High-spin Co3+ in cobalt oxyhydroxide for efficient water oxidation
National University of Singapore · Agency for Science, Technology and Research · +5 more institutions
Abstract
Abstract Cobalt oxyhydroxide (CoOOH) is a promising catalytic material for oxygen evolution reaction (OER). In the traditional CoOOH structure, Co 3+ exhibits a low-spin state configuration ( $${t}_{2{{{{{\rm{g}}}}}}}^{6}{e}_{{{{{{\rm{g}}}}}}}^{0}$$ t 2 g 6 e g 0 ), with electron transfer occurring in face-to-face $${t}_{2{{{{{\rm{g}}}}}}}^{*}$$ t 2 g * orbitals. In this work, we report the successful synthesis of high-spin state Co 3+ CoOOH structure, by introducing coordinatively unsaturated Co atoms. As compared to the low-spin state CoOOH, electron transfer in the high-spin state CoOOH occurs in apex-to-apex $${e}_{{{{{{\rm{g}}}}}}}^{*}$$ e g * orbitals, which exhibits…
Citation impact
- FWCI
- 20.02
- Percentile
- 100%
- References
- 46
Authors
16Topics & keywords
- Materials science
- Algorithm
- Computer science
- Clean water and sanitation