Complex Ammine Titanium(III) Borohydrides as Advanced Solid Hydrogen-Storage Materials with Favorable Dehydrogenation Properties
Complex Ammine Titanium(III) Borohydrides as Advanced Solid Hydrogen-Storage Materials with Favorable Dehydrogenation Properties
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复合氨络钛(III)硼氢化物作为先进固体储氢材料，具有良好的脱氢性能
DOI：
10.1021/cm301387d
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发表时间：
2012-08
期刊：
影响因子：
--
通讯作者：
Xuebin Yu
中科院分区：
文献类型：
--
作者：
Feng Yuan;Qinfen Gu;Xiaowei Chen;Yingbin Tan,;Yanhui Guo;Xuebin Yu
氨基金属硼氢化物（AMBs）具有高氢含量和良好的脱氢性能，作为储氢材料的潜力正受到广泛的研究。本文报道了通过金属氯化物（TiCl3·5NH3和TiCl3·3NH3）与硼氢化锂的复分解反应，成功合成了Ti(BH4)3·5NH3、Li2Ti(BH4)5·5NH3和Ti(BH4)3·3NH3三种氨基型硼氢化钛（ATBs）。与室温下不稳定的Ti(BH4)3相比，这些ATBs由于与NH3基团配位而表现出良好的稳定性。脱氢结果表明，理论上含有15.1 wt %氢的Ti(BH4)3·5NH3能够释放出~ 13.4 wt %的H2和少量的氨。这是通过单阶段分解过程发生的，当加热到200℃时，在130℃时脱氢峰。对于Li2Ti(BH4)5·5NH3，在105、120和215°C时，经过三步分解，纯氢析出率达到15.8%。
Ammine metal borohydrides (AMBs), with high hydrogen contents and favorable dehydrogenation properties, are receiving intensive research efforts for their potential as hydrogen storage materials. In this work, we report the successful synthesis of three ammine titanium borohydrides (denoted as ATBs), Ti(BH4)3·5NH3, Li2Ti(BH4)5·5NH3, and Ti(BH4)3·3NH3 via metathesis reaction of metal chloride ammoniates (TiCl3·5NH3 and TiCl3·3NH3) and lithium borohydride. These ATBs present favorable stability, owing to the coordination with NH3 groups, compared to the unstable Ti(BH4)3 at room temperature. Dehydrogenation results revealed that Ti(BH4)3·5NH3, which theoretically contains 15.1 wt % hydrogen, is able to release ∼13.4 wt % H2 plus a small amount of ammonia. This occurred via a single-stage decomposition process with a dehydrogenation peak at 130 °C upon heating to 200 °C. For Li2Ti(BH4)5·5NH3, a three-step decomposition process with a total of 15.8 wt % pure hydrogen evolution peaked at 105, 120, and 215 °C w...
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影响因子：
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作者：
Yanhui Guo;Q. Gu;Zaiping Guo;Jianfeng Mao;Huakun Liu;S. Dou;Xuebin Yu
通讯作者：
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影响因子：
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作者：
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DOI：
10.1002/asia.200900051
发表时间：
2009-06
期刊：
Chemistry, an Asian journal
影响因子：
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作者：
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通讯作者：
Simon R. Johnson;W. David;D. Royse;M. Sommariva;C. Tang;F. Fabbiani;M. Jones;P. Edwards
影响因子：
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