| 刘云鹤,侯建明.锌阳离子取代对硼氢化锂放氢热力学性能的影响[J].南华大学学报(自然科学版),2020,34(1):75~80.[LIU Yunhe,HOU Jianming.The Effect of Zn Anion Substitution on Dehydrogenation Properties of LiBH4[J].Journal of University of South China(Science and Technology),2020,34(1):75~80.] |
| 锌阳离子取代对硼氢化锂放氢热力学性能的影响 |
| The Effect of Zn Anion Substitution on Dehydrogenation Properties of LiBH4 |
| 投稿时间：2019-09-10 |
| DOI： |
| 中文关键词: 氢能 放氢 锌阳离子取代 硼氢化合物 |
| 英文关键词:hydrogen energy dehydrogenation Zn anion substitution borohydride |
| 基金项目:广东省安全生产科技协同创新中心项目(2018B020207010) |
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| 中文摘要: |
| 氢能的高效安全利用是目前的研究热点之一。针对轻质高容量储氢材料硼氢化合物的安全放氢,探索了一种金属阳离子替代的调控策略,通过对分子结构的调整,实现对[BH4]－基团热力学稳定性的有效调控,达到可控安全放氢的目的。实验以LiBH4为例,采用湿化学法制备Zn(BH4)2和LiZn(BH4)3,并通过工艺优化,阐明了Zn阳离子对硼氢化物的室温热力学稳定性以及热分解行为的影响,为硼氢化合物的进一步安全开发和利用提供了思路。 |
| 英文摘要: |
| The high safety and efficiency for the spreading usage of borohydrides as solid-state hydrogen storage material are the important research aspect.Aiming at the safe hydrogen release of light and high-capacity hydrogen storage material borohydride,a regulation strategy of metal cation substitution was explored,and the effect of cation substitution on tuning the thermodynamics of [BH4]－ unit was investigated.LiBH4 was chosen as an modified example to synthesize Zn(BH4)2 and LiZn(BH4)3 via wet-chemical approach with optimized procedure.The effectiveness of cation substitution was testified to altering the dehydrogenation process with controlling safety,and it certainly offered a way for the safe application of borohydrides. |
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