پديد آورندگان :
Ramezani، M نويسنده Azad University North Tehran Branch,Chemistry Department; , , Aghabozorg، H.R نويسنده Research Institute of Petroleum Industry,; , , Sakhaie، F نويسنده Azad University North Tehran Branch,Chemistry Department; ,
كليدواژه :
hollow nano-spheres , chromium doped titania , rutile and anatasephase , sol-gelmethod