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Your search keyword '"Yuan, Chengyuan"' showing total 3 results
Start Over Author "Yuan, Chengyuan" Journal catalysis communications
3 results on '"Yuan, Chengyuan"'

1. Molybdovanadophosphoric anion ionic liquid as a reusable catalyst for solvent-free benzene oxidation to phenol by H2O2

Author

Yuan Chengyuan, Tan Zhengguo, Pan Zhishuang, Li Xueli, and Xionghou Gao

Subjects
Solvent free, Process Chemistry and Technology, Inorganic chemistry, General Chemistry, Catalysis, Ion, Solvent, chemistry.chemical_compound, chemistry, Emulsion, Ionic liquid, Phenol, Benzene
Abstract

Molybdovanadophosphoric anion (H 2 PMo 11 VO 40 2 − ) room temperature ionic liquid was prepared and characterized by the methods of FT-IR and TG. Then, this ionic liquid was employed as catalyst for the oxidation of benzene to phenol by H 2 O 2 without using solvent. The homogeneous emulsion formed by the catalyst and substrates during the reaction facilitated the catalytic process. After reaction, the catalyst could self-precipitate from the reaction media and proved to be recyclable.

Published
2015

3. Basic ionic liquid supported on mesoporous SBA-15: An efficient heterogeneous catalyst for epoxidation of olefins with H2O2 as oxidant

Author

Yuan, Chengyuan, Huang, Zhiwei, and Chen, Jing

Subjects
*IONIC liquids, *HETEROGENEOUS catalysts, *MESOPOROUS materials, *SILICA, *EPOXIDATION, *ALKENES, *HYDROGEN peroxide, *FOURIER transform infrared spectroscopy
Abstract

Abstract: Basic ionic liquid functionalized mesoporous silica SBA-15 was prepared and characterized by XRD, N2 adsorption–desorption, FT-IR and TEM. The catalyst demonstrated to be an efficient heterogeneous catalyst for olefin epoxidation using H2O2 as oxidant. The catalyst could be recycled at least five times without appreciable loss of catalytic activity. [Copyright &y& Elsevier]

Published
2012
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