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In this paper, a 600h life test of a high temperature PEMFC based on phosphoric acid (H 3 PO 4 )-doped polybenzimidazole (PBI) (H 3 PO 4 /PBI HT-PEMFC) at a current density of 714mAcm −2 (the beginning 510h continuous test) and 300mAcm −2 (the last 90h intermittent test) was carried out. After the life test, degradation of the MEA occurred. The H ...
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