Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 59, Issue 27, Pages 10807-10813Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202000657
Keywords
bismuth oxides; CO2 reduction; electrocatalysts; formate; metal-organic frameworks
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Funding
- Fundamental Research Funds for the Central Universities [2018KFYXKJC044, 2018KFYYXJJ121, 2017KFXKJC002, 2017KFYXJJ164]
- National 1000 Young Talents Program of China
- WNLO of HUST
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Carbon dioxide (CO2) conversion is promising in alleviating the excessive CO2 level and simultaneously producing valuables. This work reports the preparation of carbon nanorods encapsulated bismuth oxides for the efficient CO2 electroconversion toward formate production. This resultant catalyst exhibits a small onset potential of -0.28 V vs. RHE and partial current density of over 200 mA cm(-2) with a stable and high Faradaic efficiency of 93 % for formate generation in a flow cell configuration. Electrochemical results demonstrate the synergistic effect in the Bi2O3@C promotes the rapid and selective CO2 reduction in which the Bi2O3 is beneficial for improving the reaction kinetics and formate selectivity, while the carbon matrix would be helpful for enhancing the activity and current density of formate production. This work provides effective bismuth-based MOF derivatives for efficient formate production and offers insights in promoting practical CO2 conversion technology.
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