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Effect of Mn, Ti/Cr ratio, and heat treatment on hydrogen storage properties of TI-V-CR-MN alloys

机译:Mn,Ti / Cr比和热处理对TI-V-CR-MN合金储氢性能的影响

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This study elucidates the effects of adding Mn, the Ti/Cr ratio, and high-temperature annealing on the hydrogen absorption-desorption properties of Ti-V-Cr-Mn body-centered cubic alloys. The hydrogen storage properties of alloys are also modified by integrating the positive effects. X-ray diffraction analysis indicates that the lattice parameters decrease linearly with an increasing Mn content. Additionally, the reversible hydrogen desorption capacity is increased as the Mn content is increased from 0 at.% to 15 at.%, without apparently degrading hydrogen absorption capacities. Despite increasing the desorption pressure, the decrease of Ti/Cr ratio slightly reduces the absorption and desorption capacities. The Ti33V33Cr19Mn15 alloy has a reversible hydrogen desorption capacity as high as 2.48 mass% at 80°C. Moreover, the as-heat-treated (1200°C, 10 h) Ti31V33Cr21Mn15 alloy has a flatter plateau pressure and a higher amount of desorption pressure (greater than 1 atm) than those of the as-cast alloy.View full textDownload full textKeywordshydrogen storage materials, metal hydrides, bcc alloyRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/02533839.2011.577595
机译:这项研究阐明了添加Mn,Ti / Cr比和高温退火对Ti-V-Cr-Mn体心立方合金的氢吸收-解吸性能的影响。合金的储氢性能也可以通过综合积极作用而得到改善。 X射线衍射分析表明,晶格参数随Mn含量的增加而线性降低。此外,可逆的氢气解吸能力随着Mn含量从0%到15%的增加而增加,而不会明显降低氢气的吸收能力。尽管增加了解吸压力,但Ti / Cr比的降低会稍微降低吸收和解吸能力。 Ti 33 V 33 Cr 19 Mn 15 合金具有高达2.48€的可逆氢解吸能力。在80°C时质量百分比。此外,热处理后的(1200°C,10h)Ti 31 V 33 Cr 21 Mn 15 合金具有比铸态合金更平坦的平台压力和更高的解吸压力(大于1atm)。查看全文下载全文关键词氢存储材料,金属氢化物,密件抄送合金相关变量var addthis_config = {ui_cobrand:“ Taylor&Francis Online”,servicescompact:“ citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,更多”,发布:“ ra-4dff56cd6bb1830b”};添加到候选列表链接永久链接http://dx.doi.org/10.1080/02533839.2011.577595

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