Controlling the spontaneous precipitation of silver nanoparticles in sol-gel materials

Pu-Wei Wu, Bruce Dunn, Vinh Doan, Benjamin J. Schwartz, Eli Yablonovitch, Masayuki Yamane

研究成果: Conference article同行評審

43 引文 斯高帕斯(Scopus)

摘要

The mechanisms responsible for spontaneous silver precipitation in silver-doped sol-gel materials are identified. The chemistry of the solvent phase is found to be the critical factor in controlling this phenomenon. The addition of HCl as catalyst leads to the formation of AgCl and subsequent formation of silver upon light exposure. Another factor leading to silver precipitation is the reducing capability of methanol radicals. Silver precipitation is inhibited by simply washing out the pore solvents by a solvent exchange method.

原文English
頁(從 - 到)249-252
頁數4
期刊Journal of Sol-Gel Science and Technology
19
發行號1-3
DOIs
出版狀態Published - 1 十二月 2000
事件10th International Workshop pn Glass and Ceramics, Hybrids and Nanocomposites from Gels - Yokohama, Jpn
持續時間: 20 九月 199924 九月 1999

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