Passivation Engineering toward Integrated Acidic Oxygen Evolution Electrodes with Stable Catalytic Activity for over 3000 h
Tianjin University of Science and Technology · Tianjin University · +1 more institution
Abstract
Acidic oxygen evolution electrodes are essential anodes in acidic water splitting, carbon dioxide, nitrogen electrochemical reduction, etc. The iridium–ruthenium (Ir–Ru)-based catalysts have the potential to withstand the harsh acid corrosion and oxidation environments of the oxygen evolution reaction, but there are still challenges in designing and preparing highly active and stable integrated Ir–Ru electrodes. Herein, we develop a cost-effective and scaled-up passivation engineering strategy to prepare an integrated Ir–Ru anode containing a Ti substrate, a manganese titanate (MnTiO3) passivation layer, and an Ir–Ru oxide catalytic layer. By uniformly loading an appropriate amount of divalent Mn ions (Mn2+)…
Citation impact
- FWCI
- 13.74
- Percentile
- 100%
- References
- 52
Authors
7- JCJiayi Chen
Tianjin University of Science and Technology, Tianjin University
- JYJie-Tian Yang
China National Petroleum Corporation (China)
- YHYu-Shu Han
Tianjin University of Science and Technology, Tianjin University
- YHYuqiong Huang
Tianjin University of Science and Technology, Tianjin University
- NTNana Tian
Tianjin University of Science and Technology, Tianjin University
Topics & keywords
- Catalysis
- Passivation
- Oxygen
- Oxygen evolution
- Chemistry
- Electrode
- Materials science
- Chemical engineering