ICEEES2025演讲嘉宾信息如下：
Dr. Wencai Yang, Professor
Dr. Wencai Yang, Professor, Academician of Chinese Academy of Sciences
Institute of Geo-science, Zhejiang University, Hangzhou, China
Biography: Dr. Wencai Yang, a professor of Institute of Geosciences in Zhejiang University, researching and teaching on Earth imaging and geodynamics. He was born in Guangdong province in 1942, graduated from Beijing Geology Institute in 1964, and got Ph.D from McGill University in Canada in 1984. He was a Royal Fellowship member of UK in 1987 and academician of Chinese Academy of Science since 2005, and has been an executive committee member of Chinese Geological Society and Chinese Geophysical Society; the Chief-editor of Geological Review since 2008.
Topic: On the Hydrogen Energy, New Materials and Mineral of Rare-Metal Deposits
Abstract: The solid Earth is the center of energy and mass of the geo-space. Three-dimensional physical property imaging of the upper mantle reveals the movement patterns of matter in the Earth's interior, and the following three inferences world be drawn from the movement patterns. (1) The Earth came from the hydrogen-helium clouds, and a large amount of hydrogen-helium is still preserved in the interior of the Earth, which has become the main material components in the Earth’s fluid-channel networks. The hydrogen-helium reserve in the deep Earth can still be great and incomputable. The exploitation of hydrogen-helium energy in the deep part of the Earth is more beneficial to the sustainable development better than the extraction of hydrogen from seawater. (2) The exploitation of hydrogen-helium energy in the deep part of the Earth requires the development of ultra-deep drilling of about 20 km. The ultra-deep drilling requires new materials of preservation of rigidity at high temperatures. Research on this kind of new materials is key for the exploitation. Where does this new kind of materials come from? It is necessary to look at the periodic table of chemical elements. There is a certain law of element formation in the Earth: elements with superposition of atomic number by 2 and 4 are more abundant, and elements with higher atomic number were generated later in the Earth. As the later elements were generated, their structures became more complex with more complicate properties. The expected new materials for the exploitation can be found from elements with some high atomic numbers that preserve rigidity at high temperatures. Rare-metal elements belong to what we want. (3) At present, half of China's lithosphere is formed relatively young, so it is rich of high atomic numbers, especially the rare-earth ores. Three-dimensional imaging shows that the reserves of the Baiyun-Obo mine in Baotou are account to have half of the world's rare-earth minerals, which was formed by long-term geological actions of the diapir of the asthenosphere 250 million years ago. At present, the exploitation and applications of rare-earth elements in Baotou City have just formed a preliminary productive force, and the prospects for its development are huge and bright. The use of rare-metal minerals and then further develop the new materials will form a complete and very advanced manufacturing chain in China.
Dr. Mingxin Liu, Professor
Dr. Mingxin Liu, Professor
State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, China
Biography: Dr. Mingxin Liu was born on Oct. 1989. His B.Sc. thesis was fulfilled from Tsinghua University with Prof. Yongge Wei and Prof. Lei Liu. He then finished his PhD at McGill University supervised by Prof. Chao-Jun Li. After finishing his PhD he completed his postdoctoral study with Prof. Zetian Mi from the University of Michigan. He began his independent career as a full professor at Lanzhou University by the end of 2020. His research interest is the application of 'green' reagents in synthetic methodology and their sustainable application in Chemical Biology.
Topic: Nature-Chemistry Relationship Involving Oxygenated Organic Compounds
Abstract: Oxygenated organic compounds (OOC), represented by alcohols, carbonyls, and their derivatives, are ubiquitous in both synthetic realm and natural molecules. Therefore, the study of OOC serves as an ideal platform to further investigate the tie between Chemistry and Nature. During the past 5 years, we have revealed various toxicological effects of -OH functional group both in vivo and in vitro using polyethylene as the platform. In addition, we have developed a series of more sustainable synthetic methodologies for OOCs that minimize the environmental impact on nature and the society. The interdisciplinary study was aiming to further advance the development of green chemistry and strengthen the tie between the environment and the society.
