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Preparation of Liquid-exfoliated Transition Metal Dichalcogenide Nanosheets with Controlled Size and Thickness: A State of the Art Protocol
Published on: December 20, 2016
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Metal-organic layer derived metal hydroxide nanosheets for highly efficient oxygen evolution
Wen-Da Zhang1, Xiaodong Yan, Tao Li
1Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China. zhiguogu@jiangnan.edu.cn.
Chemical Communications (Cambridge, England)
|April 24, 2019
Summary
Metal hydroxide nanosheets were created from metal-organic layers. The iron hydroxide nanosheets showed improved alkaline oxygen evolution, requiring only a low overpotential for efficient performance.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Metal-organic layers (MOLs) are versatile precursors for nanomaterial synthesis.
- Efficient electrocatalysts are crucial for energy conversion technologies, particularly for oxygen evolution reactions.
Purpose of the Study:
- To fabricate metal hydroxide nanosheets from MOLs.
- To investigate the electrocatalytic activity of these nanosheets for alkaline oxygen evolution.
Main Methods:
- Conformal conversion of metal-organic layers into metal hydroxide nanosheets.
- Electrochemical characterization of the synthesized Fe(OH)3 nanosheets for oxygen evolution reaction (OER).
Main Results:
- Successfully synthesized a series of metal hydroxide nanosheets via a conformal conversion process.
- MOL-derived Fe(OH)3 nanosheets demonstrated an ultrathin layered structure.
- Achieved enhanced alkaline oxygen evolution with a low overpotential of 271 mV at 10 mA cm-2.
Conclusions:
- The conformal conversion of MOLs is an effective strategy for fabricating advanced nanomaterials.
- Ultrathin Fe(OH)3 nanosheets are promising electrocatalysts for efficient alkaline oxygen evolution.
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