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The activity of catalyst could be enhanced by the temperature rising, so it is a suitable way to reduce the noble metal loading for the catalyst. However, the corrosion of carbon supports will be remarkable in the high temperature proton exchange membrane fuel cells (HT-PEMFC, >100 °C). This report demonstrated a novel Ti 3 C 2 T x and CNT hybrid material as the catalytic support, and Pt nanowires (Pt NWs) is loaded on the hybrid support to construct the catalyst for HT-PEMFC. The Pt NWs/Ti 3 C 2 T x -CNT performs higher electrochemical activity, better stability than that of commercial Pt/C. The mass activity and specific activity of Pt NWs/Ti 3 C 2 T x -CNT catalysts are 3.89 and 3.02 times as that of Pt/C, respectively. The power densities of HT-PEMFC showed 155.4 mW cm−2 and 182 mW cm−2 at 150 and 180 °C, respectively. • The mass activity of Pt NWs/Ti3C2Tx-CNT is 3.89 times as that of Pt/C. • The catalyst superior performance is mainly ascribed to the synergistic effect. • The peak power density based on Pt NWs/Ti3C2Tx-CNT achieves 182 mW cm-2 at 180 °C. [ABSTRACT FROM AUTHOR]