Figure 1 (IMAGE)

Advanced Institute for Materials Research (AIMR), Tohoku University

Figure 1

Caption

(a) Faradaic efficiency (FE) of electrochemical CO2RR to CO over Cu/SiO2 and C60-Cu/SiO2 catalysts. (b) Stability comparison of CO2RR over Cu/SiO2 and C60-Cu/SiO2 catalysts at -1.1 V/RHE. (c) Distinct reduction pathways for COOH* and OCHO* intermediates. (d) Changes of active sites from Cu surface to C60 molecule for the key COOH* adsorbate. (e) Relative energy differences between Cu and C60 active sites in the absence of an electric field. Gibbs free energy change of COOH* and OCHO* under an applied electric field at (f) Cu sites and (g) C60 sites. (h) Charge density difference of COOH* on C60, with blue and green isosurfaces representing electron accumulation and depletion, respectively. Atom colors: Brown (Cu), gray (C), red (O), and pink (H). 

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©Si-Wei Ying et al.

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