Journal
ACS OMEGA
Volume 5, Issue 28, Pages 17628-17636Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.0c02110
Keywords
-
Categories
Funding
- National R&D Program of China [2018YFB1502505]
- Scientific and Technological Achievement Transformation Program of Sichuan Province [2017CC0017]
- Science and Technology Program of Sichuan Province [2016GZ0027]
Ask authors/readers for more resources
A perfluorosulfonic acid (PFSA) ionomcr, used as the proton conductor in the catalyst layer, influences significantly the performance of proton exchange membrane fuel cell catalyst-coated membrane (CCM). In this paper, SSC-CCM is prepared by the SSC-PFSA (Aquivion, EW 720) ionomcr, and the comparative sample (LSC-CCM) is based on the LSC-PFSA ionomer (Nafion, EW 1100). Compared with LSC-CCM, SSC-CCM shows higher porosity, larger electrochemical surface area (ECSA), and smaller high-frequency resistance. Polarization curves of SSC-CCM tested by the short stack show better performance than those of LSC-CCM, especially under the lower relative humidity operations. Moreover, the SSC-CCM outputs higher voltage and is more stable in the dynamic process with temperature continuously increasing under lower relative humidity operation. Such excellent performance of SSC-CCM is confirmed from the higher proton conductivity of SSC-PFSA under low relative humidity. These results indicate that the SSC-PFSA ionomer could be employed for the CCM catalyst layer under the operation conditions of low relative humidity and dynamic running for automotive applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available