Cu–Pd/Zeolite as Efficient Thermo‐Catalyst to Oxidize Low‐Concentration Methane

Abstract Although methane (CH 4 ) predominantly exists in low concentration, it contributes significantly to global warming and just second to CO 2 . Its inert characteristics present both a pressing need and a significant challenge for mitigation strategies, including thermal catalytic oxidation. To address this challenge, we synthesized low cost mordenite zeolite (MOR) with highly dispersed Cu–Pd (Pd: 0.10 wt%) as efficient thermo‐catalyst to oxidize low‐concentration CH 4 (200 ppm). The Cu–Pd–MOR catalyst achieves 90% CH 4 conversion at 358 °C and exhibits improved durability over 100 h of continuous operation. Incorporating Cu enables reduction in Pd loading while maintaining high activity, demonstrating a synergistic Cu–Pd interaction that enhances metal dispersion and thermal stability. Compared with Pd‐only MOR catalysts, the Cu–Pd system delivers advanced low‐temperature activity and long‐term stability, offering a cost‐effective route for methane removal.