Furthermore, three Keggin-type HPAs (H4PMo11VO40, H5PMo10V2O40, H6PMo9V3O40) were prepared according to modified ether-extraction method and impregnated onto B-type globoid silica gel carrier.

• 采用醚萃取法合成三种钒取代的杂多酸，H4PMo11VO40、H5PMo10V2O40和H6PMo9V3O40，以B型球形硅胶为载体，浸渍法制备了负载型杂多酸（HPA）催化剂，研究常温常压下甲醛的催化氧化反应。