Dynamics of hydrogen in molybdenumdisulfide and molybdenum carbide electrodes
Power-to-gas is one of the most promising concepts to store renewable energy. Hydrogen gas is produced from water when excess energy is available and reconverted when energy is in demand. For the hydrogen evolution reaction (HER) molybdenum disulfide, MoS2, is an intensely studied catalyst and Mo2C is one of the emerging candidates. Recent electrochemical studies have led to substantial improvements in our knowledge about the catalytic activity of MoS2 and it is clear that the hydrogen sorption and diffusion dynamics play a crucial role, however the microscopic mechanisms of the catalytic activity remain largely unsolved. Using neutron neutron spin echo we propose to study the evolution of the diffusivity of hydrogen in MoS2 and Mo2C catalyst particles on carbon electrodes at different stages of the catalytic process.
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TRAEGER Franziska and FOUQUET Peter. (2018). Dynamics of hydrogen in molybdenumdisulfide and molybdenum carbide electrodes. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-05-491
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