A METHOD OF MAKING PARTICLES OF METAL OXIDE HAVING A LARGE CRYSTALLINE PHASE

摘要

The present invention is a method of making crystalline metal oxide particles of a substantially pure crystalline phase, having the steps of: (a) preparing an aqueous solution having a metal salt, and a phase controlling agent; and (b) heating the aqueous solution to a temperature and for a time sufficient to form the crystalline metal oxide particles of the substantially pure crystalline phase. The crystalline metal oxide is defined by a crystallite diameter greater than about 10 nm. The present invention includes use of a phase controlling agent in the aqueous solution. An advantage of the present invention is to obtain substantially pure phase in less than a minute.