Efficient electroreduction of CO2 to C2-C3 products on Cu/Cu2O@N-doped graphene
| Autor: | Si-Li Shan, Cheng-Jie Jiang, Jia-Xing Lu, Yu-Ting Liu, Huan Wang, Wen-Ya Zhi |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Ethylene Graphene Process Chemistry and Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst Electrochemistry 01 natural sciences 0104 chemical sciences Catalysis law.invention chemistry.chemical_compound chemistry Chemical engineering law Mass transfer Chemical Engineering (miscellaneous) 0210 nano-technology Waste Management and Disposal Current density Faraday efficiency |
| Zdroj: | Journal of CO2 Utilization. 50:101594 |
| ISSN: | 2212-9820 |
| DOI: | 10.1016/j.jcou.2021.101594 |
| Popis: | CO2 is the main gas that causes the greenhouse effect, so electrochemical reduction of CO2 can be regarded as a solution to alleviate the climate crisis. In this study, a simple metal–organic frameworks (MOFs)-derivatized strategy was adopted to prepare electrocatalyst, where MOF-199 and N-doped graphene (NG), as precursors, were electroreduced to obtain Cu/Cu2O@N-doped graphene (Cu/Cu2O@NG) materials for efficient CO2 electroreduction to produce C2-C3 products (ethylene, ethanol and n-propanol). A series of Cu/Cu2O@NG materials, especially Cu/Cu2O@NG-2 with a Faraday efficiency of 56 % and corresponding current density of 19.0 mA/cm2 for C2-C3 products, showed a considerably better catalytic performance compared with the MOF-199-derived Cu/Cu2O material. This good performance was mainly attributed to the synergistic effect between the evenly dispersed Cu/Cu2O and NG, leading to good CO2 adsorption capacity, rapid mass transfer and abundant active sites. |
| Databáze: | OpenAIRE |
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