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Direct hydroxylation of benzene to phenol with molecular oxygen over vanadium oxide nanospheres and study of its mechanism
Luo, Guanhua1; Lv, Xuechuan1; Wang, Xingwang1,4; Yan, Su1; Gao, Xiaohan1,2; Xu, Jie3; Ma, Hong3; Jiao, Yujuan1; Li, Fayun2; Chen, Jinzhu3,5
2015
Source PublicationRSC Advances
Volume5Issue:114
AbstractDirect hydroxylation of benzene to phenol using molecular oxygen is a green route with high atom economy but still a great challenge when compared with the existing method of production. The activation of oxygen is necessary and reductive agents were used to activate dioxygen in a so-called "reductive activation" process. Here, nano vanadium oxides that consist mainly of low valence vanadium to activate dioxygen were prepared under different conditions via a hydrothermal method. Under the optimized conditions, an excellent phenol selectivity of 96.3% with benzene conversion of 4.2% was achieved over the VOC2O4-N-5 without reductive agents. Characterizations revealed that VOC2O4-N-5 was composed of a mesoporous nanosphere structure with medium strong acid sites and low valence vanadium species. A mechanism was proposed as follows: dioxygen was activated by low valence vanadium in VOC2O4-N-5 to produce the active oxygen species which oxidized acetic acid to peracetic acid. Then the active oxygen species was subsequently transferred from peracetic acid to benzene and inserted into the C-H bond to give phenol.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5ra17287j
WOS Subject ExtendedChemistry
WOS KeywordLIQUID-PHASE OXIDATION ; SELECTIVE OXIDATION ; HYDROGEN-PEROXIDE ; PALLADIUM MEMBRANE ; CATALYSTS ; DIOXYGEN ; FUNCTIONALIZATION ; ACTIVATION ; ALKANES ; BONDS
Indexed BySCI
Language英语
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000364073700056
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10894
Collection中国科学院广州能源研究所
Affiliation1.Liaoning Shihua Univ, Coll Chem Chem Engn & Environm Engn, Sch Chem & Mat Sci, Liaoning 113001, Fushun, Peoples R China
2.Liaoning Shihua Univ, Coll Chem Chem Engn & Environm Engn, Inst Ecol Environm, Liaoning 113001, Fushun, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
4.China Petr Engn, Beijing 100083, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Luo, Guanhua,Lv, Xuechuan,Wang, Xingwang,et al. Direct hydroxylation of benzene to phenol with molecular oxygen over vanadium oxide nanospheres and study of its mechanism[J]. RSC Advances,2015,5(114).
APA Luo, Guanhua.,Lv, Xuechuan.,Wang, Xingwang.,Yan, Su.,Gao, Xiaohan.,...&Chen, Jinzhu.(2015).Direct hydroxylation of benzene to phenol with molecular oxygen over vanadium oxide nanospheres and study of its mechanism.RSC Advances,5(114).
MLA Luo, Guanhua,et al."Direct hydroxylation of benzene to phenol with molecular oxygen over vanadium oxide nanospheres and study of its mechanism".RSC Advances 5.114(2015).
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