High-efficiency of hydrogen production over Fe-doped CuGa2-xFexO4 spinel catalysts at low temperature

CuGa 2-x Fe x O 4 spinel catalysts were applied for methanol steam reforming (MSR). Results indicated that the increase in Fe 3+ doping altered the crystal structure. SEM and BET results indicate that the catalyst exhibits a particle structure. Fe-doping affects its morphology and surface area. The MSR experimental results demonstrated that CuGa 0.4 Fe 1.6 O 4 exhibited excellent catalytic performance. This is attributed to the change in the original lattice structure caused by Fe doping. Furthermore, the optimal operating conditions for MSR reaction were optimized. After the 40-hour stability test, the methanol conversion rate remained above 90 %, and the hydrogen production reached 6 mmol/min/g cat .