| Effect of VFe addition on hydrogen storage behavior of TiMn1.5-based alloys |
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| 引用本文： | XuebinYu ZhuWu BaojiaXia TaizhongHuang JinzhouChen NaixinXu. Effect of VFe addition on hydrogen storage behavior of TiMn1.5-based alloys[J]. 北京科技大学学报(英文版), 2004, 11(3): 263-267 |
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| 作者姓名： | XuebinYu ZhuWu BaojiaXia TaizhongHuang JinzhouChen NaixinXu |
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| 作者单位： | LabofEnergyScienceandTechnology,ShanghaiInstituteofMicrosystemandInformationTechnology,ChineseAcademyofSciences,Shanghai200050,China |
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| 摘 要： | The hydrogen absorption and desorption behavior of TiMn1.25Cr0.25 alloys with VFe substitution for partial Mn was investigated at 273, 293 and 313 K. It is found that VFe substitution increases their hydrogen storage capacity, decreases the plateau pressure and the hysteresis factor of their pressure-composition-temperature (PCT) curves. After annealing treatment at 1223 K for 6 h, TiMn0.95Cr0.25(VFe)0.3 alloy exhibits a lower hydrogen desorption plateau pressure (0.27 MPa at 313 K) and a smaller hysteresis factor (0.13 at 313 K); the maximum and effective hydrogen storage capacities (mass fraction) are 2.03% and 1.12% respectively, which can satisfy the demand of hydrogen storage tanks for proton exchange membrane fuel cells (PEMFC).
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| 关 键 词： | 磁滞现象 钛锰合金 储氢容量 倾斜因子 质子交换膜燃料电池 压力合成温度 退火处理 |
Effect of VFe addition on hydrogen storage behavior of TiMn1.5-based alloys |
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| Xuebin Yu,Zhu Wu,Baojia Xia,Taizhong Huang,Jinzhou Chen,Naixin Xu. Effect of VFe addition on hydrogen storage behavior of TiMn1.5-based alloys[J]. Journal of University of Science and Technology Beijing, 2004, 11(3): 263-267 |
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| Authors: | Xuebin Yu Zhu Wu Baojia Xia Taizhong Huang Jinzhou Chen Naixin Xu |
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| Abstract: | The hydrogen absorption and desorption behavior of TiMn1.25Cr0.25 alloys with Vfe substitution for partial Mn was investigated at 273, 293 and 313 K. It is found that Vfe substitution increases their hydrogen storage capacity, decreases the plateau pressure and the hysteresis factor of their pressure-composition-temperature (PCT) curves. After annealing treatment at 1223 K for 6 h,TiMn0.95Cr0.25(Vfe)0.3 alloy exhibits a lower hydrogen desorption plateau pressure (0.27 Mpa at 313 K) and a smaller hysteresis factor (0.13 at 313 K); the maximum and effective hydrogen storage capacities (mass fraction) are 2.03% and 1.12% respectively, which can satisfy the demand of hydrogen storage tanks for proton exchange membrane fuel cells (PEMFC). |
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| Keywords: | TiMn-based alloy hydrogen storage capacity hysteresis sloping factor PEMFC |
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