Title：Hydrogen production by electrolysis of water with multi-metal nanomaterials

Time：Mar. 11, 2023 9:30-11:00

Location:https://meeting.tencent.com/dm/wIuisy8rJQ7Q

ID：522-588-468

Speaker：Shaoyun Hao

Host： Prof. Lijun Zhang

Abstract：

Hydrogen is an ideal clean energy, and the global demand for hydrogen is increasing year by year. At present, hydrogen production mainly relies on fossil energy, such as hydrogen production by natural gas reforming and coal gasification. Although these methods have high efficiency, they have the problem of secondary pollution and produce a large amount of carbon dioxide. Therefore, the development of green and efficient hydrogen production methods is of great significance for solving energy and environmental problems and promoting the sustainable development of chemical industry. Electrolyzed water hydrogen production technology is a promising "green hydrogen" preparation technology due to its green, mild conditions, and sustainable. Hydrogen production by electrolysis of water includes the hydrogen evolution reaction (HER) that occurs at the cathode in alkaline solution or pure water system and the oxygen evolution reaction (OER) that occurs at the anode. The core problem of hydrogen production by electrolysis of water is how to realize the efficient conversion of electrical energy to chemical energy. Through the analysis of the electrochemical reaction thermodynamics and kinetics of electrolyzed water, the key to improving energy conversion efficiency is how to achieve industrial-grade current density at low voltage. Nano-electrocatalyst materials are the core of water electrolysis, and play a decisive role in the overpotential of electrolysis water reaction and the energy conversion efficiency of the system.

Introduction to the speaker：

Dr. Shaoyun Hao obtained his Ph.D. in College of Chemical and Biological Engineering, Zhejiang University (China). He is currently a postdoc researcher at the Department of Chemical and Biomolecular Engineering, Rice University, (US). He has published as the first/co-first and corresponding author high-impact journals including Nature Nanotechnology (1), Nature Communications (2), ACS Energy Letters (1), Applied Catalysis B: Environmental (1), Chemical Engineering Journal (1), ACS Appl. Mater. Interfaces (1), and ACS Sustainable Chem. Eng. (2). His main research interests focus on Nano-catalyst preparation engineering, electrochemical reactor, membrane electrode design and reaction engineering.