Figure 8.

(A) X-ray diffraction (XRD) patterns of the MoO₃/g-C₃N₄ intermediate and ultrathin P-MoS₂ nanosheets and TEM and high resolution-TEM images of ultrathin P-MoS₂ nanosheets. (B) ORR electrocatalysis for P-MoS₂-0.1, P-MoS₂-0.2, P-MoS₂-0.3, MoS₂, and 20% Pt/C catalysts. Reproduced with permission from [46] Copyright © 2021 The Royal Society of Chemistry. (C) Top view of the optimized structure of (a) pristine MoS₂ nanosheets, (b) single P-doped MoS₂ nanosheets, and (c) double P-doped MoS₂ nanosheets. (D) Top and side views of the optimized adsorption configurations of (a) O₂-adsorbed P-MoS₂, (b) 2O-adsorbed P-MoS₂, and (c) 2O-adsorbed 2P-MoS₂. The Hirshfeld charge values of the corresponding atoms are also given. (E) Optimized structure configuration of reactant, intermediates, and product (1–4) and the corresponding reaction pathways of the ORR on a 2P-MoS₂ sheet in an alkaline environment. Reproduced with permission from [88] Copyright © 2021 American Association for the Advancement of Science.