Tailoring particle size and morphology of colloidal Ag particles via chemical precipitation for Ag-BSCCO composites

被引：4

作者：

Medendorp, NW

Bowman, KJ

Trumble, KP

机构：

[1] School of Materials Engineering, Purdue University, West Lafayette

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1996年 / 212卷 / 02期

关键词：

silver; silver colloids; chemical precipitation;

D O I：

10.1016/0921-5093(96)10211-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The chemical precipitation of silver particles is an effective method for tailoring the particle size and morphology. This article investigates a chemical precipitation method for producing silver colloids, and how processing parameters affected particle size, morphology and adherence. Decreasing the silver nitrate concentration during precipitation with sodium borohydride decreased the colloidal silver particle size. Decreasing the addition rate of the reducing agent produced faceted particles. Reversing the reactant addition order also changed the particle size and the morphology. Precipitated colloids demonstrated a difference between the growth-dominated and the equilibrium structures. Go-dispersing Bi-based superconducting platelets during precipitation allowed Ag colloids to preferentially nucleate on the platelets and to remain adhered even after the additional processing.

引用

页码：222 / 227

页数：6

共 18 条

[1] SIZE TAILORING OF SILVER COLLOIDS BY REDUCTION IN W/O MICROEMULSIONS [J].