ICCAS OpenIR
Electro-oxidation of benzyl alcohol in a biphasic system consisting of supercritical CO2 and ionic liquids
Zhao, GY; Jiang, T; Wu, WZ; Han, BX; Liu, ZM; Gao, HX
2004-08-26
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY B
ISSN1520-6106
Volume108Issue:34Pages:13052-13057
AbstractElectro-oxidation of benzyl alcohol was conducted by electrolysis in an ionic liquid/supercritical CO2 (IL/SC CO2) two-phase system in an undivided cell at 318.2 K and up to 10.3 MPa, and two ILs, 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]) and 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]) were used as the solvents and electrolytes. It was demonstrated that benzyl alcohol could be efficiently electro-oxidized to benzaldehyde. [Bmim][BF4] was more effective medium for the electro-oxidation of benzyl alcohol. The effects of various factors, such as pressure and the concentration of benzyl alcohol, on the reaction were studied as [Bmim][BF4] was used. The Faradic efficiency (FE) and selectivity of benzaldehyde increased with the pressure of CO2 when the pressure was lower than about 9.3 MPa, while the FE decreased as the pressure was increased further. This interesting phenomenon could be explained reasonably on the basis of solubility difference of the reactants and products. The experiments also indicated that the products could be easily recovered from the IL by using SC CO2 extraction after the electrolysis, and the IL could be reused.
DOI10.1021/jp0372921
Indexed BySCI
Language英语
WOS IDWOS:000223430800061
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:40[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82414
Collection中国科学院化学研究所
Corresponding AuthorJiang, T
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhao, GY,Jiang, T,Wu, WZ,et al. Electro-oxidation of benzyl alcohol in a biphasic system consisting of supercritical CO2 and ionic liquids[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2004,108(34):13052-13057.
APA Zhao, GY,Jiang, T,Wu, WZ,Han, BX,Liu, ZM,&Gao, HX.(2004).Electro-oxidation of benzyl alcohol in a biphasic system consisting of supercritical CO2 and ionic liquids.JOURNAL OF PHYSICAL CHEMISTRY B,108(34),13052-13057.
MLA Zhao, GY,et al."Electro-oxidation of benzyl alcohol in a biphasic system consisting of supercritical CO2 and ionic liquids".JOURNAL OF PHYSICAL CHEMISTRY B 108.34(2004):13052-13057.
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