| 报告题目： |
Novel Structured Carbon Materials under High Pressure |
| 报告人： |
刘冰冰 教授 |
| 报告人单位： |
吉林大学超硬材料国家重点实验室 |
| 报告时间： |
2019年6月6日 星期四 15:00 |
| 报告地点： |
图书馆主馆B区五楼学术报告厅（B501） |
| 邀请人： |
付英双 教授 |
| 报告摘要： |
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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 structural phase transition 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.
References
[1]. Du MR,Yao MG, Dong J, etal, "New ordered Structure of Amorphous Carbon Cluster Induced by Fullerene-Cubane Reactions", Adv Mater, 2018, e1706916
[2]. Yang X G, Yao MG, Wu XY, et al, Novel superhard sp3 carbon allotrope from cold compressing C70 peapods. Phys Rev Lett, 2017,118,245701
Wang L, Liu BB, Li H, et al. Long-ranged ordered carbon clusters: a crystalline materials with amorphous building blocks, Science 2012 ,337, 825.
[2]. Cui W, Yao MG, Liu SJ, et al. A new carbon phase constructed by long range ordered carbon clusters from compressing C70 solvates, Adv Mater, 2014, 26, 7257
[3]. Yao MG, Cui W, Du MR et al, Tailoring building blocks and theire boundary interaction for the creation of new, potentially superhard carbon materials, Adv Mater, 2015, 27, 3926 |
| 报告人简介： |
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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，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200 余篇。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。 |
