General method of synthesis for metal nanoparticles
General method of synthesis for metal nanoparticles
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DOI：
10.1007/s11051-004-6575-2
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发表时间：
2004-08-01
影响因子：
2.5
通讯作者：
Pal, T
中科院分区：
文献类型：
--
作者：
Panigrahi, S;Kundu, S;Pal, T
采用湿化学法合成了糖辅助稳定的单金属纳米颗粒。对不同糖的还原能力进行明智的操作表明，对颗粒大小有影响，这证实了吸光度峰位置的变化和TEM分析。前驱体溶液在固体表面的蒸发（强金属-载体相互作用），导致形成较小的颗粒。在实验条件下，分别制备了尺寸约为1、3、10和20 nm的球形纳米颗粒，分别用于金、铂、银和钯。人们发现果糖是最适合合成小颗粒的糖，并且可以连续数月保持稳定。
Sugar-assisted stable monometallic nanoparticles were synthesized by wet chemical method following a general scheme. Judicious manipulation of the reducing capabilities of different sugars has shown to have a bearing on the particle size that corroborates the shift of the absorbance peak positions and TEM analysis. Evaporation of the precursor solutions on the solid surface (strong metal-support interaction), led to the formation of smaller particles. Under the experimental condition, spherical nanoparticles of approximately 1, 3, 10 and 20 nm sizes were prepared reproducibly for gold, platinum, silver and palladium, respectively. Fructose has been found to be the best suited sugar for the synthesis of smaller particles and remained stable for months together.