Figure 3 (IMAGE)

Advanced Institute for Materials Research (AIMR), Tohoku University

Figure 3

Caption

a) Differential charge density difference of Ru/VO2-CNFs and Ru-CNFs, where yellow and blue regions indicate charge accumulation and depletion, respectively. (b) Gibbs free energy diagram for the alkaline HER process with the corresponding TS shown in the inset. (c) H* structures at different sites during hydrogen spillover progress. (d) Energy barrier for the hydrogen spillover process. (e) PDOS of OH-H state for Ru/VO2-CNFs. (f) PDOS of OH+H state for Ru/VO2-CNFs. (g) Plots of hydrogen desorption peak positions versus scan rates for Ru/VO2-CNFs, Ru-CNFs, Pt/C, and Ru/C. (h) 2D microkinetic volcano of HER as a function of (ΔGH∗, ΔGOH∗), simulated under alkaline conditions.

Credit

Hao Li et al.

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