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Synthesis of Nano Manganese Oxide with Assistance of Ultrasonic for Removal of Low Concentration NO
Gong Yun; Liu Yan; Gu Ping; Zhu Yu-Fang; Zhou Xiao-Xia
2019-02-20
Source PublicationJOURNAL OF INORGANIC MATERIALS
ISSN1000-324X
Volume34Issue:2Pages:186
SubtypeArticle
AbstractThe varied-valence nanocatalyst MnOx was prepared using the oxidation-reduction method under ultrasonic. The optimal synthetic conditions of MnO(x )were explored by adjusting the ultrasonic time, concentration of reaction precursor, drying temperature, and pH of reaction solution. The results indicated that the optimal sample MnOx was synthesized under the condition of ultrasonic time of 20 min, 0.5 mol/L KMnO4, drying temperature of 80 degrees C and pH=7, which showed the super catalytic performance and the time of 100% NO removal rate was as high as 15 h at room temperature. The structure and morphology of the optimal catalyst MnOx were investigated by XRD, N-2-adsorption-desorption analysis, SEM and TEM. Besides, XPS and FT-IR were also applied to explore the catalytic oxidation process of NO removal and the deactivation mechanism of the optimal sample MnOx. It is believed that the interpenetrating and hierarchal pore, the petaloid morphology and weak crystallization structure contribute to the gas adsorption and transmission. The presence of varied-valence Mn and oxygen vacancy can improve the adsorption and activation of NO and O-2, thus, enhancing the NO catalytic removal on the optimal catalyst MnOx at room temperature.
KeywordMnOx low concentration NO ultrasonic nano materials oxidation
DOI10.15541/jim20180209
Language中文
WOS Research AreaMaterials Science
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27323
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Gong Yun,Liu Yan,Gu Ping,et al. Synthesis of Nano Manganese Oxide with Assistance of Ultrasonic for Removal of Low Concentration NO[J]. JOURNAL OF INORGANIC MATERIALS,2019,34(2):186.
APA Gong Yun,Liu Yan,Gu Ping,Zhu Yu-Fang,&Zhou Xiao-Xia.(2019).Synthesis of Nano Manganese Oxide with Assistance of Ultrasonic for Removal of Low Concentration NO.JOURNAL OF INORGANIC MATERIALS,34(2),186.
MLA Gong Yun,et al."Synthesis of Nano Manganese Oxide with Assistance of Ultrasonic for Removal of Low Concentration NO".JOURNAL OF INORGANIC MATERIALS 34.2(2019):186.
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