During the reaction, the coordination between the Ag+ and the N or O atom leads to the formation of regular shape of POMs nanoparticles.

• 聚丙烯酸，聚乙烯吡咯烷酮这样的聚电解质中含有大量的氮、氧等高配位活性的原子，它们与良离子之间存在著较强的配位作用。