Nanostructured composites of mesoporous carbons and boranates as hydrogen storage materials
Nanostructured composites of mesoporous carbons and boranates as hydrogen storage materials
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DOI：
10.1016/j.jallcom.2010.10.098
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发表时间：
2011-09
影响因子：
6.2
通讯作者：
A. Ampoumogli;T. Steriotis;P. Trikalitis;D. Giasafaki;E. Bardají;M. Fichtner;G. Charalambopoulou
中科院分区：
文献类型：
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作者：
A. Ampoumogli;T. Steriotis;P. Trikalitis;D. Giasafaki;E. Bardají;M. Fichtner;G. Charalambopoulou
氢化物的纳米限制作为一种有效的方法，正在受到相当大的关注，以减轻不利的热力学性质的复杂的氢化物阻碍其在储氢技术中的应用。本工作采用湿化学法将NaBH_4和Mg（BH_4）_2粒子引入到有序的介孔碳支架的多孔网络中，该支架具有均匀的孔，孔径为3.5nm，高比表面积和大孔容。在所有情况下，两种催化剂的成功限制清楚地导致其热分解性能的显著改善，支持粒度和氢输送性能之间的直接相关性。
Nanoconfinement of hydride compounds is receiving considerable attention as an effective method to alleviate the unfavourable thermodynamic properties of complex hydrides hindering their technological application in hydrogen storage. In this work wet-chemistry routes are employed for the incorporation of NaBH4and Mg(BH4)2particles in the porous network of an ordered mesoporous carbon scaffold offering uniform pores with a primary size of 3.5nm, high surface area and large pore volume. The successful in all cases confinement of the two hydrides leads clearly to a noticeable improvement of their thermal decomposition properties, supporting the direct correlation between particle size and hydrogen delivery performance.