科研之友
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摘要
CuO/SiO2 catalysts were synthesized by chemical vapor deposition, and the resulting supported CuO nanoparticles with loadings of 0.2-2 mmol/g are mixed phases of monoclinic and cubic CuO, and highly dispersed on the substrate SiO2 with an average particle size around 4 nm. An interaction between CuO and the support is confirmed by FT-IR and more surface acidity is generated due to a loading of CuO on the support. The prepared CuO/SiO2 catalysts exhibit a much higher dispersion degree of CuO than those by impregnation, and thus much better catalytic performances in phenol hydroxylation to catechol and hydroquinone.
- 出版日期2017-10
- 单位扬州大学
