Response of a direct methanol fuel cell to fuel change
Response of a direct methanol fuel cell to fuel change
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DOI：
10.1016/j.ijhydene.2010.02.115
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发表时间：
2010-10
影响因子：
7.2
通讯作者：
T. Leo;M. A. Raso;E. Navarro;E. D. S. L. Blanca;M. Villanueva;B. Moreno
中科院分区：
文献类型：
--
作者：
T. Leo;M. A. Raso;E. Navarro;E. D. S. L. Blanca;M. Villanueva;B. Moreno
甲醇和乙醇作为液体燃料，特别是作为未来的替代“能源载体”，最近受到了广泛关注。从这个意义上说，找到一种能够以明显的方式交换燃料而不损失性能的直接醇燃料电池将在便携式应用领域中代表明显的优势。在这项工作中，在内部的直接甲醇燃料电池（DMFC）的燃料从甲醇到乙醇的变化和它的行为在不同的环境温度值的响应进行了研究。已进行了适合于制造双极板的材料的腐蚀研究，并且已证明316-或2205-双相不锈钢适合用于直接醇燃料电池。极化曲线已被测量在不同的环境温度值，控制的实验装置设计用于此目的。已将数据拟合到考虑温度效应的模型中。对于这两种燃料，甲醇和乙醇，可调参数与温度的线性关系。燃料电池性能比较的开路电压，动力学和电阻。
Methanol and ethanol have recently received much attention as liquid fuels particularly as alternative ‘energy-vectors’ for the future. In this sense, to find a direct alcohol fuel cell that able to interchange the fuel without losing performances in an appreciable way would represent an evident advantage in the field of portable applications. In this work, the response of a in-house direct methanol fuel cell (DMFC) to the change of fuel from methanol to ethanol and its behaviour at different ambient temperature values have been investigated. A corrosion study on materials suitable to fabricate the bipolar plates has been carried out and either 316- or 2205-duplex stainless steels have proved to be adequate for using in direct alcohol fuel cells. Polarization curves have been measured at different ambient temperature values, controlled by an experimental setup devised for this purpose. Data have been fitted to a model taking into account the temperature effect. For both fuels, methanol and ethanol, a linear dependence of adjustable parameters with temperature is obtained. Fuel cell performance comparison in terms of open circuit voltage, kinetic and resistance is established.