Lecturer：Dr. Hui Wu
NIST Center for Neutron Research, National Institute of Standards and Technology
Department of Materials Science and Engineering, University of Maryland
Location： Energy Building 1#, 1st Floor Conference Room
² Ph.D. 2005, University of Pennsylvania, Philadelphia, PA
Department of Materials Science and Engineering, Advisor: Professor Peter K. Davies
² M.S. 2001, Tsinghua University, Beijing, China
Department of Materials Science and Engineering
² Dual B.S. 1999, Tsinghua University, Beijing, China
Department of Materials Science and Engineering,
Department of Environmental Science and Engineering
Synthesis, characterization and development of advanced energy-related materials, including metal hydrides, complex hydrides, and metal-organic frameworks (MOFs) for applications in fuel gas storage and carbon sequestration. Special interests involve the design and preparation of novel hydride materials and determination of their crystal structures using advanced neutron/x-ray diffraction techniques; investigation and optimization of dehydrogenation/regeneration properties of hydride materials; exploration and probing of gas molecule adsorption in MOFs and their interactions with frameworks; fabrication nanoporous MOF materials optimized for fuel gas (hydrogen, natural gas, etc.) storage and carbon sequestration applications.
Successful development of hydrogen as an energy carrier will simultaneously reduce the dependence on fossil fuel and emissions of greenhouse gases and pollutants. This is especially critical in this century with increasing concerns about energy security and global warming. One of the major challenges to widespread use of hydrogen is the lack of storage materials with suitable on-board operating capacities and properties for fuel-cell vehicular applications. In this talk, I am going to present our recent work on developing novel high-hydrogen-capacity complex metal hydrides and chemical hydrides for hydrogen storage. Particularly, I will discuss our efforts to rationally search for Hδ+/ Hδ- co-existing B-N compounds. These materials exhibit remarkable dehydrogenation performances compared to conventional metal hydrides. The talk will focus on the structural studies of these materials, highlighting various aspects of crystal structure determination and crystal chemistry. The rich information obtained from the structural analysis and its implications for hydrogen storage will be discussed. If time permits, I am also going to discuss our current mechanistic understanding of gas storage in the benchmark porous metal-organic frameworks (MOFs), based on combined experimental and computational investigations. Our recent efforts to rationally search for MOFs with high gas (e.g. methane) storage capacities will also be presented, and future directions will be outlined.
Contact：DNL1901 Dong Xie（9583）