块状纳米银电极的制备及其电极电势的测定

Preparation of Blocky Nano-silver Electrodes and Determination of the Electrode Potentials

采用双氧水还原法制备出平均粒径不同的纳米银粒子,组装成块状纳米银电极,测定不同粒径纳米银块状电极的电极电势,讨论电极粒度对其电极电势的影响规律,结果表明,双氧水还原法可以制备出不同平均粒径的纳米银粒子,组成块状纳米银电极的纳米粒子的粒度对其电极电势有显著影响,其粒度越小相应的电极电势越低,并且其电极电势与粒径的倒数呈线性关系。

Nano-silver with different particle sizes was prepared by reduction of hydrogen peroxide, The electrode potentials of the nano-silver blocky electrodes with different diameters were determined, and the effects of the particle size on electrode potential were discussed. The results show that the nano-silver particles with different average sizes can be prepared by the reduction of hydrogen peroxide, and the electrode potential can be in/luenced by the particle size significantly, the smaller the particle size of nanoparticles, the lower the corresponding electrode potential; and there is the linear relationship between the electrode potential and reciprocal of the particle size.