报告题目: Novel Structured Carbon Materials under High Pressure
报告人: 刘冰冰 教授 (吉林大学超硬材料国家重点实验室)
摘 要：Design and synthesis of new carbon materials have been attracting intensive attention due to their application in various fields. The study of carbon nano materials under high pressure provides us a very effective method to the creation of new carbon materials, especially superhard material which is hardly discovered at ambient condition because of the appearance of nanometer scale size effect and the novel high pressure behavior. Deeply understanding those unusual high pressure structures and physical phenomena also unveils new aspects of the intrinsic physics of nanomaterials. Fullerene, for example C60 is an important member and a representative zero-dimensional nano material in carbon family which has twice as much bulk modulus as diamond. It provides us an ideal carbon source to study novel phase and design new carbon materials induced by high pressure. In this presentation, several examples on high pressure induced novel structures in recently studied typical nano-confined fullerene will be outlined, including unique long range ordered crystal with amorphous nano clusters as building blocks (OACC) in solvated C60 and C70 crystals which brings new physical insight to understand order and disorder concept and new approach to design superhard carbon materials, a new carbon allotrope with a fully sp3 bonded monoclinic structure (termed V carbon) from compressed C70 inside of single wall nanotubes (C70 peapod). These findings present a new strategy for constructing new carbon material with application of high pressure and nano-carbon material as building blocks.
报告人简介：刘冰冰，吉林大学教授。1989年获吉林大学物理系学士学位，1995年在吉林大学超硬材料国家重点实验室获博士学位并留校工作，期间赴瑞典于默奥大学进行了两年博士后研究，现任吉林大学超硬材料国家重点实验室主任。长期从事高压物理和纳米材料的基础研究，主持了国家重点研发专项项目、国家自然科学基金重点项目等，在高压新结构、新性质以及高压新材料研究方面取得了系列结果,在Science、PNAS、PRL、Adv Mater 等刊物上发表SCI论文近400篇。教育部长江学者、国家杰出青年基金获得者、中组部“万人计划”人选、中国青年女科学家奖获得者。