Fig. 5: The mechanism of the integration of photothermal and catalytic effects.

a Schematic illustration of H2 desorption and H diffusion pathway of MgH2 on the surface of Mg2Ni(Cu) alloy and b the corresponding energy profiles. c Schematic diagram of the ideal integration of photothermal and catalytic effects via continuous in situ atomic reconstruction upon repeated dehydrogenation process. Source data are provided as a source data file.