Author(s) |
Zhang, Li
Jin, Peiyue
Wu, Ze
Zhou, Bo
Jiang, Junchang
Deng, Aomeng
Li, Qiuyue
Hussain, Tanveer
Zhang, Yiqiong
Liu, Hanwen
Wang, Shuangyin
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Publication Date |
2024
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Abstract |
<p>The electrochemical coupling of biomass oxidation and nitrogen conversion presents a potential strategy for high value-added chemicals and nitrogen cycling. Herein, in this work, CuO/Co<sub>3</sub>O<sub>4</sub> with heterogeneous interface is successfully constructed as a bifunctional catalyst for the electrooxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and the electroreduction of nitrate to ammonia (NH<sub>3</sub>). The open-circuit potential spontaneous experiment shows that more 5-hydroxymethylfurfural molecules are adsorbed in the Helmholtz layer of the CuO/Co<sub>3</sub>O</sub>4</sub> composite, which certifies that the CuO/Co<sub>3</sub>O<sub>4</sub> heterostructure is conducive to the kinetic adsorption of 5-hydroxymethylfurfural. In situ electrochemical impedance spectroscopy further shows that CuO/Co<sub>3</sub>O<sub>4</sub> has faster reaction kinetics and lower reaction potential in oxygen evolution reaction and 5-hydroxymethylfurfural electrocatalytic oxidation. Moreover, CuO/Co<sub>3</sub>O<sub>4</sub> also has a good reduction effect on NO<sub>3</sub> . The ex-situ Raman spectroscopy shows that under the reduction potential, the metal oxide is reduced, and the generated Cu<sub>2</sub>O can be used as a new active site for the reaction to promote the electrocatalytic conversion of NO<sub>3</sub> to NH<sub>3</sub> synthesis. This work provides valuable guidance for the synthesis of value-added chemicals by 5-hydroxymethylfurfural electrocatalytic oxidation coupled with NO<sub>3</sub> while efficiently producing NH<sub>3</sub>.</p>
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Citation |
Energy & Environmental Materials
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Link | |
Publisher |
Wiley-Blackwell Publishing Ltd
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Rights |
Attribution 4.0 International
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Title |
CuO/Co3O4 Bifunctional Catalysts for Electrocatalytic 5‐Hydroxymethylfurfural Oxidation Coupled Cathodic Ammonia Production
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Type of document |
Journal Article
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Entity Type |
Publication
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