Nitrogen-doped Co3O4 nanowires enable high-efficiency electrochemical oxidation of 5-hydroxymethylfurfural

Developing highly efficient and cost-effective catalysts for electrochemically oxidizing biomass-derived 5-hydroxymethylfurfural (HMF) into value-added 2,5-furandicarboxylic acid (FDCA) is of great importance. Herein, we report a controllable nitrogen doping strategy to significantly improve the cat...

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Bibliographic Details
Published in:Chinese chemical letters 2022-01, Vol.33 (1), p.385-389
Main Authors: Sun, Mengxiao, Wang, Yue, Sun, Chunsen, Qi, Yan, Cheng, Jia, Song, Yumei, Zhang, Lixue
Format: Article
Language:English
Subjects:
Co3O4
Electrochemical oxidation
FDCA
HMF
Nitrogen doping
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Summary:Developing highly efficient and cost-effective catalysts for electrochemically oxidizing biomass-derived 5-hydroxymethylfurfural (HMF) into value-added 2,5-furandicarboxylic acid (FDCA) is of great importance. Herein, we report a controllable nitrogen doping strategy to significantly improve the catalytic activity of Co3O4 nanowires for highly selective electro-oxidation of HMF into FDCA. The nitrogen doping leads to the generation of defects including nitrogen dopants and oxygen vacancies in Co3O4 nanowires, which is conducive to the formation of catalytically active sites. As a result, the electro-oxidation potential for HMF is only 1.38 V (vs. RHE) when the current density reaches 50 mA/cm2. More importantly, the conversion rate of HMF is as high as 99.5%, and the yield of FDCA is up to 96.4%. In this work, we report a controllable N-doping strategy to significantly improve the electrocatalytic activity of Co3O4 nanowires for highly selective oxidation of HMF into FDCA. [Display omitted]
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2021.05.009