2018新材料国际发展趋势高层论坛

李海文

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职位/职称:

单位: 日本九州大学国际氢能研究中心

报告论坛: 新材料产业与技术投资促进国际论坛

报告题目:

简历:

李海文,博士,日本九州大学氢能源国际研究中心与碳中和能源国际研究所(I2CNER)副教授。2005年,在日本东北大学金属材料研究所从事博士后研究工作;2008年,晋升为助理教授;2011年,进入日本九州大学任副教授至今。同时担任南非国家研究基金会审查委员、瑞士国家科学基金会审查委员、日本金属学会第1分科(能源材料)会委员、日本金属学会演讲大会委员、奥尔胡斯大学客座教授,以及路易威登大学特邀客座教授等职位。主要研究方向为安全、简便、高效、低成本地储存、运输氢的材料及系统开发。主要以氢化物为中心,进行从材料合成到系统构建的广范围研究。

摘要:

Hydrogen Energy is in great need to realize a low-carbon society. Hydrogen can be produced using renewable energies, can be stored/transported in gaseous, liquid and solid ways, and can generate power via fuel cell or combustion without the emission of CO2 gas. Hydrogen, as a clean energy carrier, therefore, has been attracting increasing interest. The energy density of hydrogen per unit volume at ambient temperature and pressure is as low as 1/3400 of gasoline, which means that storage of hydrogen in a limited space is a big challenge. Therefore, development of hydrogen storage technologies is a key issue for realizing the sustainable hydrogen society. The energy density of hydrogen can be increased largely by using compression or liquefaction techniques, nevertheless, the volumetric density can not exceed 70 kg H2/m3 in principle due to the repulsive forces between hydrogen molecules. Distinct from these technologies, hydrides store hydrogen in an atomic way, reveals high potential use for hydrogen storage.
Hydrides are a fast expanding class of materials, approaching multi-functionality, in particular within energy storage. They can not only store hydrogen in the solid state, but also act as novel battery materials, both as electrolytes and electrode materials, or store solar heat in a more efficient manner as compared to traditional heat storage materials. Metal boranes M(BxHy)n, a typical example of hydrides, have been attracting increasing interest from the energy storage point of view, especially in the context of solid-state hydrogen storage and superionic conductivity. Lower boranes such as metal tetrahydroborate M(BH4)n, with hydrogen gravimetric density higher than 10 mass%, have been extensively investigated for high density hydrogen storage. M2(B12H12)n with a stable icosahedral cage structure, on the other hand, favors its potential application as superionic conductor. Recently, we found that the ionic conductivity of a bimetallic closo-borane LiNaB12H12 reaches 0.79 S/cm at 550 K above its order-disorder phase transition. This value is 10 times higher than those of its single counterpart of Li2B12H12 and Na2B12H12 at the same temperature.
In the presentation, we will give an overview of the state-of-the-art research progress on hydrides for energy applications, following the introduction of current Japan's basic hydrogen strategy and the related activities.
 

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重要日期

会议开始时间

2018-09-16

会议结束时间

2018-09-18

报到时间

2018-09-16

poster提交截止日期

2018-08-30

报告人摘要提交截止日期

2018-08-25

联系方式

王方 
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王媛
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富甘霖(参展及赞助)
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高虹(财务)
电话:029-86226599
传真:029-86282362
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