硅酸盐学报2012，Vol.40Issue(2)：312-316,5.
硅酸盐玻璃中银铜双金属纳米颗粒的精细结构
Fine Structure of Ag-Cu Bimetallic Nanoparticles in Silicate Glass
摘要
Abstract
Bimetallic Ag-Cu nano-particles were prepared via ion-exchange and subsequently thermal treatment. The formation process and local structure of Ag-Cu nano-particles in composite materials were characterized by extended X-ray absorption fine structure technique and ultraviolet-visible absorption spectroscopy, respectively. The results indicate that Ag and Cu nano-particles exist in the silicate glass. Compared to the corresponding value of Ag foil, the nearest-neighboring Ag-Ag distance expanded due to the tensile stress in the synthesis process. The Cu-Cu coordination appeared, inducing a decrease of the Cu-O coordination number. The Cu-Cu coordination number was smaller than the corresponding value of Cu foil, and the Cu-Cu distance contracted compared to the corresponding value of Cu foil.关键词
银铜双金属纳米颗粒/离子交换法/硅酸盐玻璃/X射线吸收精细结构谱Key words
silver/copper nanoparticles/ion-exchange/silicate glass/X-ray absorption fine structure technique分类
通用工业技术引用本文复制引用
赵建富,杨修春,黄敏,姜政,黄宇营..硅酸盐玻璃中银铜双金属纳米颗粒的精细结构[J].硅酸盐学报,2012,40(2):312-316,5.基金项目
国家自然科学基金（50672069）资助项目. （）
