Enhancing proton conduction of high temperature proton exchange membranes based on carbon dots doped polyvinyl chloride nanofibers

Recent advances in non-perfluorinated sulfonic acid proton exchange membranes in the energy field

“…7,16 With the continuous development of interdisciplinary research in nanotechnology and polymer materials, the structure and performance of NPFSA-PEM have further been optimized and improved. 17 New types of NPFSA-PEM have been prepared by enhancing proton conductivity and mechanical stability through methods such as group grafting, 18,19 nanomaterial composites and doping, 20–22 structure design, 23,24 and cross-linking optimization. 25 NPFSA-PEM doped with conductive polymers, nanofillers, and other special materials often exhibit improved proton conductivity but reduced mechanical strength and other properties of the membrane material.…”

Semi-Interpenetrating High-Temperature Proton Exchange Membranes Based on Cross-Linked Poly(fluorenyl-terphenyl-piperidinium) and Poly(vinylbenzyl chloride-co-vinylbenzyl chloride) for Fuel Cells

“…PEMFCs have attracted intense research interest for their advantages such as fast start-up, high energy conversion, and clean energy production. , Perfluorosulfonic acid (PFSA) membranes are commonly used as proton exchange membranes (PEMs) for PEMFCs. − However, the conductivity of PFSA-based membranes is heavily dependent on water, and the water evaporates when the operating temperature is over 80 °C, leading to cell performance deterioration. In addition, CO at the parts per million level results in platinum catalyst poisoning; therefore, extremely high-purity H 2 is required for PEMFCs, which greatly increases the cost of PEMFC use.…”