Preparation of hierarchical dandelion-like CuO microspheres with enhanced catalytic performance for dimethyldichlorosilane synthesis

Zailei Zhang, Hongwei Che, Yingli Wang, Lianying Song, Ziyi Zhong, Fabing Su*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

Hierarchical dandelion-like CuO (HD-CuO) microspheres composed of nanoribbons were prepared via a facile hydrothermal method. The samples were characterized by nitrogen adsorption, X-ray diffraction, temperature-programmed reduction, thermogravimetric analysis, transmission electron microscopy and scanning electron microscopy. It was found that the reaction temperature, reaction time and reagent amounts had a significant effect on the morphology and structure of HD-CuO. The obtained HD-CuO microspheres possessed a surface area of 10.6-57.5 m 2 g -1 and a diameter of 3-6 μm. In the formation process, ethylene glycol was adsorbed on the surface of the CuO nanoribbons and it acted as the structure-directing agent and thereafter the CuO nanoribbons were self-assembled into HD-CuO. The investigation of the Rochow reaction showed that the HD-CuO catalyst had a better catalytic performance in dimethyldichlorosilane synthesis than the commercial CuO microparticles and commercial CuO-Cu 2O-Cu catalyst, owing to its well-developed hierarchically porous structure and higher specific surface area, leading to the increased contact interface among reaction gas, solid catalyst and solid silicon, together with enhanced mass transportation.

Original languageEnglish
Pages (from-to)1953-1960
Number of pages8
JournalCatalysis Science and Technology
Volume2
Issue number9
DOIs
StatePublished - Sep 2012
Externally publishedYes

Fingerprint Dive into the research topics of 'Preparation of hierarchical dandelion-like CuO microspheres with enhanced catalytic performance for dimethyldichlorosilane synthesis'. Together they form a unique fingerprint.

Cite this