NaBH<sub>4</sub>-reduction induced tunable oxygen vacancies in LaNiO<sub>2.7</sub> to enhance the oxygen evolution reaction
Yuwei Jin, Wenjing Huo, Libin Zhang, Yong Li, Qianqian Chen, Xiaodong Zhang, Shuo Yang, Huagui Nie, Xuemei Zhou, Zhi Yang
Abstract
Tunable oxygen vacancies of LaNiO3 (LNO-Vo) are realized by theoretical prediction and the NaBH4-reduction approach. The LNO2.7 catalyst exhibits superior catalytic activity and long-term stability for water oxidation. Direct evidence of the active site center and the intermediates is observed from in situ Raman spectra and DFT calculations.
Topics & Concepts
LanioRaman spectroscopyCatalysisOxygenRedoxChemistryReduction (mathematics)Oxygen reduction reactionIn situMaterials scienceInorganic chemistryPhotochemistryPhysical chemistryPhysicsOrganic chemistryFerroelectricityOptoelectronicsElectrodeGeometryDielectricElectrochemistryOpticsMathematicsElectrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceAdvanced Photocatalysis Techniques