Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6601978 | Electrochimica Acta | 2018 | 10 Pages |
Abstract
Highly sulfonated poly(ether ether ketone) (PEEK) polymer is hydrogenated and then readily grafted on GO to provide nanohybrid material GO-g-SPEEK. The material shows good enough properties for the preparation of proton exchange membranes. First, the GO-g-SPEEK membrane has much more water uptake but less water swelling compared with Nafion®, and an excellent proton conductivity of 0.219 Scmâ1 at 90â¯Â°C. Then, it demonstrates a peak power density of 112â¯mWcmâ2 when utilized in a H2/air fuel cell at circumstance temperature. Further, blending of the materials with Nafion leads to composite membranes of GO-g-SPEEK/Nafion, which has a close proton conductivity to that of GO-g-SPEEK but far higher cell performances. Of the composite membranes, GO-g-SPEEK/Nafion-33 reveals cell performance of 182â¯mWcmâ2 at 25â¯Â°C and 213â¯mWcmâ2 at 60â¯Â°C. These results indicate that Nafion might serve only as an enhancer of compatibility between membrane and Nafion-supported catalyst phase in the membrane electrode assembly, and therefore suggest that the GO-g-SPEEK may be a promising membrane material for the application in proton exchange membrane fuel cells.
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Shuitao Gao, Hulin Xu, Zhou Fang, Amina Ouadah, Huan Chen, Xin Chen, Lubin Shi, Bing Ma, Chaojun Jing, Changjin Zhu,