Unusual Activity of Rationally Designed Cobalt Phosphide/Oxide Heterostructure Composite for Hydrogen Production in Alkaline Medium
Merfat M. Alsabban, Mathan K. Eswaran, Karthik Peramaiah, Wandi Wahyudi, Xiulin Yang, Vinoth Ramalingam, Mohamed Nejib Hedhili, Xiaohe Miao, Udo Schwingenschlögl, Lain‐Jong Li, Vincent Tung, Kuo‐Wei Huang
Abstract
= -43 mV). Theoretical studies revealed that the redistribution of electrons at laterally dispersed Co phosphide/oxide interfaces gives rise to a synergistic effect in the heterostructured composite, by which various Co oxide phases initiate the dissociation of the alkaline water molecule. Meanwhile, the highly active CoP further facilitates the adsorption-desorption process of water electrolysis, leading to extremely high HER activity.
Topics & Concepts
PhosphideOxideCatalysisMaterials scienceCobalt oxideHydrogen productionChemical engineeringComposite numberCobaltDesorptionElectrolysisDissociation (chemistry)AdsorptionWater splittingHydrogenElectrolysis of waterInorganic chemistryChemistryPhotocatalysisElectrodeComposite materialMetallurgyOrganic chemistryPhysical chemistryEngineeringElectrolyteElectrocatalysts for Energy ConversionAdvanced battery technologies researchAdvanced Photocatalysis Techniques