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The Chitin/Keggin-type heteropolyacid hybrid microspheres as catalyst for oxidation of methacrolein to methacrylic acid
Cao, Yun-Li1,2,3; Wang, Lei1; Xu, Bao-Hua1; Zhang, Suo-Jiang1
2018-02-15
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume334Pages:1657-1667
Abstract

The Chitin-CsH3PMo11VO40 (Ch-CsPAV) hybrids was prepared by a facile one-pot approach and characterized by FT-IR, XRD, SEM, TG/DTA, NH3-TPD, XPS and NMR. The performance of Ch-CsPAV as a catalyst on the oxidative transformation of methacrolein (MAL) to methacrylic acid (MAA) was studied in this study. It was found that both acidity and redox property of the precusor (CsPAV) could be regulated upon introducing chitin as a component. Specifically, the resulted Ch-CsPAV with uniform microspheres had higher amount of acidic sites, better redox active sites (VO2+) and improved agent (NH4+), thereby rendering an improved catalytic performance in the reaction launched. Under optimized conditions, higher MAL conversion (80%) and MAA selectivity (94%) were attained in the presence of Ch-CsPAV. In addition, the reaction mechanism of the conversion of MAL to MAA was proposed by in situ FT-IR. The hybrid catalyst showed good stability by the long-term stability test.

KeywordChitin Heteropolyacid Methacrolein Methacrylic Acid Oxidation
DOI10.1016/j.cej.2017.11.116
Language英语
WOS KeywordSelective Oxidation ; Crystal-structure ; Cesium Salts ; Isobutane ; Chitosan ; Polyoxometalate ; Dehydrogenation ; Photochromism ; Performance ; H3pmo12o40
Funding ProjectNational Basic Research Program of China (973 Program)[2015CB251401] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC011] ; Key Program of National Natural Science Foundation of China[91434203] ; Fund of State Key Laboratory of Multiphase Complex Systems, IPE, CAS[MPCS-2015-A-05] ; CAS/SAFEA International Partnership Program for Creative Research Teams[20140491518]
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
Funding OrganizationNational Basic Research Program of China (973 Program) ; Key Research Program of Frontier Sciences, CAS ; Key Program of National Natural Science Foundation of China ; Fund of State Key Laboratory of Multiphase Complex Systems, IPE, CAS ; CAS/SAFEA International Partnership Program for Creative Research Teams
WOS IDWOS:000453653800002
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24409
Collection多相复杂系统国家重点实验室
Corresponding AuthorZhang, Suo-Jiang
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China
2.Pingdingshan Univ, Pingdingshan 467000, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Cao, Yun-Li,Wang, Lei,Xu, Bao-Hua,et al. The Chitin/Keggin-type heteropolyacid hybrid microspheres as catalyst for oxidation of methacrolein to methacrylic acid[J]. CHEMICAL ENGINEERING JOURNAL,2018,334:1657-1667.
APA Cao, Yun-Li,Wang, Lei,Xu, Bao-Hua,&Zhang, Suo-Jiang.(2018).The Chitin/Keggin-type heteropolyacid hybrid microspheres as catalyst for oxidation of methacrolein to methacrylic acid.CHEMICAL ENGINEERING JOURNAL,334,1657-1667.
MLA Cao, Yun-Li,et al."The Chitin/Keggin-type heteropolyacid hybrid microspheres as catalyst for oxidation of methacrolein to methacrylic acid".CHEMICAL ENGINEERING JOURNAL 334(2018):1657-1667.
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