Journal
GREEN CHEMISTRY
Volume 23, Issue 6, Pages 2525-2530Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0gc04157b
Keywords
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Funding
- National Natural Science Foundation of China [21972016, 21773023, 21701153]
- Sichuan Science and Technology Program [2020YJ0243]
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By utilizing cobalt oxyhydroxide (CoOOH) nanosheets as the anodic electrocatalyst in a hybrid water electrolyzer with 5-hydroxymethylfurfural, a high value product of 2,5-furandicarboxylic acid can be produced on the anode with high conversion, selectivity, and Faraday efficiency at a low operating voltage of approximately 1.423 V.
Electrocatalytic water splitting is a promising route for green hydrogen production. However, the anodic reaction of oxygen evolution has a high overpotential and low value products are obtained. Therefore, the exploration of decoupling hydrogen evolution and oxygen evolution and coupling with a value-added anodic reaction has received tremendous attention. Herein, we employ an in situ electrochemical anion-oxidation strategy to synthesize cobalt oxyhydroxide (CoOOH) nanosheets from cobalt carbonate hydroxide nanoarrays. With the use of CoOOH nanosheets as the anodic electrocatalyst in a hybrid water electrolyzer with 5-hydroxymethylfurfural, a high value product of 2,5-furandicarboxylic acid can be produced on the anode with similar to 100% conversion, similar to 100% selectivity and similar to 100% Faraday efficiency at an operating voltage as low as 1.423 V.
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