Akademik Veri Yönetim Sistemi
Inorganic Chemistry Communications, cilt.179, 2025 (SCI-Expanded)
In this study, the effects of the variable parameters of hexagonal boron nitride (hBN) ratio, hydroxyl functionalized multi-walled carbon nanotube (MWCNT-OH) ratio and sulfonation time on the characteristic properties of polysulfone (PSf) based proton exchange membranes were investigated and their optimizations were carried out. The experimental design, modeling of the results and optimization processes used the Response Surface Method (RSM). The fabrication and characterization of 17 membranes with different input parameters were carried out according to the experimental design suggested by RSM. Proton conductivity (PC), water uptake capacity (WUC), swelling ratio (SR), Fenton's weight loss, tensile strength, Young's modulus and elongation at break parameters were used as response parameters. The fact that R2 values were greater than 0.95 in the created model and the Adjusted R2 and Predicted R2 results were in high agreement proved the high accuracy and repeatability of the model. It was observed that the PC, SR, chemical and thermal stability properties of the membrane were improved by adding hBN and MWCNT-OH nanoparticles. Improvements were observed in the PC and WUC response parameters of the SPSf membrane with the increase of sulfonation time. The optimum values of the variable parameters were determined as 2.5 % hBN ratio, 2.75 % MWCNT-OH ratio and 4.2 h sulfonation time. The response parameters of the optimum membrane produced depending on these values were determined as PC 20.15 mS.cm−1, WUC 38.68 %, SR 13.73 %, Fenton's weight loss 21.38 %, tensile strength 21.38 MPa, Young's modulus 1016.7 MPa and elongation at break 3.77 %. By comparing the obtained results with the literature, it was concluded that the developed optimum membrane promises high performance for proton exchange fuel cells.