Effects of Co introduction on hydrogen storage properties of Ti–Fe–Mn alloys
| Autor: | Tiesheng Huang, Junlin Du, Zhilin Li, Haiqin Qu, Chaohui Pu, Zhu Wu, Yongqiang Niu, Lou Yuwan |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Hydrogen Renewable Energy Sustainability and the Environment Metallurgy Cell volume Analytical chemistry Energy Engineering and Power Technology chemistry.chemical_element Condensed Matter Physics Plateau (mathematics) Hydrogen storage Fuel Technology chemistry Phase (matter) Dehydrogenation Particle size Magnetic levitation |
| Zdroj: | International Journal of Hydrogen Energy. 40:2729-2735 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2014.12.089 |
| Popis: | TiFe0.86Mn0.1−xCox (x = 0, 0.04, 0.05, 0.06) alloys were prepared by RF magnetic levitation melting. These alloys are determined as a single CsCl type phase. As x increases from 0 to 0.06, the unit cell volume decreases while the maximum hydrogen capacity rises to a threshold and starts to reduce thereafter. The particle size test shows that the pulverization resistance of the alloys improves significantly with the introduction of Co. After that, the effects of further increasing of Co content in this series of alloys were investigated. It is found that the appropriate proportion of Mn and Co leads to a fairly flat β phase dehydrogenation plateau. In addition, all the alloys could be easily activated. Among these alloys, TiFe0.86Mn0.05Co0.05 exhibits the highest hydrogen storage capacity of 1.98 wt.% at the temperature of 273 K, while TiFe0.86Mn0.04Co0.1 presents the best plateau property. |
| Databáze: | OpenAIRE |
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