Electrochemical Reduction of Carbon Dioxide to Ethanol:A Review

摘要

Converting CO2 to renewable fuels via clean and cost-effective chemical processes is very desirable for the sustainable development of green civilization. The electrochemical CO2 reduction(ECO2R)to ethanol using renewable energy is a green and effective strategy for addressing global warming and energy shortage issues. But, simultaneous generation of multiple gaseous & liquid products and low catalytic activities are limiting the technology‘s practical use in the short term. In this study, recent scientific developments in ECO2R for selective production of ethanol are reviewed which include both theoretical and experimental aspects. The reported electrocatalysts are categorized into different groups and the performance of these electro-catalysts/electrodes is summarized. The effect of electro-catalysts'composition & its morphology, applied potential, type of electrolyte, metal loading, reactor configuration, etc. are comprehensively summarized. Furthermore, the present status & challenges and future prospects are presented to help in future design and planning of highperformance electro-catalysts for ethanol.