High voltage driven MnO₂/CuO for efficient oxidation of 5-hydroxymethylfurfural

Area of Science:

• Electrochemistry
• Materials Science

Background:

• Electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) is crucial for sustainable chemical production.
• Achieving high efficiency and selectivity in HMF electrooxidation, particularly at elevated potentials, remains a significant challenge.

Purpose of the Study:

• To develop and investigate a novel electrocatalyst for efficient HMF oxidation to FDCA.
• To overcome the limitations of low efficiency and selectivity in HMF electrooxidation at high voltages.

Main Methods:

• Fabrication of a manganese dioxide/copper oxide (MnO2/CuO) composite electrocatalyst.
• Electrochemical characterization of the MnO2/CuO catalyst for HMF oxidation.

Main Results:

• The MnO2/CuO catalyst demonstrated high performance in HMF electrooxidation.
• Achieved 98.2% Faraday efficiency for FDCA production at 72.12 mA cm-2 and 1.6 VRHE.
• Maintained 80.2% Faraday efficiency at a higher potential of 1.7 VRHE.

Conclusions:

• The developed MnO2/CuO electrocatalyst offers a promising approach for efficient high-voltage FDCA production.
• This work provides a novel strategy for advancing electrocatalytic HMF oxidation processes.