Metal–organic framework-mediated strategy for enhanced methane production on copper nanoparticles in electrochemical CO2 reduction. (20th May 2019)

• Record Type: Journal Article
• Authors: Kim, Mun Kyoung; Kim, Hyeok Joo; Lim, Hyungseob; Kwon, Youngkook; Jeong, Hyung Mo
• Is Part Of: Electrochimica acta. Volume 306(2019)
• Page Start: 28
• Page End: 34
• Publication Date: 2019-05-20
• Subjects: Copper nanoparticles -- Copper-based MOFs -- Electrocatalysts -- CO2 reduction -- Hydrocarbon production; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2019.03.101
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: Conversion of carbon dioxide (CO2 ) to useful chemicals is considered a potential solution to resolve the climate threat. In this study, a facile metal-organic framework (MOF)-mediated strategy to obtain an efficient electrocatalyst for the synthesis of methane (CH4 ) is suggested. Cu-based MOF-74 was chosen as the precursor, which was electrochemically reduced to obtain Cu nanoparticles (NPs). The porous structure of the MOF serves as a template for the synthesis of isolated Cu NP clusters with high catalytic activities and high efficiencies for the CH4 production in the electrochemical CO2 reduction reaction. The MOF-derived Cu NPs demonstrate high Faradaic efficiency (>50%) for the CH4 production with suppressed C2 production, and 2.3-fold higher methanation activity at −1.3 V (vs. RHE) compared to the commercial Cu NPs.