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Ru nanoparticles stabilized by ionic liquids supported onto silica: highly active catalysts for low-temperature CO2 methanation
Guo, XP; Peng, ZJ; Traitangwong, A; Wang, G; Xu, HY; Meeyoo, V; Li, CS; Zhang, SJ; Guo, Xinpeng; Peng, Zhijian; Traitangwong, Atsadang; Wang, Gang; Xu, Haiyang; Meeyoo, Vissanu; Li, Chunshan; Zhang, Suojiang
2018
Source PublicationGREEN CHEMISTRY
ISSN1463-9262
Volume20Issue:21Pages:4932
Abstract

A series of Ru-based catalysts for CO2 methanation at low temperature were synthesized by the dispersion of Ru nanoparticles in different 1-butyl-3-methylimidazolium ionic liquids on a silica support. The effect of various ionic liquids and loadings on the physicochemical properties of the catalysts and the methanation catalytic activity were investigated. The Ru/[BMIM]BF4(1:10)/SiO2 catalyst demonstrated the best catalytic performance with CO2 conversion of 70.47% at 250 degrees C, which was related to the highly dispersed small Ru nanoparticles, basic property, and readily reducible RuO2 species. The results revealed that ionic liquids can not only be used as a protectant to effectively prevent the aggregation and oxidation of the nanoparticles by space resistance and electrostatic protection, but can also be adsorbed on the surface of Ru nanoparticles as a modification layer with strong adsorption to ultimately determine the size of the nanoparticles and maintain high dispersion, which can significantly affect the catalytic activity.

KeywordCarbon-dioxide Methanation Metal Nanoparticles Methanol Synthesis Aqueous-phase Particle-size Hydrogenation Spectroscopy Oxidation Oxide Acid
SubtypeArticle
DOI10.1039/c8gc02337a
WOS IDWOS:000448822900015
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26731
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Guo, XP,Peng, ZJ,Traitangwong, A,et al. Ru nanoparticles stabilized by ionic liquids supported onto silica: highly active catalysts for low-temperature CO2 methanation[J]. GREEN CHEMISTRY,2018,20(21):4932.
APA Guo, XP.,Peng, ZJ.,Traitangwong, A.,Wang, G.,Xu, HY.,...&Zhang, Suojiang.(2018).Ru nanoparticles stabilized by ionic liquids supported onto silica: highly active catalysts for low-temperature CO2 methanation.GREEN CHEMISTRY,20(21),4932.
MLA Guo, XP,et al."Ru nanoparticles stabilized by ionic liquids supported onto silica: highly active catalysts for low-temperature CO2 methanation".GREEN CHEMISTRY 20.21(2018):4932.
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