Customizing the Structure of 2D Materials for Optimum Optoelectronic and Electrochemical Functionality

Date

Feb 14, 2024

Time

1:00 PM - 3:00 PM

Speaker

Zhengtang Luo

Affiliation

Hong Kong University of Science and Technology (HKUST)

Series

TUD nanoSeminar

Language

en

Main Topic

Physik

Other Topics

Physik

Host

Arezoo Dianat

Description

Our laboratory has developed several strategies to tailor the growth of 2D materials to suit various applications. Specifically, we have modified the structure of materials like graphene, hBN, MoTe2, and MoS2 at the atomic level to enhance their properties for designated applications. Our main strategy is to develop techniques such as seeded growth and edge-epitaxial to synthesize a range of 2D materials and their heterostructures. With the desired properties, we can use the tailored materials for optoelectronic application and more recently on the electrochemical application of single transition metal atoms supported on 2D materials for efficient catalysis. To compare with the experimental results, we have used the grand canonical potential kinetics formulation of quantum mechanics to predict the reaction mechanism and kinetics of graphene-supported Ni-single atom catalysts as a function of applied potential, to identify the active center. Our work in modifying the growth and structure of 2D materials, as well as exploring their potential applications, has contributed to the advancement of materials science and engineering.
 
 
 
 References
 
 1. Zhang, K., She, Y., Cai, X., Zhao, M., Liu, Z., Ding, C., Zhang, L.,* Zhou, W., Ma, J., Liu, H., Li, L.-J.*, Luo, Z.*, Huang, S.* Epitaxial substitution of metal iodides for low-temperature growth of two-dimensional metal chalcogenides. Nat. Nanotechnol., 2023, 18, 2023, 448–455.
 
 2. Md D. Hossain , Y. Huang , T.H. Yu , William A. Goddard II* and Z. Luo*, Reaction mechanism and kinetics for CO2 reduction on nickel single atom catalysts from quantum mechanics, Nature Comm. 10.1038/s41467-020-16119-6

Links

• More information

Last modified: Feb 26, 2024, 7:36:44 AM