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Updated: Nov 17, 2025

Author Spotlight: A Rapid, Microwave-Assisted Hydrothermal Synthesis Of Nickel Hydroxide Nanosheets
Published on: August 18, 2023
Multi-shelled hollow layered double hydroxides with enhanced performance for the oxygen evolution reaction
Yongji Qin1, Bingqing Wang, Yuan Qiu
1Institute for New Energy Materials & Low-Carbon Technologies and Tianjin Key Lab for Photoelectric Materials & Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China. 383151026@qq.com.
Researchers developed multi-shelled hollow layered double hydroxides (LDHs) using metal-organic frameworks (MOFs). These novel hollow LDHs show superior performance in the oxygen evolution reaction compared to other structures and commercial catalysts.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Hollow materials with unique structures offer enhanced properties for advanced applications.
- Layered double hydroxides (LDHs) are versatile materials with significant potential in catalysis.
- Developing efficient electrocatalysts for the oxygen evolution reaction (OER) is crucial for energy technologies.
Purpose of the Study:
- To develop a novel in situ transformation strategy for fabricating multi-shelled hollow layered double hydroxides (LDHs).
- To investigate the structural properties and catalytic performance of the synthesized multi-shelled hollow LDHs.
- To compare the oxygen evolution reaction (OER) activity of multi-shelled hollow LDHs with single-shelled and double-shelled counterparts, as well as commercial iridium dioxide (IrO2).
Main Methods:
- Utilizing multi-layered metal-organic frameworks (MOFs) as sacrificial templates.
- Employing an in situ transformation process to convert MOFs into layered double hydroxides (LDHs).
- Characterizing the morphology, structure, and composition of the fabricated hollow LDHs using advanced techniques.
- Evaluating the electrocatalytic activity for the oxygen evolution reaction (OER) in an electrochemical setup.
Main Results:
- Successfully synthesized multi-shelled hollow NiZnCoFe layered double hydroxides (LDHs) via an in situ MOF templating strategy.
- The multi-shelled hollow LDHs exhibited a unique hierarchical structure with high surface area.
- The fabricated multi-shelled hollow LDHs demonstrated significantly enhanced performance in the oxygen evolution reaction (OER) compared to single-shelled and double-shelled hollow LDHs and commercial IrO2.
Conclusions:
- The in situ transformation of MOFs provides an effective route to create complex multi-shelled hollow LDHs.
- The multi-shelled architecture is key to the superior electrocatalytic activity observed for the oxygen evolution reaction.
- This work presents a promising new class of hollow LDH electrocatalysts for efficient energy conversion applications.
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