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The metal–support interaction offers electronic, compositional, and geometric effects that can enhance the catalytic activity and stability. Herein, a performance‐enhanced electrocatalyst of Pd nanoparticles loaded on a hybrid catalytic support comprised of MXene (Ti3C2Tx) and carbon nanotube (CNT) is demonstrated. Such a hybrid catalyst enhances durability and improves both oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER) activities compared with the Pd/C catalysts. The mass specific activity and specific activity of the Pd/Ti3C2Tx–CNT catalyst are 4.4 and 3.3 times that of Pd/C for ORR, respectively. The peak power density of a alkaline anion exchange membrane fuel cell (AAEMFC) based on the Pd/Ti3C2Tx–CNT (1:2) cathode achieves 48 mW cm−2 at 60 °C. Furthermore, Pd/Ti3C2Tx–CNT also exhibits rapid HER kinetics with a low overpotential of 158 mV at 10 mA cm−2 and a Tafel slope of 50 mV dec−1. Pd/Ti3C2Tx–CNT also provides good stability after 1000 cycles. These remarkable catalytic performances are attributed to the role of Ti3C2Tx and CNT by enhancing the catalytic activity surface area and rapid mass/charge transfer due to the synergistic effect between Pd and Ti3C2Tx–CNT.

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High reaction activity, long-term stability, and lowcost non-noble metal-nitrogen-carbon catalysts (M-N-C) have been widely recognized as prospective catalysts toward an oxygen reduction reaction (ORR) in an alkaline medium. However, sluggish chemical reaction kinetics and the poor stability of the catalysts are still the main challenges for their widespread application. Herein, carbon nanotube (CNT)-MXene hybrid supports are utilized, with non-noble metal FeCo used as the cathode ORR catalyst, for an alkaline anion exchange membrane fuel cell. The FeCo/NC-Mo 2 TiC 2 catalysts exhibit significantly enhanced electrochemical ORR activity, with an onset potential of 1.017 V and a half-wave potential of 0.887 V. Moreover, FeCo/ NC-Mo 2 TiC 2 exhibits remarkable stability, and the half-wave potential is attenuated by only 26 mV after 10000 cycles. The peak power density of the fuel cell by a FeCo/NC-Mo 2 TiC 2 catalyst achieves 501 mW cm −2 .