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Reshaping CuO on silica to generate a highly active Cu/SiO2 catalyst
Hou, XN (Hou, Xiaoning); Qing, SJ (Qing, Shaojun); Liu, YJ (Liu, Yajie); Xi, HJ (Xi, Hongjuan); Wang, TF (Wang, Tianfu); Wang, X (Wang, Xiang); Gao, ZX (Gao, Zhixian)
2016
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
Volume6Issue:16Pages:6311-6319
Abstract

Reduction-oxidation treatment [RO] of an impregnated CuO/SiO2 catalyst has been found to be effective in re-dispersing CuO particles on the support. During the process, CuO was actually reshaped within a confined area on silica, forming an annular morphology consisting of highly dispersed nano CuO particles. The reshaping might happen during the oxidation process following the reduction step, while no redispersion could be observed by applying the oxidation step alone. After activation with H-2, the RO treated samples demonstrated improved catalytic activity for methanol decomposition. These findings clearly indicate that the "shape" of CuO can be memorized during the activation process, resulting in the formation of a specific Cu metal and thus demonstrating different catalytic activities. Such a memory effect correlates the catalytic performance with the characterization data of CuO directly, which has the potential to provide a convenient approach for further catalyst development.

DOI10.1039/c6cy00770h
Indexed BySCI
WOS IDWOS:000381439400016
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4694
Collection环境科学与技术研究室
资源化学研究室
Affiliation1.Chinese Acad Sci, Inst Coal Chem, Taiyuan 030001, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys Chem, Urumqi 830011, Peoples R China
3.Nanchang Univ, Inst Appl Chem, Dept Chem, Nanchang 330031, Peoples R China
Recommended Citation
GB/T 7714
Hou, XN ,Qing, SJ ,Liu, YJ ,et al. Reshaping CuO on silica to generate a highly active Cu/SiO2 catalyst[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(16):6311-6319.
APA Hou, XN .,Qing, SJ .,Liu, YJ .,Xi, HJ .,Wang, TF .,...&Gao, ZX .(2016).Reshaping CuO on silica to generate a highly active Cu/SiO2 catalyst.CATALYSIS SCIENCE & TECHNOLOGY,6(16),6311-6319.
MLA Hou, XN ,et al."Reshaping CuO on silica to generate a highly active Cu/SiO2 catalyst".CATALYSIS SCIENCE & TECHNOLOGY 6.16(2016):6311-6319.
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