钨磷、钨硅杂多酸及其盐是重要的酸催化剂,它们都含有B酸中心,它来源于结构内质子、阳离子电场中结晶水离解出的质子,可在还原金属离子(如Ag~+)过程中释放出H~+。也有杂多酸(盐)含有L酸的报道,认为它来源于易于接受电子对的抗衡金属阳离子,如AlPW_(12)O_(40)中的Al~(3+),以及在高温加热中发生部分Mo=O或Mo—O—Mo键解体后裸露出的Mo表 Tungstophosphoric, tungstosilicic heteropolyacid and their salts are important acid catalysts, all of which contain B acid center, which is derived from protons in the structure and protons which are dissociated by the crystal water in the electric field of the cation, and can be used in the reduction of metal ions such as Ag ~ +) Release of H ~ + process. There are also reports of heteropolyacids (L) containing L acids that are believed to originate from readily acceptible electron counterbalanced metal cations, such as Al ~ (3+) in AlPW_ (12) O_ (40) and in heating at high temperatures Partial Mo = O or Mo-O-Mo bond after the naked body exposed Mo table