以Keggin结构的几类杂多酸和三乙胺(TEA)为原料,通过简单的酸碱反应合成了相应杂多酸的TEA盐.并以它们作为催化剂,30％ H2O2作氧化剂,在不使用长链相转移剂的条件下,研究了它们催化苯甲醇选择氧化制备苯甲醛的反应性能.结果表明,该类催化剂在苯甲醇的选择氧化反应中具有比相应杂多酸更高的催化活性或选择性.其中[TEAH] H2 PW12O40为最佳催化剂,在适宜的反应条件下,该催化剂上苯甲醇转化率可达99.5％以上,苯甲醛选择性达～100％.催化剂可以被分离和循环使用多次,活性、选择性基本不变.用水作溶剂,避免了有机溶剂的使用,是一个高效、绿色的苯甲醛选择氧化体系.
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