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Vijayakumar, Vijayalekshmi,Nam, Sang Yong Elsevier 2019 Journal of industrial and engineering chemistry Vol.70 No.-
<P><B>Abstract</B></P> <P>Anion exchange membranes (AEMs) play prominent role in addressing alkaline fuel cell efficiency and cost. Great deal of efforts has been made in the past, particularly during the last couple of years to reach AEMs with high hydroxide conductivity, good chemical/thermal/mechanical stability, fuel cross-over resistance and low cost. The purpose of this review is to summarize and discuss the progress on the development of different AEMs for alkaline fuel cells over the last three years. The alternative AEMs based on the modified synthetic and sustainable polymers, organic/inorganic hybrid materials and additives are reviewed in the context of AEM materials.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Recent Advances in Composite Polymer Electrolyte Membranes for Fuel Cell
Vijayalekshmi Vijayakumar,손태양,남상용 한국공업화학회 2019 공업화학 Vol.30 No.1
Composite polymer electrolyte membranes based on porous supports have been recognized as an alternative for fuel cell applications since it can provide both mechanical as well as electrochemical stabilities. This mini-review highlights recent advances in supported composite polymer electrolyte membranes using porous matrix and nanofibrous supports. In addition, a comprehensive table listing a wide range of anion and proton exchange pore filling membranes was provided at the end of the review.
( Vijayalekshmi Vijayakumar ),남상용 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0
A series of novel alkaline anion exchange membranes were prepared by incorporating quaternary ammonium functionalized polyhedral oligomeric silsequioxane (QPOSS) into quaternized poly (2,6-dimethyl-1,4-phenylene oxide) (QPPO). The structure of QPOSS was confirmed by structural analysis. The QPOSS nano particles impart additional ion conducting sites and reinforcing the membrane in molecular level. The membranes showed good mechanical and thermal stabilities. Moreover, the membranes were tested for water uptake, ion exchange capacity (IEC) and hydroxyl conductivity with respect to alkaline fuel cell application. The experimental results confirm that the addition of QPOSS has the propensity to improve the performance of the anion exchange membrane significantly.