Inside Cover: Mn−O Covalency Governs the Intrinsic Activity of Co‐Mn Spinel Oxides for Boosted Peroxymonosulfate Activation (Angew. Chem. Int. Ed. 1/2021)
Zhiyan Guo, Chen‐Xuan Li, Miao Gao, Xiao Han, Yingjie Zhang, Wenjun Zhang, Wen‐Wei Li
Abstract
Bimetallic spinel oxides are efficient catalysts for peroxymonosulfate (PMS) activation but the catalytic mechanism is unclear. The critical role of Mn−O covalency in determining the intrinsic activity of Co3−xMnxO4 and a new mechanism of Co–Mn synergy are revealed by Wen-Wei Li and co-workers in their Research Article on page 274. Co strengthens Mn−O covalency in the octahedral configuration of Co3−xMnxO4, which lowers the charge transfer energy of the MnOh–PMS interaction and drastically accelerates MnVI/MnIII redox cycling.
Topics & Concepts
Bimetallic stripSpinelOctahedronCatalysisChemistryRedoxCrystallographyInorganic chemistryMaterials scienceMetallurgyCrystal structureBiochemistryWater Quality Monitoring and AnalysisAdvanced oxidation water treatment