Composite membranes comprising sulfonated poly (ether ether ketone) (SPEEK) blended with varying proportions of sulfoethyl cellulose (SEC) at 5 wt% and 10 wt% were fabricated for fuel cell application. The structural, morphological, and thermal properties of these membranes were investigated using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. The composite membranes exhibited enhanced thermal stability and increased water absorption compared to the pristine SPEEK. Moreover, the proton conductivity of the composite membranes surpassed that of pure SPEEK, reaching up to 110 mS/cm at temperatures exceeding 100 °C…Read more
About Author
Pr. Sherif M.A.S. Keshk
Sherif Keshk is a Professor and Senior expert at University of Tunis El Manar, Higher Institute of Applied Biological Sciences of Tunisia (ISSBAT). Actually, Kesh is a Senior Expert at Become. He got his M.Sc. from Chemistry department, Alexandria University, (EGYPT) and his PhD from Graduate School of Engineering, Tokyo Metropolitan University, (JAPAN). Pr. Keshk has more than 100 scientific publications. Keshk received three international awards, TOP 2% of the world’s scholars 2020-2022 (Stanford University); BEST PROJECT for 2015, King Abdel Aziz City for Science and Technology and BEST RESEARCHER for 2009, Ain Shams University, EGYPT…Read more