Facile Synthesis of M-MOF-74 (M=Co, Ni, Zn) and its Applica- tion as an ElectroCatalyst for Electrochemical CO2 Conversion and H2 Production
- Facile Synthesis of M-MOF-74 (M=Co, Ni, Zn) and its Applica- tion as an ElectroCatalyst for Electrochemical CO2 Conversion and H2 Production
- 김형준; 장종현; 유성종; 김진영; 최인수; Yoo Eil Jung; 이창연
- Issue Date
- Journal of electrochemical science and technology
- VOL 8, NO 1-68
- Electrochemical conversion of CO2 and production of H-2 were attempted on a three-dimensionally ordered, porous metal organic framework (MOF-74) in which transition metals (Co, Ni, and Zn) were impregnated. A lab-scale proton exchange membrane-based electrolyzer was fabricated and used for the reduction of CO2. Real-time gas chromatography enabled the instantaneous measurement of the amount of carbon monoxide and hydrogen produced. Comprehensive calculations, based on electrochemical measurements and gaseous product analysis, presented a time-dependent selectivity of the produced gases. M-MOF-74 samples with different central metals were successfully obtained because of the simple synthetic process. It was revealed that Co- and Ni-MOF-74 selectively produce hydrogen gas, while Zn-MOF-74 successfully generates a mixture of carbon monoxide and hydrogen. The results indicated that M-MOF-74 can be used as an electrocatalyst to selectively convert CO2 into useful chemicals.
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