摘要
使用四针状ZnO纳米晶须作为催化剂,通过光还原法制备Cu/ZnO复合纳米粒子。采用XRD,TEM对样品进行表征。当少量Cu沉积在ZnO晶须表面上时,复合纳米粒子仍为四针状,且由ZnO和Cu2O组成。当大量的Cu沉积在ZnO上时,复合纳米粒子呈颗粒状,且由ZnO,Cu5Zn8和Cu2O三相组成。
The Cu/ZnO composite nanoparticles were prepared by photo-reduction method by using the photocatalysis characteristic of its matrix materials. The as-prepared samples were characterized by XRD and TEM. When a small quantity of Cu deposits on the surface of ZnO nanowhiskers, the composite nanoparticles maintain a tetrapod shape. In this case, Cu_2O is found on the surface of the ZnO nanowhiskers. When a mass of Cu are deposited on ZnO nanowhiskers, Cu_2O and Cu_5Zn_8 are segregated on the center of the ZnO nanowhiskers.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2005年第3期271-274,共4页
Chinese Journal of Rare Metals
基金
湖北省教育厅科研资助项目(2001A1997)
