| 自蔓延高温合成钒基固溶体贮氢合金的理论研究 |
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| 引用本文： | 李荣,叶芳.自蔓延高温合成钒基固溶体贮氢合金的理论研究[J].河南师范大学学报(自然科学版),2007,35(1):125-128. |
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| 作者姓名： | 李荣 叶芳 |
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| 作者单位： | 重庆师范大学,化学学院,重庆,400047 |
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| 基金项目： | 重庆市教委资助项目
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重庆师范大学重点项目 |
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| 摘 要： | 提出采用自蔓延高温合成法制备钒基固溶体贮氢合金的新工艺.计算知NH4VO3-TiO2-Cr2O3-Ni-Al反应体系的绝热温度(Tad)为1 889.27 K,单位质量反应热为-2.67 kJ/g;对NH4VO3-TiO2-Cr2O3-Ni-Al反应体系的相关反应进行了热力学分析,表明体系生成V+Ti+Cr+Al2O3的趋势最大,生成物最稳定.确定了采用自蔓延模式的可行性.
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| 关 键 词： | 自蔓延高温合成 绝热温度 单位质量反应热 热力学分析 |
| 文章编号： | 1000-2367(2007)01-0125-04 |
| 修稿时间： | 2006年4月16日 |
Theoretical Research of V-based Solid Solution Storage Hydrogen Alloys by self Propagating High Temperature Synthesis |
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| LI Rong,YE Fang.Theoretical Research of V-based Solid Solution Storage Hydrogen Alloys by self Propagating High Temperature Synthesis[J].Journal of Henan Normal University(Natural Science),2007,35(1):125-128. |
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| Authors: | LI Rong YE Fang |
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| Abstract: | A new technique named self propagating high temperature synthesis was proposed to prepare V-based solid solution storage hydrogen alloys.The adiabatic temperature(Tad) and reaction heat per unit mass in NH4VO3-TiO2-Cr2O3-Ni-Al reaction system was calculated to be 1 889.27 K and2.67 kJ/g,through which the thermodynamic data of correlative reactions were analyzed.It produces V Ti Cr Al2O3 more easily and determines the feasibility of the self propagating high temperature synthesis reaction consequently. |
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| Keywords: | self propagating high temperature synthesis adiabatic temperature reaction heat per unit mass thermodynamics analysis |
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