fig7

Figure 7. (A) The crystal orbital Hamilton population of the interaction between the Ir atoms of different heights and the Ti atoms on the surface of the Ir_n-TiC. (B) The electron localization function of the Ir₁-TiC. (C) The charge density difference of the Ir₁-TiC. (D) Synthesis schematic of Mo SAs on a 1T-CrS₂ nanoflake by L-MBE. Reproduced with permission from Ref.^[105], © WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 2022. (E) Schematic of electric field distribution of Mo SAs@1T-CrS₂ nanoflake. (F) The calculated free-energy diagram of HER at the equilibrium potential for Mo SAs@1T-CrS₂, 1T-CrS₂ and Pt. Reproduced with permission from Ref.^[106], © Elsevier Ltd. 2021.