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Updated: Jan 25, 2026
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Multiscale Structures Aggregated by Imprinted Nanofibers for Functional Surfaces
Published on: September 11, 2018
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Activating Three-Dimensional Networks of Fe@Ni Nanofibers via Fast Surface Modification for Efficient Overall Water
Jingying Tao1,2, Yijie Zhang1, Shengping Wang1
1School of Materials Science and Engineering , Tongji University , Shanghai 200123 , China.
ACS Applied Materials & Interfaces
|May 4, 2019
Summary
Researchers developed a novel Fe@Ni-nanofiber electrode for efficient water splitting. This advanced electrocatalyst demonstrates high activity and stability for both oxygen and hydrogen evolution reactions under mild conditions.
Area of Science:
- Materials Science
- Electrochemistry
- Renewable Energy
Background:
- Efficient electrocatalysts are essential for sustainable water-splitting technology.
- Developing catalysts that are active and stable under mild conditions remains a challenge.
Purpose of the Study:
- To synthesize a highly active and stable electrocatalyst for water splitting.
- To create a three-dimensional (3D) porous electrode using nickel (Ni) nanofibers and iron (Fe) modification.
Main Methods:
- Fabrication of a Ni-nanofiber-based 3D network via magnetic-field-assisted reduction.
- Rapid surface modification of the Ni-nanofiber electrode with Fe at room temperature.
- Electrochemical characterization of the Fe@Ni-nanofiber electrode for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER).
Main Results:
- The Fe@Ni-nanofiber electrode exhibited a unique 3D porous structure with a large electrochemical active surface area.
- The electrode demonstrated excellent activity for OER and HER, with low overpotentials of 230 mV and 55 mV, respectively, at 10 mA cm⁻².
- The electrode showed remarkable stability in alkaline electrolyte.
- A water-splitting cell using this electrode required only 1.53 V to achieve 10 mA cm⁻².
Conclusions:
- The Fe@Ni-nanofiber electrode is a promising electrocatalyst for efficient and stable water splitting.
- The facile synthesis approach and enhanced performance highlight the potential for practical applications in hydrogen production.
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