Preparation of Silver Nanoshells on Silica Particles by a Simple Two-step Process

Yu ZHANG Ming MA Ning GU Ling XU Kun Ji CHEN

引用本文: Yu ZHANG,  Ming MA,  Ning GU,  Ling XU,  Kun Ji CHEN. Preparation of Silver Nanoshells on Silica Particles by a Simple Two-step Process[J]. Chinese Chemical Letters, 2004, 15(8): 1005-1008. shu
Citation:  Yu ZHANG,  Ming MA,  Ning GU,  Ling XU,  Kun Ji CHEN. Preparation of Silver Nanoshells on Silica Particles by a Simple Two-step Process[J]. Chinese Chemical Letters, 2004, 15(8): 1005-1008. shu

Preparation of Silver Nanoshells on Silica Particles by a Simple Two-step Process

  • 基金项目:

    This work was supported by the National Natural Science Foundation of China (No.50202009, 60171005) and the High Technology Research Subject of Jiangsu Province in China (BG2001006). We are also very grateful to Prof. Jianmin Hong of Center of Analysis and Test, Nanjing University for his helping in TEM experiments.

摘要: A simple two-step method was developed to prepare silver nanoshells coated on silica paticles.The method involves two steps:concentration of reaction precursor (AgNO3) on particle surfaces and subsequent reduction by formaldehyde.The obtained composite particles were characterized by TEM, ED, and SEM-EDS measurements.The results show that the silver nanoshell is coated on silica particle surface in the form of a polycrystalline (cubic structure) layer with average thickness of 20 nm and weight percentage of 19%.

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  • 收稿日期:  2003-07-22
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