报告题目(中文)：Li-N-H体系储氢的反应机理及催化效应
报告题目(英文)：Li-N-H System for Hydrogen Storage:An Investigation on Reaction Mechanism and Catalytic Effect
报告人姓名：张腾飞

报告人单位(中文)：日本 北海道大学
报告时间：2015-10-15 09:00
报告地点：校本部E楼408室
报告内容简介：Hydrogen storage is a big challenge for a future hydrogen energy society. The U.S. Department of Energy (DOE) set some technical targets for on-board hydrogen storage systems. The ultimate targets for system gravimetric and volumetric capacities of hydrogen are set to 6.0 wt% and 65 g L-1 in 2020, respectively. Among the hydrogen storage materials, Li-N-H system is an attractive hydrogen storage material, which can be reversible and absorb a large amount of hydrogen (6.5wt. %). In addition, catalyst can improve its kinetics. However, the reaction mechanism and the catalytic effect have not been clearly clarified. In this research we aimed to identify the formation site of LiH and LiNH2 in the process of de/hydrogenation by using transmission electron microscopy (TEM), and then to clarify the catalytic effect. Futhermore, the relationship between desorption properties and lithium ionic mobility has been identified by using AC-impedance method.
报告人简介：张腾飞博士在日本北海道大学获硕士、博士学位，目前以JSPS特别研究员在北海道大学进行锂氮氢体系的储氢与应用研究，重点研究反应机理和催化机理。同时，研究领域涵盖了复合?金属体系储氢化合物的催化改性以及应用前景拓展。此外，在金属错体储氢化合物的锂离子电导率改性，以及作为锂离?子固态电解质的前景应用研究方面，也做了出色的工作。