名师大讲堂（四十九）预告

报告人：澳大利亚Monash大学 李丹(Dan Li) 教授

报告题目：What is unique about chemically converted graphene?

报告时间：1月14日上午9:00

报告地点：工学三号馆217

李丹教授简介：

李丹，澳大利亚Monash大学材料科学系教授；1999年获中国电子科技大学材料物理与化学专业博士学位，作为博士后研究员曾在南京理工大学、美国华盛顿大学纳米技术中心、加州大学洛杉矶分校(UCLA), 加州纳米系统研究院从事纳米材料的研究工作。2006年获得澳大利亚科学委员会以伊丽莎白女王二世命名的高级研究员奖（Senior ARC QE II Research Fellowship），到澳大利亚电子材料科学国家重点实验室(Australian Research Council Centre of Excellence for Electromaterials Science, ACES) 担任骨干研究员, 现为澳大利亚Monash大学材料科学系教授。已在Science, Nature Nanotechnology，Nature Materials，Nano Letters，Advanced Materials，Journal of the American Chemical Society等国际顶级杂志上发表多篇高水平论文，他引超过10000次，在国际材料科学领域产生了广泛的影响。

讲座内容摘要：

What is unique about chemically converted graphene?

From a chemistry/materials point of view, graphene is a giant conductive polymer. Chemically modified graphene can be prepared in large quantity by chemical conversion of natural graphite through the well-known graphite oxide. Compared with pristine graphene, chemically converted graphene (CCG) or reduced graphene oxide has very unique chemical and physical properties. In this talk, I will highlight a few of these properties and particularly demonstrate how we can take advantage of the unique chemical molecular structure of CCG and supramolecular interactions to synthesize two classes of unprecedented graphene-based soft materials: the densest yet highly porous carbon gel film and the ultralight yet super-elastic conductive aerogel. I will also show how these unique graphene gels can lead to record-high-energy density supercapacitors, new generation of separation membranes and enable the successful synthesis of mechanically robust, stimuli-responsive and electroconductive polymer hydrogels that are unattainable with the traditional techniques.