报告题目：Material Physics for Artificial Photosynthesis

报告人：孔祥华 博士 （McGill University）

报告时间：2021 年 5 月 6 日（周四）14：00

报告地点：线上报告（腾讯会议：441 896 860 ）

报告摘要：

Artificial photosynthesis (AP) is a process to achieve solar to energy conversion by producing solar-fuels from green-house gases like CO2. Over several decades, extensive investigations were devoted to the fundamental understanding of AP, though practical application of it for H2O splitting and CO2 reduction remained elusive. It has been recognized that developing efficient, stable, scalable and cost-effective photocatalysts is the key to breakthrough. We found that through proper surface engineering and architecture design, III-nitrides nanowires can act as a new generation of photocatalyst material for highly efficient artificial photosynthesis, due to their unique structural, optoelectronic and catalytic properties. In this talk, I shall discuss basic materials physics associated with III-nitrides for solar-to-fuel conversion. Specifically, three recent work concerning surface physics, solid/solid interface physics and solid/liquid interface physics will be presented, focusing on improving the oxygen evolution reaction (OER), the hydrogen evolution reaction (HER) and the understanding of microscopic details of 2D material/water interfaces. These (and other) results have been very helpful to our on-going collaboration with several experimental labs for the goal of producing a practical and field-deployable solar-to-fuel system to efficiently mitigate greenhouse gases.

报告人简介：

Dr. Xiang-Hua Kong, Post-Doctoral Researcher, Center for the Physics of Materials, Department of Physics, McGill University, Montreal, Canada since 2016. She obtained her PhD from Department of Physics, Renmin University of China (collaborated trained at McGill University from 2012 to 2016) on June 2016. Her researches are engaged in the fields of computational materials science, theoretical condensed matter physics and (big) data driven science, focusing on material physics for sustainable development, novel electronic structures, Atomic Force Microscopy (AFM) & Scanning Tunneling Microscopy (STM) simulation, and single-molecule device transport. Till now, she has published 29 papers in influential journals such as Nature communications, Chem, Advanced Materials, Angewandte Chemie, Energy & Environmental Science and ACS Nano as well as a book chapter on artificial photosynthesis. According to web of science, her publications have been cited more than 3000 times so far. She also serves as a reviewer for various journals, including the Journal of Physical Chemistry Letters, ACS Applied Electronic Materials, 2D materials, Nanoscale, etc.

参考文献：

[1] Semiconductors and Semimetals. Elsevier, 2017, 97: 223-255.

[2] Nature Communications, 2018, 9 (1), 3856.

[3] Phys. Rev. Materials, 2018, 2, 081001.

[4] Energy Environ. Sci., 2019, 10.1039/C9EE01339C.

[5] npj Computational Materials, 2021, 7 (1), 1-9.

[6] Angewandte Chemie, 2021, DOI: https://doi.org/10.1002/anie.202100572.

[7] Ultrahigh stability of GaN nanostructures protected Si photoelectrode in two-electrode configuration, 2021, to be submitted.