Lattice distortion of crystalline-amorphous nickel molybdenum sulfide nanosheets for high-efficiency overall water splitting: libraries of lone pairs of electrons and <i>in situ</i> surface reconstitution
Zhikai Shi, Zebin Yu, Juan Guo, Ronghua Jiang, Yanping Hou, Yushan Chen, Honglei Chen, Mi Wang, Han Pang, Wenjun Tang
Abstract
Raman test results demonstrate that during the oxygen evolution reaction (OER), the surface of the nickel molybdenum sulfide was reconstructed, and highly active Ni-OOH was generated. From the calculated free energy diagrams, the Ni-OOH could optimize the reaction barrier of the rate-determining step (RDS) for the OER to enhance the slow oxygen evolution reaction kinetics. This work will contribute to the rational design of a 2d-TMSs electrocatalyst, as well as investigation of the catalytic mechanism.
Topics & Concepts
Lone pairElectrocatalystMaterials scienceNickelAmorphous solidCrystallographyElectrochemistryChemistryPhysical chemistryElectrodeMetallurgyOrganic chemistryMoleculeElectrocatalysts for Energy Conversion2D Materials and ApplicationsAdvanced Photocatalysis Techniques