【作者】 张朝平； 李熹；

【机构】 贵州大学理学院化学系；

【摘要】 以 SDS/正已醇/正庚烷/水所组成的反相微乳液为反应介质,KBH₄为还原剂分别还原 Ag⁺ 和 Cu²⁺以及 Ag⁺、Hg²⁺和 Cu²⁺的盐,制备得粒状纳米 Ag-Cu 和 Ag-Hg-Cu 复合物,对产物进行 X-射线粉末衍射（XRD）、透射电镜（TEM）、红外（IR）、差热（DTA）分析,结果表明,所得纳米 Ag-Cu 和 Ag-Hg-Cu 复合物为具有球状结构的多晶体,用 Scherrer 公式计算出样品的平均粒径为17.56nm （60℃,Ag-Cu）,23.78nm（95℃,Ag-Cu）和34.83nm（Ag-Hg-Cu）。循环伏安曲线（CV）分析表明,所得的复合物都具有良好的电容性能。通过微乳液法合成的纳米物质可以有效的减少团聚,控制微粒的组成和粒径,且操作简单,成本低。更多还原

【Abstract】 In present paper,nanometer Ag-Cu composite were prepared that the in reverse-microemulsions from composing of SDS/n-hexyl alcohol/n-heptane/water by reduced the Ag⁺ and Cu²⁺ with KBH₄ at 60℃ and 95℃ respectively.The products were characteristic by XRD,TEM and DTA, And cycle volt-ampere（CV） process was using investigation of electrochemical capability.The results were indicated the size of 17.56 and 23.78nm on dimension of Ag-Cu composite.Nano-scale Ag-Hg-Cu composite also was synthesized at the same time,which is achieve in W/O microemulsions from composing of SDS/isoamylol/n-heptane/water via deoxidization of Ag⁺、Hg²⁺ and Cu²⁺ at 95℃ using KBH₄. The product was characteristic by XRD,TEM and DTA,And cycle volt-ampere（CV） process was using investigation of electrochemical capability.The result show clearly that the its average diameter about is 34.83nm.更多还原