Dynamic Deprotonation Enhancement Triggered by Accelerated Electrochemical Delithiation Reconstruction during Acidic Water Oxidation
Nanjing University of Aeronautics and Astronautics · National Yang Ming Chiao Tung University · +3 more institutions
Abstract
The structure-dependent transition in reaction pathways during acidic oxygen evolution (OER) is pivotal due to the active site oxidation accompanied by the coordination environment changes. In this work, charge-polarized Ir–O–Co units are constructed in alkali metal cobalt oxides (LiCoO2, and Na0.74CoO2) to modify the lower Hubbard band. Benefiting from the accelerated delithiation reconstruction induced by the altered band structure, typical Ir-LiCoO2 produces high-valent Ir sites with unsaturated coordination through the charge compensation during OER. Oxygen atoms shared by trimetallic sites exhibit strong Bro̷nsted acidity, promoting proton migration for unsaturated Ir sites and dynamically enhancing…
Citation impact
- FWCI
- 15.39
- Percentile
- 100%
- References
- 56
Authors
12- SZSheng Zhao
Nanjing University of Aeronautics and Astronautics
- SHSung‐Fu Hung
National Yang Ming Chiao Tung University
- YWYue Wang
Nanjing University of Aeronautics and Astronautics
- SLShaoxiong Li
Nanjing University of Aeronautics and Astronautics
- JYJuan Yang
Nanjing University of Aeronautics and Astronautics
Topics & keywords
- Chemistry
- Deprotonation
- Overpotential
- Oxygen evolution
- Electrochemistry
- Catalysis
- Inorganic chemistry
- Transition metal
- Clean water and sanitation