一种微纳米银包铜导电粉体及其制备方法与应用
By controlling the precipitation process of copper precursors with carbon dioxide, micro/nano silver-coated copper conductive powders were prepared, solving the problems of high cost, complex operation, and insufficient antioxidant capacity of existing silver-coated copper powders. This method achieves the preparation of low-cost, high-conductivity, and good-stability micro/nano silver-coated copper powders.
CN120984877BActive Publication Date: 2026-07-17SHANGHAI JIAOTONG UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI JIAOTONG UNIV
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-17
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Figure CN120984877B_ABST
Abstract
本发明涉及一种微纳米银包铜导电粉体及其制备方法与应用，以二氧化碳作为酸碱调节剂动态调控铜的前驱体的沉淀析出过程以获得碱式碳酸铜载体材料，经银源的阳离子交换得到碱式碳酸铜负载碳酸银沉淀，经化学还原、固液分离、洗涤、干燥获得所述微纳米银包铜导电粉体。与现有技术相比，本发明方法基于CO2的酸性和沉淀化作用，操作简单、绿色环保，制备的微纳米银包铜导电粉体粒度分布窄，呈现高的导电率、低银含量和良好的稳定性。
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