| Hydrogen absorption/desorption properties of MmNi(4.5)Cr(0.5-x)Zr(x) alloys | |
| S. L. Li; W. Chen; D. M. Chen; K. Yang | |
| 2009 | |
| Source Publication | Journal of Alloys and Compounds
 |
| ISSN | 0925-8388 |
| Volume | 471Issue:1-2Pages:78-82 |
| Abstract | Hydrogen absorption/desorption properties of MmNi(4.5)Cr(0.5-x)Zr(x) alloys ( x = 0, 0.05, 0.1) were investigated in the present work. The Pressure-Composition ( PC) isotherms and absorption kinetics were measured in the temperature range of 273 <= T <= 303 K by the volumetric method. XRD patterns showed that the as-annealed MmNi(4.5)Cr(0.5-x)Zr(x) alloys had CaCu(5) type hexagonal structure and could keep the same single phase after 16 cycles of absorption/desorption. It was found that with the increase of x in MmNi(4.5)Cr(0.5-x)Zr(x) alloys, the dissociation plateau pressure increased, the hysteresis was diminished, the hydrogen uptake capacity was reduced and the absorption kinetics was improved. The absorption plateau pressure increased when x was increased to 0.05, but decreased when x increased to 0.1. It was also found that the dissociation plateau pressure increased linearly with increasing cell volume V and the lattice parameter a, and the hydrogen uptake capacity decreased linearly with increasing Zr content. (c) 2008 Elsevier B.V. All rights reserved. |
| description.department | [li, s. l.; chen, w.; chen, d. m.; yang, k.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [li, s. l.; chen, w.] chinese acad sci, grad sch, beijing 100049, peoples r china.;chen, dm (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;demin.chen.1@imr.ac.cn |
| Keyword | Metal Hydride Hydrogen Absorbing Materials Gas-solid Reactions Thermodynamic Properties Absorption-desorption Characteristics Storage Properties Intermetallic Compounds Hydriding Properties Mischmetal System Ni Improvement Aluminum Mmni5 |
| URL | 查看原文 |
| WOS ID | WOS:000265086300031 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/32032 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | S. L. Li,W. Chen,D. M. Chen,et al. Hydrogen absorption/desorption properties of MmNi(4.5)Cr(0.5-x)Zr(x) alloys[J]. Journal of Alloys and Compounds,2009,471(1-2):78-82. |
| APA | S. L. Li,W. Chen,D. M. Chen,&K. Yang.(2009).Hydrogen absorption/desorption properties of MmNi(4.5)Cr(0.5-x)Zr(x) alloys.Journal of Alloys and Compounds,471(1-2),78-82. |
| MLA | S. L. Li,et al."Hydrogen absorption/desorption properties of MmNi(4.5)Cr(0.5-x)Zr(x) alloys".Journal of Alloys and Compounds 471.1-2(2009):78-82. |
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