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Cascade Formamide Electrosynthesis from Air and Flue Gas
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DOI：10.1021/acssuschemeng.6c03781.png)
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Abstract
En 中文
Electrocatalytic C–N coupling offers an appealing approach for sustainable formamide synthesis, yet it suffers from unsatisfactory activity and selectivity. Herein, we propose a cascade strategy for efficient formamide electrosynthesis from plasma-derived NOx– and flue-gas-derived HCOOH, which involves plasma-assisted air-to-NOx– conversion, electrocatalytic reduction of flue gas to HCOOH, and electrocatalytic coreduction of plasma-derived NOx– and flue-gas-derived HCOOH to formamide. Impressively, by integrating cathodic formamide electrosynthesis with anodic hydroxymethylfurfural oxidation, we realize an outstanding formamide yield rate of 86.9 mmol g–1 h–1 and a Faradaic efficiency of 63.5%. A technoeconomic analysis further reveals the promising potential of our cascade strategy for green and energy-efficient formamide production at an industrial scale.
Keywords:
Catalysts
Electrosynthesis
Environmental pollution
Inorganic carbon compounds
Oxides
formamide electrosynthesis
electrocatalytic C−N coupling
atomically dispersed catalysts
HMF oxidation
cascade strategy
Journal
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554
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