| 초록 |
We develop a new ceramic-based reinforcing porous substrate, which consists of hygroscopic silica (SiO2) nanoparticles interconnected by silicate binders and athermoresistant nonwoven support. This unusual ceramic substrate is featured with the strong mechanical strength, well-developed nanoporous structure, high hydrophilicity, and more notably, good water retention capability. The nanostructured pores of the ceramic substrate are subsequently impregnated with sulfonated poly(arylene ether sulfone) (SPAES). In comparison to a pristine SPAES membrane, the ceramic substrate-reinforced SPAES composite membrane offers the significantly improved dimensional change and also effectively mitigates the steep decline of proton conductivity at low humidity conditions. |
