Synthesis and decomposition of Li3Na(NH2)(4) and investigations of Li-Na-N-H based systems for hydrogen storage
文献类型：期刊论文
| 作者 | Jepsen, Lars H.2,3; Wang, Peikun4; Wu, Guotao4; Xiong, Zhitao4; Besenbacher, Flemming1,5; Chen, Ping4; Jensen, Torben R.2,3 |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2016-01-21 |
| 卷号 | 18期号:3页码:1735-1742 |
| ISSN号 | 1463-9076 |
| DOI | 10.1039/c5cp06719g |
| 文献子类 | Article |
| 英文摘要 | Previous studies have shown modified thermodynamics of amide-hydride composites by cation substitution, while this work systematically investigates lithium-sodium-amide, Li-Na-N-H, based systems. Li3Na(NH2)(4) has been synthesized by combined ball milling and annealing of 3LiNH(2)-NaNH2 with LiNa2(NH2)(3) as a minor by-product. Li3+xNa1-x(NH2)(4) releases NaNH2 and forms non-stoichiometric Li3+xNa1-x(NH2)(4) before it melts at 234 degrees C, as observed by in situ powder X-ray diffraction. Above 234 degrees C, Li3+xNa1-x(NH2)(4) releases a mixture of NH3, N-2 and H-2 while a bi-metallic lithium sodium imide is not observed during decomposition. Hydrogen storage performances have been investigated for the composites Li3Na(NH2)(4)-4LiH, LiNH2-NaH and NaNH2-LiH. Li3Na(NH2)(4)-4LiH converts into 4LiNH(2)-NaH-3LiH during mechanochemical treatment and releases 4.2 wt% of H-2 in multiple steps between 25 and 340 degrees C as revealed by Sievert's measurements. All three investigated composites have a lower peak temperature for H-2 release as compared to LiNH2-LiH, possibly owing to modified kinetics and thermodynamics, due to the formation of Li3Na(NH2)(4) and LiNa2(NH2)(3). |
| WOS关键词 | LITHIUM AMIDE ; SODIUM AMIDE ; TRANSFORMATIONS ; DIFFRACTION ; COMPOSITES ; COMPOUND ; HYDRIDES ; COMPLEX ; IMIDES ; NANH2 |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000369482100043 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/171402]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Chen, Ping; Jensen, Torben R. |
| 作者单位 | 1.Aarhus Univ, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark 2.Aarhus Univ, Ctr Mat Crystallog, Interdisciplinary Nanosci Ctr, Langelandsgade 140, DK-8000 Aarhus C, Denmark 3.Aarhus Univ, Dept Chem, Langelandsgade 140, DK-8000 Aarhus C, Denmark 4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 5.Aarhus Univ, Interdisciplinary Nanosci Ctr iNANO, Ny Munkegade 120, DK-8000 Aarhus C, Denmark |
| 推荐引用方式 GB/T 7714 | Jepsen, Lars H.,Wang, Peikun,Wu, Guotao,et al. Synthesis and decomposition of Li3Na(NH2)(4) and investigations of Li-Na-N-H based systems for hydrogen storage[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2016,18(3):1735-1742. |
| APA | Jepsen, Lars H..,Wang, Peikun.,Wu, Guotao.,Xiong, Zhitao.,Besenbacher, Flemming.,...&Jensen, Torben R..(2016).Synthesis and decomposition of Li3Na(NH2)(4) and investigations of Li-Na-N-H based systems for hydrogen storage.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,18(3),1735-1742. |
| MLA | Jepsen, Lars H.,et al."Synthesis and decomposition of Li3Na(NH2)(4) and investigations of Li-Na-N-H based systems for hydrogen storage".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 18.3(2016):1735-1742. |
入库方式： OAI收割
来源：大连化学物理研究所
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