报 告 人：澳大利亚迪肯大学 李璐华+博士

邀请人：杨植

报告题目： Properties and Applications of “White Graphene”

报告时间： 2017年5月23日15:30

报告地点：学院路科技合作大楼207会议室

主要学习及工作简历：

Dr Luhua Li obtained his PhD degree (in Physics) from the Australian National University in 2012, and is currently working at Institute for Frontier Materials (IFM), Deakin University (Australia) under an Australian Research Council (ARC) Discovery Early Career Researcher Award (DECRA). He was an Alfred Deakin Research Fellow between 2013 and 2015. His current research focuses on 2D nanomaterials, especially the property and application of atomically thin BN and development of novel electrocatalysts. He has attracted research and equipment funding valued at AU$2.8m over the last 5 years. Dr Li is an expert in many analysis and synthesis techniques, such as scanning probe microscopy (SPM), transmission electron microscopy (TEM), Synchrotron-based near-edge X-ray absorption fine structure (NEXAFS) and extended X-ray absorption fine structure (EXAFS). Dr Li is the author of 4 book chapters and >60 peer-reviewed papers in international journals, such as Nature Commun., Nano Lett., ACS Nano, Angew. Chem. Int. Ed., JACS, Adv. Funct, Mater. He also serves as a referee at a regular basis for Adv. Mater., ACS Nano, Small, Nanoscale, Chem. Commun., J. of Mater. Chem. etc. He is currently an Advisory Committee of the Australian Synchrotron (SXR beamline).

讲座内容简介：

Properties and Applications of “White Graphene”

Luhua Li

Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC 3216 Australia

luhua.li@deakin.edu.au

Boron nitride (BN) nanosheets, sometimes called “white graphene”, are an important member of two-dimensional (2D) nanomaterials. They possess some properties similar to graphene but also many unique properties unavailable to graphene. For example, BN nanosheets are electrical insulator with a stable wide bandgap about 6 eV in regardless of thickness, and hence excellent dielectric substrate for graphene and MoS₂ based devices. In contrast to the intensive studies on graphene, many fundamental properties and potential applications of BN nanosheets are still waiting for experimental exploration. In this talk, my recent research progress on the unique property (e.g. oxidation resistance, thermal, mechanical, optical, dielectric and surface) to application (e.g. corrosion protection, surface enhanced Raman spectroscopy, and water treatment) of BN nanosheets will be reviewed [1-9].

As a powerful technique to precisely probe chemical environment, valence state, bond orientation etc, Synchrotron-based NEXAFS can be a valuable tool to study nanomaterials. I will also briefly introduce this technique and the use of it in my research [10-14].

Reference

[1] L. H. Li, J. Cervenka, K. Watanabe, T. Taniguchi and Y. Chen, ACS Nano 8, 1457 (2014).

[2] L. H. Li, T. Xing, Y. Chen and R. Jones, Adv. Mater. Interfaces 1, 1300132 (2014).

[3] L. H. Li, E. G. Santos, T. Xing, E. Cappelluti, R. Roldan, Y. Chen, K. Watanabe and T. Taniguchi. Nano Lett. 15, 218 (2015).

[4] L. H. Li and Y. Chen. Adv. Funct. Mater. 26, 2594 (2016).

[5] Q. Cai, S. Mateti, W. Yang, K. Watanabe, T. Taniguchi, S. Huang, Y. Chen and L. H. Li, Angew. Chem. Int. Ed. 55, 8405 (2016).

[6] Q. Cai, A. Du, G. Gao, S. Mateti, B.C.C. Cowie, D. Qian, S. Zhang, Y. Lu, L. Fu, T. Taniguchi, S. Huang, Y. Chen, R.S. Ruoff, L. H. Li, Adv. Funct. Mater. 26, 8202 (2016).

[7] A. Falin, Q. Cai, E. J. G. Santos, D. Scullion, D. Qian, R. Zhang, Z. Yang, S. Huang, K. Watanabe, T. Taniguchi, M. R. Barnett, Y. Chen, R. S. Ruoff and L. H. Li. Nature Commun. Accepted (2017).

[8] Q. Cai, D. Scullion, A. Falin, K. Watanabe, T. Taniguchi, Y. Chen, E. J.G. Santos, L. H. Li. Nanoscale 9, 3059 (2017).

[9] L. Li, L. H. Li, Y. Chen, X. J. Dai, P. R. Lamb, B.-M. Cheng, M.-Y. Lin and X. Liu, Angew. Chem. Int. Ed. 52, 4212 (2013).

[10] Y. Zheng, Y. Jiao, Y. Zhu, L. H. Li, Y. Han, Y. Chen, A. Du, M. Jaroniec, S.Z. Qiao. Nature Commun. 5, 3783 (2014).

[11] Y. Zheng, Y. Jiao, L. H. Li, T. Xing, Y. Chen, M. Jaroniec, S.Z. Qiao. ACS Nano 8, 5290 (2014).

[12] T. Xing, Y. Zheng, L. H. Li, B.C.C. Cowie, D. Gunzelmann, S.Z. Qiao, S. Huang and Y. Chen. ACS Nano 8, 6856 (2014).

[13] Y. Zheng, Y. Jiao, Y. Zhu, L. H. Li, Y. Han, Y. Chen, M. Jaroniec, S.Z. Qiao. JACS 138, 16174 (2016).

[14] Y. Zheng, Y. Jiao, Y. Zhu, Q. Cai, A. Vasileff, L. H. Li, Y. Han, Y. Chen, S.Z. Qiao. JACS 139, 3336 (2017).

Figures

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