| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for increasing the turn-over number of a catalyst for oxidation reaction containing group VA, group VIA, group VIIA or group VIII metal element of the periodic table. SOLUTION: Ultrafine particles of at least one kind of activation metal element selected from group IB element of the periodic table are dispersed in an oxidation reaction catalyst containing group VA, group VIA, group VIIA or group VIII metal element. |
