宋永辉
- Personal Information
- Name (Pinyin): songyonghui
- School/Department: 冶金工程学院
- Education Level: With Certificate of Graduation for Doctorate Study
- Business Address: 工科楼1003
- Contact Information: 邮箱 : syh1231@126.com
工作电话 : 029-82201750
- Degree: Doctoral degree
- Professional Title: Professor
- Status: Employed
- Academic Titles: 西安建筑科技大学冶金工程学院教授,博士生导师。
- Alma Mater: 西安交通大学
Novel preparation of silver-coated copper in aqueous solution
Release time:2024-08-09
Hits:
- Affiliation of Author(s):
- 化学与化工学院
- Journal:
- Materials Science Forum,
- Key Words:
- 中文关键字:铜,英文关键字:Copper particles; Silver-coated; Deposition proces
- Abstract:
- Hollow and solid spherical silver-coated copper powders with size of 1μm were facilely
prepared by the reduction of silver nitrate in the polyvinyl pyrrolidone (PVP) dispersed copper
hydrosol solution at room temperature in the presence of hydrazine hydrate. Scanning electron
microscopy and X-ray diffraction were conducted to investigate the formation process of
silver-coated copper core-shell particles. The results showed that the absorption and deposition of the
Ag nuclei initially occurred at the active sites on the core surfaces as seeds which urged the further
deposition of silver species to form sprinkled-structure core-shell particles. During the growth of the
silver shell, the dissolution of copper core would result in the formation of hollow spherical particles,
while the hydrazine hydrate would help to generate the solid spherical silver-coated copper powders.
- Note:
- 宋永辉
- First Author:
- 兰新哲,songyonghui
- Indexed by:
- Journal paper
- Volume:
- 卷:658
- Issue:
- 期:
- Page Number:
- 页:173-176
- Translation or Not:
- no
- Date of Publication:
- 2010-07-01