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Rapid Ultrasound-Assisted Synthesis of Mesoporous Manganese Oxides for Low-Concentration NO Elimination with Superior Water-Resistance
Du, Yanyan1; He, Feng2; Hua, Zile1; Wu, Zhijian2; Li, Mengli1; Li, Jiusheng; Huang, Keke3; Shi, Jianlin1
2017
发表期刊EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN1434-1948
期号19页码:2573
摘要Through a room-temperature ultrasound-assisted redox process, mesoporous manganese oxides were synthesized in short reaction times of 3-9 h. At room temperature, the resultant materials showed superior performance for the elimination of low-concentration NO (10 ppm). Specifically, under humid conditions (50-90 % relative humidity), 97 % NO removal efficiency was obtained over 110 h without deactivation. Synergetic effects between Mn2+, Mn3+, and Mn4+ ions were proposed to explain the oxidation of NO to NO2 on the surface of the catalyst. Density functional theory (DFT) calculations indicated that water molecules strengthen the chemisorption of NO2 on manganese oxide (001) owing to a much higher adsorption energy. As a result, the probability of the reaction between NO2 and H2O increases, and the formation of volatile nitric acid ensures that the catalytically active sites are always available.
DOI10.1002/ejic.201700008
WOS记录号WOS:000403050300007
EI入藏号1099-0682
引用统计
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/26680
专题中国科学院上海硅酸盐研究所
作者单位1.Chinese Acad Sci, Shanghai Adv Res Inst, Green Chem Engn Technol Res Ctr, Shanghai 201210, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China
4.Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
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Du, Yanyan,He, Feng,Hua, Zile,et al. Rapid Ultrasound-Assisted Synthesis of Mesoporous Manganese Oxides for Low-Concentration NO Elimination with Superior Water-Resistance[J]. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,2017(19):2573.
APA Du, Yanyan.,He, Feng.,Hua, Zile.,Wu, Zhijian.,Li, Mengli.,...&Shi, Jianlin.(2017).Rapid Ultrasound-Assisted Synthesis of Mesoporous Manganese Oxides for Low-Concentration NO Elimination with Superior Water-Resistance.EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(19),2573.
MLA Du, Yanyan,et al."Rapid Ultrasound-Assisted Synthesis of Mesoporous Manganese Oxides for Low-Concentration NO Elimination with Superior Water-Resistance".EUROPEAN JOURNAL OF INORGANIC CHEMISTRY .19(2017):2573.
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