fig11

Figure 11. (A) Experimental and simulated XRD patterns of (NiCdCuFeCo)S_x; (B) HAADF-STEM mapping image of (NiCdCuFeCo)S_x; (C) Overall atomic percentage of metals in (NiCdCuFeCo)S_x as determined through ICP-OES; (D) Amount of CO produced by distinct sulfide-based catalysts; (E) Effect of ion concentration, humic acid concentration and pH on the yield and selectivity of cellulose conversion to CO; (F) The recommended reaction mechanism for the conversion of cellulose to CO via the (NiCdCuFeCo)S_x/PDS system. Reproduced with permission^[38]. Copyright 2024, Elsevier; (G) Amounts of CO, C₂H₄ and C₂H₆ produced over distinct sulfide-based catalysts; (H) CO generation rates in the presence of H₂O₂, CH₃COOOH, Na₂SO₅ and Na₂S₂O₈, respectively; (I) Reaction mechanism for the conversion of guar gum in the (CdZnCuCoFe)S_x/PDS system; (J) Reaction mechanism of (CdZnCuCoFe)S_x nanosheets for the conversion of biomass for efficient CO generation. Reproduced with approval^[90]. Copyright 2023, Royal Society of Chemistry. XRD: X-ray diffraction; HAADF-STEM: high-angle annular dark-field scanning transmission electron microscopy; ICP-OES: inductively coupled plasma optical emission spectroscopy; PDS: peroxydisulfate.