将不同比例的氧化石墨烯(GO)和硝酸银混合,采用水合肼一步还原制备石墨烯/纳米银(RGO/Ag)复合材料.采用UV-vis、XRD、FTIR和SEM对RGO/Ag复合材料结构组成进行表征分析,并结合热流量和结构变化研究其构成和热处理工艺对导电性的影响.结果表明:Ag基本以类似球形与石墨烯(RGO)复合;RGO/Ag复合材料的导电性与其构成有很大关系,只有当GO加入量小于50 wt％时,Ag含量的提高和热处理工艺的优化可以明显改善复合材料的导电性,其中,GO加入量为16 wt％的RGO/Ag片方阻值可达到8 mQ/口;当GO加入量高于50 wt％时,复合材料导电性与RGO接近,受Ag含量的提高和热处理工艺优化的影响较小.
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