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High surface area MnO2 catalysts prepared by a metastable aqueous-aqueous interface method and their catalytic oxidation activity

IOP conference series. Earth and environmental science, 2021-12, Vol.947 (1) [Peer Reviewed Journal]

Published under licence by IOP Publishing Ltd ;2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1755-1307 ;EISSN: 1755-1315 ;DOI: 10.1088/1755-1315/947/1/012018

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  • Title:
    High surface area MnO2 catalysts prepared by a metastable aqueous-aqueous interface method and their catalytic oxidation activity
  • Author: Phuong, Nguyen Thi Truc ; Ngoc, Tran Thi Hong ; Tu, Le Nguyen Quang ; Long, Nguyen Quang
  • Subjects: Catalysts ; Catalytic oxidation ; Crystal structure ; Crystallinity ; Decomposition ; Environmental protection ; Hydrogen peroxide ; Leaching ; Manganese dioxide ; Oxidation ; Regeneration ; Room temperature ; Surface area ; X ray powder diffraction ; X-ray diffraction
  • Is Part Of: IOP conference series. Earth and environmental science, 2021-12, Vol.947 (1)
  • Description: In this work, the metastable aqueous-aqueous interfacial approach was used to prepare MnO2 with enhanced surface area, which helps to save energy, decrease cost and protect the environment. The material characteristic success was proven through using powder X-ray diffraction for the crystalline properties and N2 adsorption-desorption isotherm for high surface area. The relationship between the calcination temperature and the crystallinity as well the specific material surface area was also interested. The catalytic decomposition of hydrogen peroxide was investigated by the closed system measuring produced oxygen. After the H2O2 decomposition comparison between synthesized samples and commercial MnO2 in terms of both the efficiency and the speed, the M-200 sample was considered as a typical sample with outstanding performance to examine the reaction conditions (H2O2 solution concentration, catalyst amount and reaction temperature). The optimal reaction condition results are 0.9% H2O2 solution concentration, 0.2g/L catalyst, and room temperature. Besides, the leaching test and the catalytic regeneration were also conducted.
  • Publisher: Bristol: IOP Publishing
  • Language: English
  • Identifier: ISSN: 1755-1307
    EISSN: 1755-1315
    DOI: 10.1088/1755-1315/947/1/012018
  • Source: Open Access: IOP Publishing Free Content
    AUTh Library subscriptions: ProQuest Central
    IOPscience (Open Access)
    Alma/SFX Local Collection
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