Activating lattice oxygen in NiFe-based (oxy)hydroxide for water electrolysis
South China University of Technology · City University of Hong Kong · +3 more institutions
Abstract
Abstract Transition metal oxides or (oxy)hydroxides have been intensively investigated as promising electrocatalysts for energy and environmental applications. Oxygen in the lattice was reported recently to actively participate in surface reactions. Herein, we report a sacrificial template-directed approach to synthesize Mo-doped NiFe (oxy)hydroxide with modulated oxygen activity as an enhanced electrocatalyst towards oxygen evolution reaction (OER). The obtained MoNiFe (oxy)hydroxide displays a high mass activity of 1910 A/g metal at the overpotential of 300 mV. The combination of density functional theory calculations and advanced spectroscopy techniques suggests that the Mo dopant upshifts the O 2 p band…
Citation impact
- FWCI
- 26.59
- Percentile
- 100%
- References
- 71
Authors
9Topics & keywords
- Overpotential
- Oxygen evolution
- Electrocatalyst
- Hydroxide
- Oxygen
- Cobalt hydroxide
- Inorganic chemistry
- Materials science