated title of the contribution	Preparation of α-MnO₂/Mn₂O₃/AISI304 wire-mesh monolithic catalyst and its performance in catalytic combustion of soot
Original language	Chinese (Traditional)
Pages (from-to)	173-177
Number of pages	5
Journal	Xiandai Huagong/Modern Chemical Industry
Volume	40
Issue number	11
DOIs	https://doi.org/10.16606/j.cnki.issn0253-4320.2020.11.036
State	Published - 20 Nov 2020

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title = "α-MnO2/Mn2O3/AISI304丝网整体式催化剂的制备及催化燃烧碳烟性能研究",

abstract = "A two-step hydrothermal method is utilized to prepare α-MnO2/Mn2O3/AISI304 wire-mesh monolithic catalyst.Firstly, Mn2O3 coating grows on AISI304 wire-mesh through urea hydrothermal method, then the catalyst with α-MnO2 as active component generates in situ on the coating surface.The as-prepared catalyst is characterized by XRD, SEM, N2 adsorption-desorption, and H2-TPR, et al. Effects of different roasting temperatures on the monolithic catalyst's structure and catalytic combustion performance for soot are investigated. It is shown that α-MnO2 nanorods are the main active components of Mn-Nit-700 when the roasting temperature is 700℃.Mn-Nit-700 has more abundant surface active oxygen species (<500℃), which is beneficial to the catalytic combustion of soot. In an O2/N2 atmosphere, Mn-Nit-700 catalyst shows the best catalytic performance for soot combustion (T50=388℃) with excellent water tolerance, and CO2 selectivity can reach 100%.",

keywords = "Catalytic combustion, Monolithic catalyst, Roasting temperature, Soot, α-MnO",

author = "Liu, {Jing Wei} and Li Chen and Guan, {Guo Feng}",

year = "2020",

month = nov,

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doi = "10.16606/j.cnki.issn0253-4320.2020.11.036",

language = "繁体中文",

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T1 - α-MnO2/Mn2O3/AISI304丝网整体式催化剂的制备及催化燃烧碳烟性能研究

AU - Liu, Jing Wei

AU - Chen, Li

AU - Guan, Guo Feng

PY - 2020/11/20

Y1 - 2020/11/20

N2 - A two-step hydrothermal method is utilized to prepare α-MnO2/Mn2O3/AISI304 wire-mesh monolithic catalyst.Firstly, Mn2O3 coating grows on AISI304 wire-mesh through urea hydrothermal method, then the catalyst with α-MnO2 as active component generates in situ on the coating surface.The as-prepared catalyst is characterized by XRD, SEM, N2 adsorption-desorption, and H2-TPR, et al. Effects of different roasting temperatures on the monolithic catalyst's structure and catalytic combustion performance for soot are investigated. It is shown that α-MnO2 nanorods are the main active components of Mn-Nit-700 when the roasting temperature is 700℃.Mn-Nit-700 has more abundant surface active oxygen species (<500℃), which is beneficial to the catalytic combustion of soot. In an O2/N2 atmosphere, Mn-Nit-700 catalyst shows the best catalytic performance for soot combustion (T50=388℃) with excellent water tolerance, and CO2 selectivity can reach 100%.

AB - A two-step hydrothermal method is utilized to prepare α-MnO2/Mn2O3/AISI304 wire-mesh monolithic catalyst.Firstly, Mn2O3 coating grows on AISI304 wire-mesh through urea hydrothermal method, then the catalyst with α-MnO2 as active component generates in situ on the coating surface.The as-prepared catalyst is characterized by XRD, SEM, N2 adsorption-desorption, and H2-TPR, et al. Effects of different roasting temperatures on the monolithic catalyst's structure and catalytic combustion performance for soot are investigated. It is shown that α-MnO2 nanorods are the main active components of Mn-Nit-700 when the roasting temperature is 700℃.Mn-Nit-700 has more abundant surface active oxygen species (<500℃), which is beneficial to the catalytic combustion of soot. In an O2/N2 atmosphere, Mn-Nit-700 catalyst shows the best catalytic performance for soot combustion (T50=388℃) with excellent water tolerance, and CO2 selectivity can reach 100%.

KW - Catalytic combustion

KW - Monolithic catalyst

KW - Roasting temperature

KW - Soot

KW - α-MnO

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M3 - 文章

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SN - 0253-4320

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JO - Xiandai Huagong/Modern Chemical Industry

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α-MnO₂/Mn₂O₃/AISI304丝网整体式催化剂的制备及催化燃烧碳烟性能研究

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