Статья

Electrochemical Synthesis of Silver Nanoparticles under Protection of Poly(<i>N</i>-vinylpyrrolidone)

Bingsheng YinKey Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100, China; Department of Chemistry, Shandong University, Jinan 250100, China; Testing Center, Shandong Teachers' University, Jinan 250014, China; and State Key Laboratory for Corrosion and Protection of Metals, Shenyang 110015, ChinaHouyi MaKey Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100, China; Department of Chemistry, Shandong University, Jinan 250100, China; Testing Center, Shandong Teachers' University, Jinan 250014, China; and State Key Laboratory for Corrosion and Protection of Metals, Shenyang 110015, ChinaShuyun WangKey Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100, China; Department of Chemistry, Shandong University, Jinan 250100, China; Testing Center, Shandong Teachers' University, Jinan 250014, China; and State Key Laboratory for Corrosion and Protection of Metals, Shenyang 110015, ChinaShenhao ChenKey Laboratory for Colloid and Interface Chemistry of State Education Ministry, Shandong University, Jinan 250100, China; Department of Chemistry, Shandong University, Jinan 250100, China; Testing Center, Shandong Teachers' University, Jinan 250014, China; and State Key Laboratory for Corrosion and Protection of Metals, Shenyang 110015, China

2003en

ABI

Аннотация

A novel electrochemical method for size-controlled synthesis of spherical silver nanoparticles in aqueous phase was developed for the first time. In this method the poly(N-vinylpyrrolidone) (PVP) was used as the stabilizer for the silver clusters. PVP was found to greatly promote silver particle formation rate and significantly reduce silver deposition rate, thereby making monodispersed silver nanoparticles to be synthesized very convenient by means of electroreduction of the bulk silver ions. It is possible to control the particle size by adjusting electrolysis parameters and to improve homogeneity of silver particles by changing the composition of electrolytic solutions. The results also showed the fact that the rate of transfer of PVP-stabilized silver clusters from the cathodic vicinity to the bulk solution played an important role in preparation of the monodispersed nanoparticles. In addition, the silver nanoparticles synthesized electrochemically may be directly employed to prepare the silver-doping tin electrodeposited coating.

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Идентификаторы

DOI: 10.1021/jp0349031

Цитирования и источники

Цитирований: 2Использованных источников: 0

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