Title: Novel Energy Conversion Nanocomposites for Electronic Information System

Speaker: Prof. Yihe Zhang

Affiliation: 

China University of Geosciences, Beijing, China

Beijing Institute of Technology, Zhuhai, Greater Bay Area Innovation Research Institute 

Abstract: This presentation explores the development of novel nanocomposites for energy conversion and storage for electronic information systems. It focus on the development and applications of nanocomposites that combine graphene with other 2D materials, polymers and inorganic components to improve energy storage and conversion efficiency. The presentation begins with the fabrication of graphene/polymer nano energy films for sensor applications, demonstrating high dielectric constants and low dielectric losses. These films are further utilized in flexible piezoelectric generators and capacitors, showcasing their versatility environmental sensing capabilities. The presentation extends to graphene/inorganic nanocomposites for energy storage, focus on graphene/hydroxide supercapacitors with remarkable capacitance retention and energy density, along with graphene/MoS2 composites for efficient hydrogen production. Photocatalytic nanocomposites for energy conversion are another significant focus, the presentation also covers the development of photocatalysts and properties, exploring the generation of reactive oxygen species in photocatalytic mechanisms. Lastly, the presentation delves into Mg based batteries nanocomposites for electronic information system, positioning Mg-ion batteries as a frontrunner for next-generation energy storage systems. The advantages of magnesium ion batteries in terms of mass capacity, volume capacity and safety make them a promising alternative. In conclusion, this report presents a comprehensive view of the role of nanocomposites in advancing energy technologies, with potential applications in electronic information systems.

Biography: 

Prof. Yihe Zhang is a professor of the school of materials science and technology of China University of Geosciences (Beijing). He obtained his Bachelor in Organic Chemical Engineering and Master degree in Material Engineering in 1986 and 2001 respectively, and gained his Ph.D. in Physical Chemistry from Chinese Academy of Sciences. He as a postdoctoral fellow from the Hong Kong Polytechnic University. He has successively served as professor, Dean, School of Materials Science and Technology, China University of Geosciences (Beijing), Chief Scientist of Resource Comprehensive Utilization and New Materials Innovation Team, Director of Beijing Key Laboratory of Material Utilization of Non-metallic Minerals and Solid Waste Resources, director of National Recycling Economy Engineering Laboratory, Deputy director of Mining Area Ecological Restoration Engineering Technology Innovation Center of Ministry of Natural Resources; Research Fellow in Hong Kong Polytechnic University and City University of Hong Kong. He has been also as visiting professor in Australia, United States of America, Germany, the Netherlands, and Canada. He has been elected as Foreign Member (Academician) of Russian Academy of Engineering (2019), Foreign Full Member of Russian Academy of Natural Sciences (2022), Fellow of Chinese Society of Micron-Nano Technology.

He serve as the Chairman of the Special Committee of Mineral Composite Materials of China Composite Materials Society, Deputy director of Solid Waste Branch of Chinese Society of Environmental Science, director of the Chinese Society of Materials Research, director of the Chinese Society of Micro and Nano Technology, director of the China Mineral Resources and Materials Application Alliance, Deputy director of the Salt Lake Environmental Resources Special Committee of the Geological Society of China. 

Adhere to the world's scientific and technological frontier of materials, he has long-term engaged the research and development in the "mineral composite materials and their application of environment, new energy and biomaterials". He has published more than 680 peer review international journal papers (citations more than 28000 times, H index 88), selected as "Highly Cited Researcher" by Clarivate since 2019, and the top 2% of the world's top scientists by Stanford University since 2019 to now. He has published 10 monographs as the chief author, and authorized over 100 inventive patents, some patents had been Technology transferred. He has won many science and technology awards. He always serves as a reviewer for many international journals.