Probing the Efficiency of PPMG-Based Composite Electrolytes for Applications of Proton Exchange Membrane Fuel Cell  

作　　者：Shakeel Ahmed Faizah Altaf Safyan Akram Khan Sumaira Manzoor Aziz Ahmad Muhammad Mansha Shahid Ali Ata-ur-Rehman Karl Jacob 

机构地区：[1]School of Material Science and Engineering,Henan International Joint Laboratory of Nano-Photoelectric Magnetic Materials,Henan University of Technology,Zhengzhou 450001,China [2]Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management,King Fahd University of Petroleum and Minerals,31261 Dhahran,Saudi Arabia [3]School of Materials Science and Engineering,Georgia Institute of Technology,Atlanta,GA 30332,USA

出　　处：《Transactions of Tianjin University》2024年第3期262-283,共22页天津大学学报（英文版）

摘　　要：PPMG-based composite electrolytes were fabricated via the solution method using the polyvinyl alcohol and polyvinylpyrrolidone blend reinforced with various contents of sulfonated inorganic filler.Sulfuric acid was employed as the sulfonating agent to functionalize the external surface of the inorganic filler,i.e.,graphene oxide.The proton conductivities of the newly prepared proton exchange membranes(PEMs)were increased by increasing the temperature and content of sulfonated graphene oxide(SGO),i.e.,ranging from 0.025 S/cm to 0.060 S/cm.The induction of the optimum level of SGO is determined to be an excellent route to enhance ionic conductivity.The single-cell performance test was conducted by sandwiching the newly prepared PEMs between an anode(0.2 mg/cm^(2) Pt/Ru)and a cathode(0.2 mg/cm^(2) Pt)to prepare membrane electrode assemblies,followed by hot pressing under a pressure of approximately 100 kg/cm^(2) at 60℃for 5–10 min.The highest power densities achieved with PPMG PEMs were 14.9 and 35.60 mW/cm^(2) at 25℃and 70℃,respectively,at ambient pressure with 100%relative humidity.Results showed that the newly prepared PEMs exhibit good electrochemical performance.The results indicated that the prepared composite membrane with 6 wt%filler can be used as an alternative membrane for applications of high-performance proton exchange membrane fuel cell.

关 键 词：Proton exchange membrane fuel cell Sulfonated graphene oxide POLYVINYLPYRROLIDONE Solution casting Membrane electrode assembly Fuel cell performance 

分 类 号：O646[理学—物理化学] TM911.4[理学—化学]