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Updated: Feb 10, 2026
11:15
HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin
Published on: July 23, 2016
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Tip-Induced Self-Enhanced Concentration Gradients Catalyst for Sustainable Electrocatalytic Urea Synthesis.
Mingyu Chen1, Xupeng Qin2, Nannan Guo3
1State Key Laboratory of Chemo and Biosensing, College of Chemistry and Chemical Engineering, International Joint Lab of Energy Electrochemistry of the Ministry of Education, Hunan University, Changsha, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|February 9, 2026
Summary
This study introduces a novel tip-induced electric field strategy for efficient electrocatalytic C─N coupling in sustainable urea synthesis. The method enhances reaction kinetics, overcoming limitations of previous approaches for energy and environmental solutions.
Area of Science:
- Electrochemistry
- Materials Science
- Sustainable Chemistry
Background:
- Electrocatalytic C─N coupling for urea synthesis from CO2 and NO3- offers sustainable solutions.
- Challenges include sluggish kinetics and competing hydrogen evolution reaction (HER), limiting efficiency.
Purpose of the Study:
- To develop a strategy for enhanced electrocatalytic C─N coupling via a tip-induced local electric field.
- To improve urea synthesis efficiency and energy conversion.
Main Methods:
- Constructing Co3O4 nanoneedles on carbon cloth to create a tip-induced local electric field.
- Utilizing finite element simulations and operando spectroscopic characterizations.
- Co-reduction of CO2 and NO3- for urea synthesis.
Main Results:
- Achieved ultra-low potential of -0.60 V vs RHE with high urea yield rate (49.63 umol h-1 cm-2) and Faradic efficiency (21.37%).
- Tip-induced electric field enriched K+ ions, stabilizing intermediates and promoting C─N coupling.
- Operando spectroscopy confirmed enhanced C─N coupling under intensified local electric fields.
Conclusions:
- The tip-induced local electric field strategy is effective for energy-efficient C─N coupling.
- This approach offers a generalizable method for sustainable nitrogen and carbon resource utilization.
- Enables practical implementation of ambient condition urea synthesis.
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