Promotion of proton conduction in polymer electrolyte membranes by 1H-1,2,3-triazole
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- Promotion of proton conduction in polymer electrolyte membranes by 1H-1,2,3-triazole
- Zhou, Z; Li, SW; Zhang, YL; Liu, Meilin; Li, W
- IMIDAZOLE; ACID; TAUTOMERISM
- Issue Date
- AMER CHEMICAL SOC
- JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.127, no.31, pp.10824 - 10825
- We report 1H-1,2,3-triazole as an active group to dramatically enhance proton conduction in a polymer electrolyte membrane (PEM). The conductivities of a poly(4-vinyl-1H-1,2,3-triazole) membrane without any acidic dopants are about 10 5 times greater than those of poly(4-vinylimidazole) in dry air at 50-150 °C. Polymers with groups promoting proton conduction attached to the backbone have great potential to offer excellent mechanical properties and long-term stability. Further, 1H-1,2,3-triazole and PEMs containing 1H-1,2,3-triazole are stable in a wide potential range, implying excellent electrochemical stability under fuel cell operating conditions.
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