Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector
Viscoelastic polyacrylate with hierarchical hollow zeolite for sound insulation
The scheme of proton transport mechanism in the SPEEK/HPW@MIL composite membrane.AbstractIncorporating phosphotungstic acid (HPW) in proton exchange membranes (PEMs) is an effective way to improve proton conductivity, but its leakage remains a problem. It can be solved by immobilizing acid in membranes to enhance the stability of PEMs. Herein, we proposed a novel sulfonated poly(ether ether ketone) (SPEEK) composite membrane (SPEEK/HPW@MIL) that was prepared by blending amino?modified MIL?101(Cr) to anchor HPW. In this work, HPW was anchored through hydrogen bond to minimize its leakage and enhance the overall compatibility. The incorporation of MIL?101(Cr)?NH2 also helped lower the swelling ratio and improve the dimensional stability. Compared with pristine SPEEK and SPEEK/MIL membrane, the proton conductivity of the SPEEK/HPW@MIL composite membrane increased by 26% and 14%, respectively. The superior performance recommended a promising conception for anchoring HPW in PEMs.
» Publication Date: 26/04/2023
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737
