| 摘要 |
PROBLEM TO BE SOLVED: To obtain a metal oxide catalyst using metals as starting materials. SOLUTION: In the preparation of the metal oxide catalyst contg. an element M (M is one or more selected from among tellurium, antimony and bismuth) and an element N (N is one or more selected from among molybdenum, tungsten and vanadium), a soln. contg. the elements M and N obtd. by allowing an oxometalate contg. the element N to react with the element M in a solvent is used. |
