Atomically embedded synergetic dual-metal catalysis FeO&MoS2 nanoparticles on sodalite structural zeolite toward electrochemical methanol oxidation reaction

Abstract

To improve the performance of the direct methanol fuel cells (DMFCs), the atomically embedded synergetic dual-metal catalyst nanosized ferrous oxide & molybdenum disulfide @ sodalite structural zeolite (FeO&MoS2@SOD) is designed and generated through self-assemble process under hydrothermal condition. The FeO&MoS2@SOD is characterized by SEM, XRD, TEM, EDX and XPS to reveal its morphology, composition, fine structure, element distribution and element valence, respectively. Its performance in the electrochemical methanol oxidation reaction (MOR) is investigated by EIS, CV and A i-t C with the current density of 24.33 mA cm−2 or 144 mA mg−1, and the power density of 33.99 mW cm−2. The excellent behavior of the obtained catalyst could be ascribed to the synergic effect of the highly dispersed FeO and MoS2 nanoparticles on the surface of the zeolite.