Key Laboratory of Polyoxometalate Science of Ministry of Education Faculty of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, PR China.
Chemistry. 2011 Mar 21;17(13):3657-62. doi: 10.1002/chem.201001837. Epub 2011 Feb 23.
In this paper, the preparation of ascorbic acid (AA)-doped polyoxometalate (SiW(12)-AA) microtubes is described. The SiW(12)-AA microtubes convert to heteropoly blue microtubes upon exposure to ammonia gas, which is an ammonia-triggered solid-solid redox reaction between AA molecules and polyoxometalates, and can possibly be applied to a chemical sensor for detecting ammonia and volatile organic amines. Furthermore, the SiW(12)-AA microtubes have been applied to the in situ synthesis of Ag nanoparticles (NPs) through the redox reaction between the AA component and Ag(+) ions occurring on the surfaces of the SiW(12)-AA microtubes to give silver NPs immobilized on polyoxometalate microtubes (Ag@SiW(12)).
本文描述了抗坏血酸（AA）掺杂的多金属氧酸盐（SiW(12)-AA）微管的制备。SiW(12)-AA 微管在暴露于氨气时会转化为杂多蓝微管，这是 AA 分子和多金属氧酸盐之间的氨触发的固-固氧化还原反应，可能可应用于检测氨气和挥发性有机胺的化学传感器。此外，SiW(12)-AA 微管已通过 AA 组分与 SiW(12)-AA 微管表面上的 Ag(+)离子之间发生的氧化还原反应，用于原位合成银纳米粒子（NPs），得到负载在多金属氧酸盐微管上的银纳米粒子（Ag@SiW(12)）。
