Journal
SCIENCE CHINA-CHEMISTRY
Volume 66, Issue 4, Pages 1011-1031Publisher
SCIENCE PRESS
DOI: 10.1007/s11426-022-1511-2
Keywords
biomass utilization; electrochemical hydrogenation; reductive amination; catalyst; in-situ spectroscopy; mechanism
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Replacing conventional fossil resources with renewable raw materials is crucial for achieving carbon neutrality and alleviating the energy crisis. Biomass, due to its natural abundance and ability to fix CO2, is considered a promising candidate for this purpose. Electrochemical conversion of biomass offers advantages such as operating at ambient conditions, scalability, and green generation of equivalents. This review discusses recent progress in electrochemical transformation of biomass, including catalysts, strategies for enhancing efficiency, and mechanistic understanding.
Replacing conventional fossil resources with renewable raw materials for chemical production and energy generation is crucial for achieving the carbon-neutral goal and alleviating the emerging energy crisis. Biomass has been considered as one of the most promising candidates for this purpose owing to its great natural abundance and inherent ability to fix CO2 in the form of multi-carbon compounds. Particularly, biomass conversion through an electrochemical route is intriguing because of its operability near ambient conditions, flexible scalability (suitable for distributed manufacturing and even domestic use) and green generation of oxidative or reductive equivalents instead of wasteful and possibly explosive or flammable reagents. Herein, recent progress in electrochemical transformation of biomass, including hydrogenation and amination, is reviewed with the emphasis on catalysts and strategies for enhancing catalytic efficiency. The advances in mechanistic understanding using in-situ spectroscopy are also briefly discussed. Finally, recommendations for the directions for future development are also provided.
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