V. Mazinani, S. H. Tabaian, M. Rezaei, M. Mallahi, M. Mohammadijoo, H. Omidvar
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引用次数: 3
摘要
制备了Nafion-CaO、Nafion-ZrOH和Nafion-CaO- zroh膜，以改善直接甲醇燃料电池中的质子导电性、热稳定性和机械性能，并减少甲醇交叉。采用离子交换法将Ca和Zr掺入到Nafion膜中。利用吸收透射反射率(ATR)和能量色散x射线能谱(EDS)技术对制备的膜进行了表征。所有制备膜的甲醇交叉显著降低。与Nafion膜相比，Nafion- cao膜和Nafion- cao - zroh膜的质子电导率分别提高了10倍和6倍(0.08 cm - 1)，而Nafion- zroh膜的质子电导率则降低。Nafion膜的弹性模量从48 MPa增加到60、78和90 MPa，分别为Nafion- cao、Nafion- zroh和Nafion- cao - zroh膜。此外，制备膜的热稳定性(360°C)提高到407、457和470°C。
Synthesis and Characterization of Nafion-ZrOH-CaO Hybrid Membrane for Proton Exchange Membrane Fuel Cell
Nafion-CaO, Nafion-ZrOH, and Nafion-CaO-ZrOH membranes are fabricated in order to improve proton conductivity, thermal stability, and mechanical properties as well as decrease methanol crossover in direct methanol fuel cells. The ion exchange method is utilized to incorporate Ca and Zr into Nafion membranes. Prepared membranes are characterized by using absorption transmission reflectance (ATR) and energy dispersive X-ray spectroscopy (EDS) techniques. Methanol crossover decreases significantly for all fabricated membranes. Nafion-CaO and Nafion-CaO-ZrOH membranes exhibit a 10 and 6 time increase in proton conductivity compared to Nafion (0.08 Scm–1), while the proton conductivity of Nafion-ZrOH decreases. The elastic modulus enhance from 48 MPa for Nafion to 60, 78, and 90 MPa for Nafion-CaO, Nafion-ZrOH, and Nafion-CaO-ZrOH membranes. In addition, the thermal stability of Nafion (360 °C) increases to 407, 457, and 470 °C for fabricated membranes.
期刊介绍：
The Journal of Fuel Cell Science and Technology publishes peer-reviewed archival scholarly articles, Research Papers, Technical Briefs, and feature articles on all aspects of the science, engineering, and manufacturing of fuel cells of all types. Specific areas of importance include, but are not limited to: development of constituent materials, joining, bonding, connecting, interface/interphase regions, and seals, cell design, processing and manufacturing, multi-scale modeling, combined and coupled behavior, aging, durability and damage tolerance, reliability, availability, stack design, processing and manufacturing, system design and manufacturing, power electronics, optimization and control, fuel cell applications, and fuels and infrastructure.
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