Homogeneously dispersed multimetal oxygen-evolving catalysts
East China University of Science and Technology · University of Toronto · +8 more institutions
Abstract
Earth-abundant first-row (3d) transition metal-based catalysts have been developed for the oxygen-evolution reaction (OER); however, they operate at overpotentials substantially above thermodynamic requirements. Density functional theory suggested that non-3d high-valency metals such as tungsten can modulate 3d metal oxides, providing near-optimal adsorption energies for OER intermediates. We developed a room-temperature synthesis to produce gelled oxyhydroxides materials with an atomically homogeneous metal distribution. These gelled FeCoW oxyhydroxides exhibit the lowest overpotential (191 millivolts) reported at 10 milliamperes per square centimeter in alkaline electrolyte. The catalyst shows no evidence of…
Citation impact
- FWCI
- 78.58
- Percentile
- 100%
- References
- 57
Authors
25- BZBo ZhangCorresponding
East China University of Science and Technology, University of Toronto
- XRX. R. ZhengCorresponding
Tianjin University, University of Toronto
- OVOleksandr VoznyyCorresponding
University of Toronto
- RCRiccardo Comin
University of Toronto
- MBMichal Bajdich
SLAC National Accelerator Laboratory, Interface (United States), Stanford University
Topics & keywords
- Overpotential
- Catalysis
- Oxygen evolution
- Tungsten
- Transition metal
- Cobalt
- Density functional theory
- Valency