| 초록 |
Electrochemical reduction of CO2 and H2 evolution were attempted on a 3-D porous metal organic framework (MOF-74) where different transition metals (Co, Ni, and Zn) were impregnated. A customized proton exchange membrane-based electrolyzer was fabricated and used for the electrolysis of CO2 and H2O. In-situ gas chromatography analysis helped measuring the amount of produced CO and H2. A Comprehensive calculation, based on electrochemical measurements and GC analysis, presented a time-dependent selectivity of the produced gases. M-MOF-74 samples with different central metals were successfully obtained because of the facile synthetic process. It was revealed that Co- and Ni-MOF-74 selectively produce H2, while Zn-MOF-74 successfully generates a mixture of CO and H2. The results indicated that M-MOF-74 can be used as an electrocatalyst to selectively convert CO2 into useful chemicals. |
