Electrochemical transformation of Prussian blue analogues into ultrathin layered double hydroxide nanosheets for water splitting
Baghendra Singh, Om Prakash, Pralay Maiti, Prashanth W. Menezes, Arindam Indra
Abstract
Herein, we demonstrate a template directed route for the synthesis of self-supported cobalt-iron based Prussian blue analogues (PBAs). The PBAs are electrochemically transformed into layered double hydroxides to produce excellent water oxidation and hydrogen evolution activity, while the overall water splitting is attained at a cell voltage of 1.58 V to reach 20 mA cm-2 current density.
Topics & Concepts
Prussian blueHydroxideWater splittingElectrochemistryCobalt hydroxideMaterials scienceLayered double hydroxidesChemical engineeringOxygen evolutionCobaltPotassium hydroxideElectrodeNanotechnologyInorganic chemistryCatalysisChemistryOrganic chemistryPhysical chemistryEngineeringPhotocatalysisElectrocatalysts for Energy ConversionAdvanced battery technologies researchSupercapacitor Materials and Fabrication