报告题目： Structural Engineering of Layered Nanomaterials by Lithium Intercalation Chemistry

报 告 人：香港城市大学 谭超良 教授

报告时间：2022年01月07日（周五）下午16:15

报告地点：莫干山校区新材料大楼C306会议室 （专家进行线上报告）

邀 请 人：高分子材料与工程研究所 曹澥宏 教授

谭超良博士，香港城市大学电机工程系助理教授。博士毕业于新加坡南洋理工大学（导师张华教授），博士后工作于加州大学伯克利分校（导师Ali Javey教授）。他长期从事二维纳米材料与器件、二维复合纳米材料及层状纳米材料的结构工程。共发表论文超过130篇，其中第一或通讯作者论文超过40篇，包括Nat. Nanotechnol.、Nat. Rev. Mater.、Chem. Rev.、Chem. Soc. Rev.、Nat. Commun.、J. Am. Chem. Soc.、Angew. Chem. Int. Ed.、Adv. Mater.、Adv. Funct. Mater.、ACS Nano、Small等；总引用超过19300次，个人H因子61。谭教授荣获2021年国家优秀青年基金（港澳），2018-2021年连续4年入选“全球高被引学者”榜单（科睿唯安），2020-2021连续两年获斯坦福大学发表的工程领域世界前2%科学家和2021年Journal of Materials Chemistry A期刊“新锐科学家”等荣誉；并长期担任Nat. Commun.、Adv. Mater.、J. Am. Chem. Soc.、等独立审稿人，担任《物理化学快报》和《中国化学快报》青年编委。

报告内容摘要：

Layered materials are a class of materials which possess strong in-plane covalent chemical bonding within each atomic layer and weak out-of-plane van der Waals (vdW) interactions between adjacent layers. The nature of vdW gap between neighboring layers allows the intercalation of various foreign species, specially alkali metal ions (e.g. Li+), into layered materials without breaking the in-plane covalent bonds.^[1] In this talk, I will present our recent progress made in the structural engineering of layered nanomaterials by lithium intercalation chemistry. Firstly, I will present the exfoliation of layered materials by lithium intercalation treatment to decouple the vdW interactions between adjacent layers for preparation of a series ultrathin 2D materials.^[2-4] Secondly, I will present the phase engineering of layered transition metal dichalcogenides by the lithium intercalation treatment.^[5-7] Thirdly, I will present the defect/interlayer distance engineering of layered metal oxides by the lithium intercalation treatment.^[8-9] Finally, I will give a few examples to highlight the advantages on structural engineering of layered materials by the lithium intercalation for applications like photothermal cancer therapy and aqueous Zn-ion battery.^[3,7,8,9]

References

[1] C. Tan, H. Zhang*, et al. Chem. Rev., 2017, 117, 6225.

[2] C. Tan, L. Wang*, Z. Liu*, H. Zhang*, et al. J. Am. Chem. Soc., 2015, 137, 10430.

[3] C. Tan, Z. Liu*, Y. Zhao*, H. Zhang*, et al. Angew. Chem. Int. Ed., 2017, 56, 7842.

[4] Z. Lai, C. Tan*, H. Zhang*, et al. Small, 2021, 17, 2006866.

[5] C. Tan, C. Kloc*, H. Zhang*, et al. Small, 2016, 12, 1866. 

[6] C. Tan, H. Zhang*, et al. Adv. Mater., 2018, 30, 1705509.

[7] Z. Zhou, B. Li*, Z. Luo*, L. Ma*, C. Tan*, et al. Small, 2020, 16, 2004173.

[8] Z. Zhou, L. Cheng*, C. Tan*, et al. Small, 2021, 17, 2007486.

[9] J. Zhao, J. Gao*, Z. Zeng*, C. Tan*, et al. ACS Nano, 2021, 15, 10597.