Figure 3 (IMAGE)

Advanced Institute for Materials Research (AIMR), Tohoku University

Figure 3

Caption

pH-dependent microkinetic CO2RR volcano models at the RHE scale and rate-determining analysis of C60-based catalysts. (a) Activity volcano for overall CO2RR turnover frequency (TOF) of C60-based catalysts at -1.1 VRHE. (b) Activity kinetic volcano for HER competition of C60-based catalysts. (c) Rate-determining step (RDS) analysis of CO2RR activity in neutral media (pH = 7.6) and (d) alkaline media (pH = 14). The vertical gray line marks the COOH* adsorption energy corresponding to the volcano summit. The pink, blue, and orange lines represent domains where CO2-to-COOH*, COOH*-to-CO*, and CO* desorption, respectively, serve as the rate-limiting steps. 

Credit

©Si-Wei Ying et al.

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