| 초록 |
Electrochemical CO2 reduction reaction (CO2RR) is an important CO2 sequestration technique that offers a way of storing energy derived from the renewable sources in the form of chemical fuels. However, low product selectivity towards C2+ products, and poor catalyst stability are major challenges that must be addressed before practical application of CO2RR. Here we report synthesis a hybrid consisting of bimetallic Zn-Cu immobilized on CNT/poly (ionic liquid) (PIL) composite as a catalyst for CO2RR. CO2-philic PIL not only improved the CO2RR activity by modulating the local CO2 concentration around catalytically active metal centers but also supressed the competing hydrogen evolution reaction due to hydrophobic nature of its anions. Moreover, CNT in the composite boosted the electrical conductivity of the hybrid. The synergistic effect of these phenomenon culminated in efficient CO2RR performance of the composite which surpassed the activity of individual components of the composite. |
