Mohamed A. Ben Ali, Mohamed A. Ben Moussa, Souhib Umer Ilyas, Rizwan Nasir, Dorra Ghorbel, Sherif M. A. S. Keshk
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引用次数: 0
摘要
具有高质子导电性的替代质子交换膜（PEMs）必须以合理的成本制造才能成为商业使用的质子交换膜燃料电池（pemfc）。因此，采用磺化聚醚醚酮（SPEEK）与不同数量的部分氧化聚乙烯醇（OPVA）以5 wt%、10 wt%和20 wt%的比例共混的复合膜被开发用于PEMs。在室温下，含有5%、10%和20% OPVA的SPEEK膜的吸水率分别为45%、75%和109%。相应地，含有5%、10%和20% OPVA的SPEEK在110°C时的质子电导率分别为22、48和80 mS cm−1。与SPEEK相比，OPVA/SPEEK具有更高的强度、刚度和热稳定性。表征结果表明，OPVA和SPEEK之间形成的强氢键网络为质子转移提供了更多的跳跃位点。该研究证实了OPVA/SPEEK膜作为质子交换膜是有效的。图形抽象
Enhanced proton conductivity of sulfonated poly(ether ether ketone) incorporating oxidized polyvinyl alcohol for high-performance proton exchange membranes
Alternative proton exchange membranes (PEMs) with high proton conductivity must be fabricated at reasonable costs to qualify as commercially used proton-exchange membrane fuel cells (PEMFCs). As a result, composite membranes containing sulfonated poly(ether ether ketone) (SPEEK) blended with various quantities of partially oxidized polyvinyl alcohol (OPVA) at 5 wt%, 10 wt%, and 20 wt% were developed for PEMs. At room temperature, the water uptake capacities of the SPEEK membranes containing 5, 10, and 20 wt% OPVA were 45%, 75%, and 109%, respectively. Correspondingly, the proton conductivities of SPEEK containing 5, 10, and 20 wt% OPVA were 22, 48, and 80 mS cm−1 at 110 °C, respectively. Compared with prestine SPEEK, OPVA/SPEEK have greater strength, stiffness, and thermal stability. The characterization results indicated that the strong hydrogen bond network that evolved between OPVA and SPEEK provided more jump sites for proton transfer. This study confirmed that OPVA/SPEEK membranes are effective as proton exchange membranes.
期刊介绍：
Energy is the single most valuable resource for human activity and the basis for all human progress. Materials play a key role in enabling technologies that can offer promising solutions to achieve renewable and sustainable energy pathways for the future.
Materials for Renewable and Sustainable Energy has been established to be the world''s foremost interdisciplinary forum for publication of research on all aspects of the study of materials for the deployment of renewable and sustainable energy technologies. The journal covers experimental and theoretical aspects of materials and prototype devices for sustainable energy conversion, storage, and saving, together with materials needed for renewable fuel production. It publishes reviews, original research articles, rapid communications, and perspectives. All manuscripts are peer-reviewed for scientific quality.
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1. MATERIALS for renewable energy storage and conversion: Batteries, Supercapacitors, Fuel cells, Hydrogen storage, and Photovoltaics and solar cells.
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