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NiO promoted CuO–NiO/SBA-15 composites as highly active catalysts for epoxidation of olefins.
- Source :
-
New Journal of Chemistry . Oct2016, Vol. 40 Issue 10, p8543-8548. 6p. - Publication Year :
- 2016
-
Abstract
- In this paper, CuO–NiO supported on mesoporous silica SBA-15 was developed using the ultrasonic post-grafting method. The bi-metallic oxides were well-dispersed in very small sizes in the mesoporous channels, and the presence of NiO enhanced the surface content of CuO, leading to a redistribution of CuO and good dispersion of CuO nanoparticles, which were characterized by high-resolution transmission electron microscopy (HRTEM), XRD and N2 adsorption and desorption isotherm examination. Compared with the CuO/SBA-15 or NiO/SBA-15, the electron transfer that occurred between the two metal oxides and high dispersion of the active components improved the overall selective olefin oxidation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 40
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 118537995
- Full Text :
- https://doi.org/10.1039/c6nj01654e