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Updated: Aug 20, 2025
08:31
Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition
Published on: October 3, 2018
8.5K
A Template Editing Strategy to Create Interlayer-Confined Active Species for Efficient and Durable Oxygen Evolution
Depei Liu1,2, Yuandong Yan1, Hu Li1
1Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Eco-materials and Renewable Energy Research Center (ERERC), College of Engineering and Applied Sciences, Nanjing University, No. 22, Hankou Road, Nanjing, Jiangsu, 210093, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|November 18, 2022
Summary
Researchers developed a new method to create highly active and stable oxygen evolution reaction (OER) electrocatalysts. This approach enhances efficiency and durability for energy conversion and storage technologies.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Oxygen evolution reaction (OER) electrocatalysts suffer from high overpotentials and unstable active sites, limiting energy technologies.
- Developing efficient and durable OER catalysts is crucial for energy conversion and storage.
Purpose of the Study:
- To propose a template editing strategy for creating highly active and stable OER electrocatalysts.
- To address limitations in efficiency and stability of current OER catalysts.
Main Methods:
- Utilized a template editing strategy involving chemical etching-assisted electroxidation of layered Ni-BDC metal-organic frameworks.
- Created layered γ-NiOOH with intercalated Ni-O species within an interlayer-confined architecture.
Main Results:
- Achieved an extremely low OER overpotential of 130 mV.
- Demonstrated 1000 hours of stability at 100 mA cm⁻².
- The new catalyst structure suppressed undesirable phase transformations and exposed high-density active sites.
Conclusions:
- The proposed strategy successfully creates efficient and durable OER electrocatalysts.
- The interlayer-confined intercalated architecture provides an ideal reaction region for OER.
- This work demonstrates the potential for stable, homogeneous-like catalysis in heterogeneous systems.
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