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题名: Influence of Transition Metal Additives on the Hydriding/Dehydriding Critical Point of NaAlH4
作者: Huang, C. K.1;  Zhao, Y. J.1, 2;  Sun, T.1;  Guo, J.3;  Sun, L. X.4;  Zhu, M.1
通讯作者: M. Zhu
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2009-06-04
DOI: 10.1021/jp808775v
卷: 113, 期:22, 页:9936-9943
收录类别: SCI
文章类型: Article
部门归属: 15
项目归属: 1504
产权排名: 4;5
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: The influence of transition metals (TMs) on the hydriding/dedydriding critical point of NaAlH4 has been studied using the chemical potential method. The theoretical results predict that, if the reaction system reaches equilibrium, most of the TM additives significantly increase its hydriding/dedydriding critical point in the sequence Pd > Co > Zr > Ni > Nb > Hf > Ti > Mn > Fe > V > Cu > Cr and therefore have destabilizing effects on NaAlH4 in the same sequence. Experimentally, the isothermal dehydriding kinetics of NaAlH4 is studied only with Fe, Ti, and FeTi additives. The experimental results show that the destabilizing effect of Fe and Ti additives with coarse particles is very low while more effective destabilizing ability is achieved with fine FeTi particles. These experimental results suggest that the predicted destabilizing effect of TM additive is hindered kinetically due to the coarse particles of additives, and therefore experimental verification of the destabilizing effect of TMs should be performed with nanosized particles.
关键词[WOS]: HYDROGEN STORAGE PROPERTIES ;  X-RAY-DIFFRACTION ;  DEHYDROGENATION PROPERTIES ;  COMPLEX HYDRIDES ;  SODIUM ALANATE ;  ELECTRON-GAS ;  DOPED NAALH4 ;  TI ;  DECOMPOSITION ;  TITANIUM
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000266447600073
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/101847
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.S China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
2.S China Univ Technol, Dept Phys, Guangzhou 510640, Guangdong, Peoples R China
3.Guangxi Univ, Coll Phys Sci & Technol, Nanning 530004, Peoples R China
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Huang, C. K.,Zhao, Y. J.,Sun, T.,et al. Influence of Transition Metal Additives on the Hydriding/Dehydriding Critical Point of NaAlH4[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(22):9936-9943.
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