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Related Experiment Video

Updated: Dec 24, 2025

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Solar-Driven Electrochemical Green Fuel Production from CO₂ and Water Using Ti₃C₂T_x MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

Superaerophilic copper nanowires for efficient and switchable CO₂ electroreduction.

Yusheng Zhang¹, Zhao Cai, Yuxin Zhao

¹State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China. sunxm@mail.buct.edu.cn kuangyun@mail.buct.edu.cn.

Nanoscale Horizons

|April 8, 2020

Summary

This study developed a superaerophilic copper nanowire catalyst using polytetrafluoroethylene for efficient carbon dioxide conversion. The advanced catalyst enhances selectivity for CO2 reduction while suppressing hydrogen evolution.

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Area of Science:

Electrochemistry
Materials Science
Catalysis

Background:

Copper is a key electrocatalyst for CO2 conversion, but achieving high selectivity and suppressing hydrogen evolution is challenging.
Advanced catalyst design is needed to improve efficiency and stability in CO2 reduction reactions.

Purpose of the Study:

To develop a novel Cu-based catalyst for enhanced selectivity in CO2 reduction.
To suppress hydrogen evolution during electrochemical CO2 conversion.
To improve the stability of copper electrocatalysts.

Main Methods:

Utilized Cu nanowires (Cu NWs) as the base material.
Applied polytetrafluoroethylene (PTFE) as a surface modifier to create a superaerophilic electrode.
Employed a wettability control strategy to tune reactant supply and adsorption.

Main Results:

The superaerophilic Cu NW electrode demonstrated tunable selectivity for CO2 reduction reaction (CO2RR).
Achieved high CO selectivity (71% Faraday efficiency at -0.4 V vs. RHE) and HCOOH selectivity (68% Faraday efficiency at -0.6 V vs. RHE).
Enhanced gas and ion diffusion, leading to improved catalyst stability and suppressed hydrogen evolution.

Conclusions:

The wettability tuning strategy offers a facile method to optimize gas and ion diffusion layers for CO2RR.
This approach significantly enhances the performance and stability of Cu-based electrocatalysts.
The strategy shows potential for application in other gas-consuming electrocatalytic systems.