Synthesis of Nano Manganese Oxide with Assistance of Ultrasonic for Removal of Low Concentration NO

Yun GONG; Yan LIU; Ping GU; Yu-Fang ZHU; Xiao-Xia ZHOU; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

doi:10.15541/jim20180209

Journal of Inorganic Materials, Volume. 34, Issue 2, 186(2019)

Synthesis of Nano Manganese Oxide with Assistance of Ultrasonic for Removal of Low Concentration NO

Yun GONG1...2, Yan LIU3, Ping GU1, Yu-Fang ZHU2, Xiao-Xia ZHOU3, [in Chinese]1,2, [in Chinese]3, [in Chinese]1, [in Chinese]2 and [in Chinese]3 |Show fewer author(s)

Author Affiliations

¹1. Department of Printing and Packing, Shanghai Publishing and Printing College, Shanghai 200093, China

²2. School of Material Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

³3. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

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Figures & Tables(8)

. Effect of process parameters of the sample MnO_x on the NO catalytic removal performance
(a) Ultrasonic time; (b) Reactants concentration; (c) Dry temperature; (d) pH

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. XRD patterns of MnO_x-20-0.5-80-7 before and after calcination (a) and corresponding
N₂ adsorption-desorption curves and the distribution of pore size (b)

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. SEM (a-b) and TEM (c) images and the corresponding (d) SAED pattern of MnO_x-20-0.5-80-7

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. XPS spectra of the sample MnO_x-20-0.5-80-7 before and after catalytic test
(a) Mn2p_3/2, before; (b) Mn2p_3/2, after; (c) O1s, before; (d) O1s, after

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. Catalytic performance of the sample MnO_x-20-0.5-80-7 on low-concentration NO removal ratio at room temperature (Reaction conditions: [NO]=10 cm³/m³, [O₂]=21%, N₂, 25 ℃ and GHSV = 120000 mL•h^-1•g^-1)

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. FT-IR spectra of MnO_x-20-0.5-80-7 before and after catalytic test

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. The possible catalytic process of MnO_x toward NO oxidation

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Table 1. XPS data of catalyst MnO_x-20-0.5-80-7 before and after the NO removal test

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Table 1. XPS data of catalyst MnO_x-20-0.5-80-7 before and after the NO removal test

Element	Phase	Before test		After test
Element	Phase	Binding energy/eV	Percentage/%	Binding energy/eV	Percentage/%
Mn-surface	Mn²⁺	641.2	4.8	641.1	4.1
	Mn³⁺	642.5	26.7	642.5	37.6
	Mn⁴⁺	643.5	66.5	643.5	58.3
Mn-etch 10 s	Mn²⁺	640.9	13.5	640.8	10.8
	Mn³⁺	642.1	54.0	642.1	56.5
	Mn⁴⁺	644.3	32.5	644.3	32.7
O-surface	O_lat	530.1	54.5	530.1	64.0
O-surface	O_ads	531.5	45.5	531.8	36.0
O-etch 10 s	O_lat	530.1	78.5	530.0	70.2
O-etch 10 s	O_ads	531.5	21.5	531.5	29.8

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Yun GONG, Yan LIU, Ping GU, Yu-Fang ZHU, Xiao-Xia ZHOU, [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Synthesis of Nano Manganese Oxide with Assistance of Ultrasonic for Removal of Low Concentration NO[J]. Journal of Inorganic Materials, 2019, 34(2): 186

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Paper Information

Category: Research Articles

Received: May. 4, 2018

Accepted: --

Published Online: Sep. 24, 2021

The Author Email:

DOI:10.15541/jim20180209

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. XPS data of catalyst MnOx-20-0.5-80-7 before and after the NO removal test

Table 1. XPS data of catalyst MnOx-20-0.5-80-7 before and after the NO removal test

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Table 1. XPS data of catalyst MnO_x-20-0.5-80-7 before and after the NO removal test

Table 1. XPS data of catalyst MnO_x-20-0.5-80-7 before and after the NO removal test