A composite membrane based on PTFE and solid poly (mixed acid (PMo12O40)X-(PO-OH)Y) for high-temperature fuel cells
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A novel high-temperature proton exchange membrane (PEM) (PTFE/(PMo12O40)X-(PO-OH)Y composite membranes) was prepared by impregnating mixed acid into the porous PTFE membrane. The porous PTFE membrane serves as the support structure of the membrane, and (PMo12O40)X-(PO-OH)Y sol is used as the proton conductor. The solid poly acid (PMo12O40)X-(PO-OH)Y exhibits a proton conductivity of 0.025 S cm−1 at 180 °C, and the PTFE/(PMo12O40)X-(PO-OH)Y membrane presents a good proton conductivity (0.02 S cm−1) when the relative humidity is below 0.5% and temperature is 180 °C. Besides, the PTFE/(PMo12O40)X-(PO-OH)Y membrane performs moderate property as tested in hydrogen fuel cells. SEM and EDX reveal that the structure of (PMo12O40)X-(PO-OH)Y gel is uniformly distributed in the pores of PTFE, which enhanced the proton conductivity of the composite membranes.
KeywordsPTFE (PMo12O40)X-(PO-OH)Y High-temperature PEMFC Proton conductivity
This work was finished in Keith Scott Group of Newcastle University, UK.
- 5.Barbir F (2005) PEM fuel cells theory and practice. Elsevier Academic Press, New YorkGoogle Scholar
- 6.Nalbant Y, Colpan CO, Devrim Y (2019) Energy and exergy performance assessments of a high temperature-proton exchange membrane fuel cell based integrated cogeneration system. Int J Hydrogen Energy onlineGoogle Scholar