Trimetallic spinel NiCo<sub>2−<i>x</i></sub>Mo<sub><i>x</i></sub>O<sub>4</sub> oxygen evolution catalyst enabling bias-free solar water splitting with inverted perovskite solar cells
Mahmoud G. Ahmed, Yi Fei Phang, Ying Fan Tay, Anupam Sadhu, Pritish Mishra, Akhmad Herman Yuwono, Lydia Helena Wong
Abstract
Partial Mo 6+ leaching selectively activates Ni 2+ in NiCo 2− x Mo x O 4 , forming NiOOH, to enhance OER. When integrated into a water electrolyzer powered by a p-i-n perovskite solar cell, the system enables bias-free solar H 2 production at 8.8% efficiency.
Topics & Concepts
SpinelOxygen evolutionPerovskite (structure)Water splittingCatalysisOxygenMaterials scienceCrystallographyInorganic chemistryChemistryPhysical chemistryMetallurgyElectrochemistryBiochemistryOrganic chemistryPhotocatalysisElectrodeElectrocatalysts for Energy ConversionAdvanced battery technologies researchPerovskite Materials and Applications