fig6

Figure 6. Interfacial designing for anode substrates. Reprinted with permission from^[99], Copyright 2022, The American Association for the Advancement of Science. (A) Schematic illustrating the electrospray process used to manufacture textured graphene coatings, enabling reversible zinc electrodeposition. (B) X-ray diffraction (XRD) pattern of graphene coatings prepared via the standard doctor-blade (DG) method and the electrospray (EG) methodology. Inset: magnification of the (101) and (004) planes, highlighting the selectivity for crystallinity achieved by electrospray coatings. (C) Raman spectrum for graphene coatings fabricated by the doctor-blade and electrospray methods. Inset: D/G band intensity ratio. (D) Current density-potential curves illustrating variations in the HER current for blank carbon (CF), DG@CF, and EG@CF substrates. (E) XRD analysis of zinc deposits after cycling on blank CF and EG@CF. (F) CE of blank CF, DG@CF, and EG@CF. (G) Zinc deposition morphology on blank CF and EG@CF after 10 cycles at 40 mA cm^-2, 20 mAh cm^-2. a. u.: arbitrary units.