Journal
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
Volume 342, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2023.123466
Keywords
Electron spin state; Millimetric Co-Al oxide; Peroxymonosulfate
Ask authors/readers for more resources
This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
Rationally developing millimetric metal catalysts with tailored electron function is crucial for water decontamination, but challenges remain due to insufficient understanding on their electronic structure engineering and the underlying mechanism. Here, through constructing bonded Co-O-Al unit sites on the millimetric gamma-Al2O3 spheres, we report a feasible and scalable strategy of modulating the 3d electron configurations and spin states of supported tetrahedral and octahedral cobalt cations just by adjusting the radius of support curvature. The tetrahedral and octahedral cobalt centers with tailored electron spin states showed a synergism in peroxymonosulfate activation to generate SO4 center dot- and reactive oxygen (O*), in which the latter was converted into 1O2 and O2 center dot-. The electronic structure-oriented spin catalysis affected the formation of reactive species and the pathway of pollutant degradation. This work will stimulate the design and mass production of macroscopic spin catalysts with superior activity, reusability and stability for catalytic water purification.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available