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Clean synthesis of RGO/Mn3O4 nanocomposite with well-dispersed Pd nanoparticles as a high-performance catalyst for hydroquinone oxidation
Ma, Yao1; Si, Conghui2; Yang, Xing1; Li, Jianan1; Wang, Zhezhao1; Shi, XZ(时雪钊)1; Ye, WC(叶为春)1; Zhou, PP(周盼盼)1; Budzianowski, Wojciech M.3
Indexed BySCI
2018-09-15
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume552Pages:72-83
AbstractIn this study, a well-dispersed Pd nanoparticle (NP)-supported RGO/Mn3O4 (G/M/Pd) composite was synthesized by a clean synthetic route, where galvanic replacement reaction simply occurred between Mn3O4 and a palladium salt, thereby avoiding the use of harsh reducing and capping agents. The G/M/Pd composite served as a robust catalyst for the catalytic oxidation of hydroquinone (HQ) to benzoquinone (BQ) with H2O2 in an aqueous solution. Oxidation was completed in only 4 min, with a turnover frequency (TOF) of 3613 h(-1); this TOF is one hundred times those of previously reported Pd- and Ag-based catalysts. The superior performance was related to the electronic inductive effect between Mn3O4 and Pd NPs, which was verified by density functional theory calculations. Trapping experiments revealed that the oxidation of HQ was considerably related to the center dot OH radicals generated from the decomposition of H2O2. In addition, the influencing factors were further investigated, including catalyst and HQ concentrations, solution pH, solvents, and various inorganic and organic interferences. Moreover, the G/ M/Pd catalyst exhibits diverse applications for the catalytic oxidation of HQ derivatives with high TOFs. (C) 2019 Elsevier Inc. All rights reserved.
KeywordGalvanic replacement Mn3O4 Oxidation of hydroquinone Hydroxyl radicals Density functional theory (DFT) calculation
Funding ProjectNatural Science Foundation of Gansu Province, China[17JR5RA209]
DOI10.1016/j.jcis.2019.05.009
ISSN0021-9797
Language英语
Original Document TypeArticle
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000481566500010
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/281991
Collection兰州大学
Corresponding AuthorYe, Weichun; Zhou, Panpan; Budzianowski, Wojciech M.
Affiliation1.Lanzhou Univ, Dept Chem, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Gansu, Peoples R China
2.Qilu Univ Technol, Key Lab Proc & Testing Technol Glass & Funct Cera, Sch Mat Sci & Engn, Shandong Acad Sci, Jinan 250353, Shandong, Peoples R China
3.Wojciech Budzianowski Consulting Serv, Poleska 11-37, PL-51354 Wroclaw, Poland
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Ma, Yao,Si, Conghui,Yang, Xing,et al. Clean synthesis of RGO/Mn3O4 nanocomposite with well-dispersed Pd nanoparticles as a high-performance catalyst for hydroquinone oxidation[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2018,552:72-83.
APA Ma, Yao.,Si, Conghui.,Yang, Xing.,Li, Jianan.,Wang, Zhezhao.,...&Budzianowski, Wojciech M..(2018).Clean synthesis of RGO/Mn3O4 nanocomposite with well-dispersed Pd nanoparticles as a high-performance catalyst for hydroquinone oxidation.JOURNAL OF COLLOID AND INTERFACE SCIENCE,552,72-83.
MLA Ma, Yao,et al."Clean synthesis of RGO/Mn3O4 nanocomposite with well-dispersed Pd nanoparticles as a high-performance catalyst for hydroquinone oxidation".JOURNAL OF COLLOID AND INTERFACE SCIENCE 552(2018):72-83.
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