RuO 2 –CeO 2 Lattice Matching Strategy Enables Robust Water Oxidation Electrocatalysis in Acidic Media via Two Distinct Oxygen Evolution Mechanisms
Zhengzhou University · University of Sheffield · +4 more institutions
Abstract
The discovery of acid-stable and highly active electrocatalysts for the oxygen evolution reaction (OER) is crucial in the quest for high-performance water-splitting technologies. Herein, a heterostructured RuO2–CeO2 electrocatalyst was constructed by using a lattice-matching strategy. The interfacial Ru–O–Ce bridge structure provided a channel for electron transfer between Ru and Ce, creating a lattice stress that distorts the local structure of RuO2. The resulting RuO2–CeO2 catalyst exhibited attractive stability with negligible decay after 1000 h of the OER in 0.5 M H2SO4, along with high activity with an overpotential of only 180 mV at 10 mA cm–2. In situ attenuated total reflectance surface-enhanced…
Citation impact
- FWCI
- 20.16
- Percentile
- 100%
- References
- 48
Authors
10Topics & keywords
- Electrocatalyst
- Overpotential
- Oxygen evolution
- Water splitting
- Chemistry
- Catalysis
- Electrochemistry
- X-ray absorption spectroscopy
- Clean water and sanitation