Material properties of MBH_4 (M = Li, Na, and K)

S. Orimo; Y. Nakamori; A. Zuttel

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Material properties of MBH_4 (M = Li, Na, and K)

机译：MBH_4的材料属性（M = Li，Na和K）

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Fundamental researches on complex hydrides are recently of great importance to develop practical hydrogen storage materials with higher gravimetric hydrogen densities than those of conventional materials. In this preliminary report, we discuss the correlation between B-H atomistic vibrations in [BH_4]~--anion and melting temperatures of MBH_4 (M = Li, Na, and K), on the basis of the experimental results combined the Raman spectroscopy and differential scanning calorimetry. Both the B-H stretching modes v_1 and B-H bending modes v_2, decrease in the order of LiBH_4 > NaBH_4 > KBH_4, except for v_1 of LiBH_4. On the other hand, the melting temperatures under hydrogen atmosphere as an index of hydrogen desorption (decomposition) temperatures decrease in the opposite order.

机译：最近，对于复杂氢化物的基础研究对于开发比常规材料具有更高的重量氢密度的实用储氢材料非常重要。在这份初步报告中，我们基于拉曼光谱和微分的实验结果，讨论了[BH_4]〜-阴离子中的BH原子振动与MBH_4（M = Li，Na和K）的熔化温度之间的相关性。扫描量热法。除了LiBH_4的v_1以外，B-H拉伸模式v_1和B-H弯曲模式v_2均按LiBH_4> NaBH_4> KBH_4的顺序减小。另一方面，作为氢解吸（分解）温度的指标，氢气氛下的熔融温度以相反的顺序降低。

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《Materials Science and Engineering. B, Solid-State Materials for Advanced Technology》 |2004年第2期|p.51-53|共3页
作者
S. Orimo; Y. Nakamori; A. Zuttel;
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作者单位

Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan;

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原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
Complex hydride; Hydrogen storage material; LiBH_4; Atomistic vibration; Differential scanning calorimetry;

机译：复合氢化物储氢材料LiBH_4原子振动差示扫描量热法;

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Material properties of MBH_4 (M = Li, Na, and K)

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