个人简介：
张理源，中南大学博士（师从柴立元院士）、香港大学博士后、德国马普学者(MPIKG)、韩国IBS CMCM高级研究员，合作导师分别是李晓岩教授、Markus Antonietti教授和Rodney S. Ruoff教授。入选国家高层次引进人才青年项目，获得中国有色金属工业科学技术一等奖。现任中南大学冶金与环境学院特聘教授、《Green Carbon》和《EcoEnergy》青年编委，并长期担任ACS、RSC、Elsevier、Wiley等出版机构知名学术期刊审稿人。主要研究方向为先进热技术开发（焦耳热、等离子体等）及其在冶金、环境等领域的运用、炭材料合成方法学、微生物基先进材料制备方法学等。以一作或通讯在Nat. Commun., Angew. Chem. Int. Ed., Adv. Mater., Adv. Funct. Mater., Mater. Today, Appl. Catal. B等杂志发表SCI论文51篇，并获得上海同济高廷耀环保科技发展基金会奖学金。
报告内容：
Graphite films with large grain sizes have been reportedly obtained by using metal as catalysts, but the obtained graphite is mostly heavily wrinkled, thus containing defects that degrade its properties. We report the synthesis of mirror-like and large-grained graphite films with only a few nano kinks and controllable dimensions, achieved by using flat Ni-Mo alloy melts of the same lateral dimensions as the metal foils used to make this alloy melt. The graphite film exhibited few nano kinks and a mirror-like appearance because the deliberate evaporation of much of the Ni produced a porous substrate, which in turn dramatically weakened the substrate-graphite film interaction before cooling. The mirror-like graphite appears to be 100% AB-stacked with millimeter-sized grains that are much larger than the multi-micron grain size of highly oriented pyrolytic graphite and rivaled in size only by a small percentage of natural graphite. Our graphite films have an electrical conductivity of 2.25×104 S cm−1 at 300K. Tensile loading of macroscale samples showed an average Young’s modulus of 969 ± 69GPa and average fracture strength of 1.29±0.203GPa, and Frequency Domain Thermoreflectance revealed an average in-plane thermal conductivity of 2034.4 ± 68Wm−1·K−1.
