High-temperature proton exchange membranes from microporous polyacrylamide caged phosphoric acid
作者： Qunwei Tang , Shuangshuang Yuan , Hongyuan Cai
DOI: 10.1039/C2TA00116K
关键词:
摘要: To enhance the H3PO4 loading and therefore proton conductivity, freeze-dried microporous polyacrylamide (PAM) was doped with a highly concentrated aqueous solution, leading to high percentages of cages in PAM membranes for potential use high-temperature exchange (PEMs). A fraction 92.0 wt% conductivity as 0.132 S cm−1 at 183 °C were obtained. The by obeys Fickian diffusion process. Protons migrate along channels from bonded framework or PO⋯H–O hydrogen bonds molecules according Grotthuss mechanism. This new concept, combination good retention simple-synthesis, opens approach PEMs.
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