| 过氧化氢对质子交换膜热分解机理的影响 |
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| 引用本文： | 鲁伊恒,徐国财,吕玉卫. 过氧化氢对质子交换膜热分解机理的影响[J]. 高分子材料科学与工程, 2011, 0(3): 39-42 |
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| 作者姓名： | 鲁伊恒 徐国财 吕玉卫 |
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| 作者单位： | 安徽理工大学化工学院;法国巴黎南大学物理化学实验室 |
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| 基金项目： | 安徽省国际科技合作计划资助项目(06088018);淮南市科技计划资助项目 |
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| 摘 要： | 采用非等温热重-微分热重(TG-DTG)技术研究了燃料电池质子交换膜在过氧化氢氧化后的热分解机理,并用Achar和Coats-Redfem方法对非等温动力学数据进行了分析,得到了其热分解的反应机理函数和动力学参数.计算结果显示,第一阶段热分解过程受(D3)三维扩散机理控制,表现活化能为172.6 kJ/mol,指前因子...
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| 关 键 词： | 燃料电池 质子交换膜 过氧化氢 热分解机理 |
Effect of H2O2 on the Thermal Decomposition Mechanism of Proton-Exchange Membrane |
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| Yiheng Lu,Guocai Xu,Yuwei Lv. Effect of H2O2 on the Thermal Decomposition Mechanism of Proton-Exchange Membrane[J]. Polymer Materials Science & Engineering, 2011, 0(3): 39-42 |
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| Authors: | Yiheng Lu Guocai Xu Yuwei Lv |
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| Affiliation: | 1.College of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001,China;2.Laboratoire de Chimie Physique,Universite de Paris Sud,Orsay Cedex 91405,France) |
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| Abstract: | The thermal decomposition mechanism of proton-exchange membrane was investigated by utilizing non-isothermal thermogravimetric-digital thermogravimetry(TG-DTG) analysis,as it was oxidized by H2O2.The non-isothermal kinetic data were analyzed by using the Achar method and Coats-Redfem method.The mechanism function and kinetic parameters of the thermal decomposition were obtained.The calculation results show that the three-dimensional diffusion(D3) mechanism controls the thermal decomposition process in first stage.The apparent activation energy and the pre-exponential factor is 172.6 kJ/mol and 2.49×1011min-1 respectively.The third-order reaction(F3) mechanism controls the thermal decomposition process in second stage.The apparent activation energy and the pre-exponential factor is 248.0 kJ/mol and 6.79×1017 min-1 respectively. |
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| Keywords: | fuel cell proton-exchange membrane H2O2 thermal decomposition mechanism |
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