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活性碳纤维载银工艺及其表面银颗粒的形态特征
Silver Coating Process of Activated Carbon Fiber and Its Surface Morphology
【摘要】 以自制粘胶基活性碳纤维(ACF)为载体,通过真空浸渍和真空热分解的方法在其表面沉积银,制得了载银活性碳纤维(ACF(Ag))。研究了载银工艺参数对ACF(Ag)的银含量、表面银颗粒大小、分布及形态的影响规律,提出了银颗粒的形核与长大机制;此外,还分析了银颗粒与ACF结合力的影响因素。
【Abstract】 Viscose based activated carbon fiber(ACF) was prepared by pretreatment,carbonization,activation.Silver metal was introduced to the ACF from silver nitrate (AgNO 3) aqueous solutions by immersion process,followed by vacuum decomposition process,leading to activated carbon fiber supporting silver(ACF(Ag)).Influence of process parameters,concentrations of AgNO 3 solutions,immersion time and decomposition temperature on the silver particle size,distribution and morphology was investigated.A mechanism about nucleation and growth of silver particles was proposed in this paper.Factors affecting bonding strength between silver particles and the ACF were also analyzed in this study.
- 【文献出处】 材料工程 ,JOURNAL OF MATERIALS ENGINEERING , 编辑部邮箱 ,1998年09期
- 【分类号】TB333
- 【被引频次】9
- 【下载频次】136