fig1
From: Single-atom catalysts for (photo)electrocatalytic biomass valorization to high-value-added chemicals
Figure 1. (A) OCP curves of Ir-Co3O4 and Co3O4. TPD spectra of Ir-Co3O4 and Co3O4 at HMF/He (B), ethylene (C), and CO (E) atmospheres. (D) The adsorption model of HMF molecules on Ir-Co3O4. (F) The electrocatalytic performance of Ir-Co3O4. Copyright 2021, Wiley[62].