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Updated: Mar 21, 2026
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Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
Published on: May 23, 2018
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Electronic structure modulation of a CoN/TiC-C nanoarray by vanadium doping for enhanced alkaline oxygen evolution.
Yi Sun1, Weiye Shi1, Zhongbao Wang1
1Department of Materials Science and Engineering, Hainan University, Haikou 570228, P. R. China. chunqinghuo@hainanu.edu.cn.
Chemical Communications (Cambridge, England)
|March 19, 2026
Summary
Vanadium-doped cobalt nitride/titanium carbide-carbon nanoarrays significantly improve the oxygen evolution reaction. This advancement offers high efficiency and stability for water electrolysis applications.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- The oxygen evolution reaction (OER) is a critical bottleneck in water electrolysis.
- Developing efficient and stable electrocatalysts is essential for advancing clean energy technologies.
Purpose of the Study:
- To investigate the effect of vanadium doping on CoN/TiC-C nanoarrays for enhanced OER performance.
- To evaluate the stability and efficiency of the developed catalyst for water electrolysis.
Main Methods:
- Synthesis of vanadium-doped CoN/TiC-C nanoarrays.
- Electrochemical characterization of the catalyst's OER activity using techniques such as cyclic voltammetry and chronoamperometry.
- Long-term stability testing under demanding operational conditions.
Main Results:
- The vanadium-doped CoN/TiC-C nanoarrays exhibited a low overpotential of 238 mV at a current density of 100 mA cm-2.
- The catalyst demonstrated excellent long-term stability, operating reliably for 65 hours at 100 mA cm-2.
- The doping strategy effectively boosted the electrocatalytic activity and durability.
Conclusions:
- Vanadium doping is a promising strategy to enhance the OER performance of CoN/TiC-C nanoarrays.
- The developed catalyst shows significant potential for efficient and stable water electrolysis.
- Further research into doped transition metal compounds could lead to breakthroughs in electrocatalysis.
