A simple and feasible in-situ reduction route for preparation of graphene lubricant films applied to a variety of substrates
A simple and feasible in-situ reduction route for preparation of graphene lubricant films applied to a variety of substrates
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一种简单可行的原位还原路线，用于制备应用于各种基材的石墨烯润滑膜
DOI：
10.1039/c2jm16656a
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发表时间：
2012-01-01
影响因子：
--
通讯作者：
Wang, Jinqing
中科院分区：
文献类型：
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作者：
Mi, Yongjuan;Wang, Zhaofeng;Wang, Jinqing
在这项工作中，我们提出了一种简单可行的方法，用于在不同的衬底上原位还原和组装石墨烯润滑膜。我们采用氧化石墨烯水溶胶作为前驱体溶液，创造性地引入聚多巴胺的粘附性涂层，这种涂层可以牢固地结合到广泛的衬底上，作为活性过渡层和原位还原剂，目的是在不添加外源还原剂的情况下在其上获得还原的氧化石墨烯(RGO)薄膜。实验结果表明，rGO纳米片已成功地组装到衬底上，原位合成的rGO薄膜具有良好的形貌、优异的减摩耐磨性能。
In this work, we present a simple and feasible method with broad applicability for the in-situ reduction and assembly of graphene lubricant films on various substrates. We adopt graphene oxide hydrosol as the precursor solution and creatively introduce an adherent coating of polydopamine that can be firmly bonded onto a wide range of substrates and acts as an active transition layer and in-situ reducing agent, aiming at obtaining the reduced graphene oxide (rGO) films thereon without addition of exogenous reducing agent. Experimental results prove that rGO nanosheets have been successfully assembled onto the substrates and the in-situ synthesized rGO film presents excellent morphology, outstanding friction reduction and wear resistance properties.