Fig. 1
Preparation and structure characterization of the Pt nanoparticle distribution. a Schematic illustration of the acid–base-mediated alcohol reduction method for manipulation of the size of Pt NPs. TEM and corresponding HR-TEM images of b, f, j 1.8PHTSO, c, g, k 3.4PHTSO, d, h, l 4.3PHTSO, and e, i, m 7.0PHTSO; the red squares indicate the stepwise magnifications of the local sites. HR-TEM images of n 1.8 nm Pt/C3N4; o 3.4 nm Pt/C3N4; p 4.3 nm Pt/C3N4; and q 7.0 nm Pt/C3N4. The scale bars are 50 nm in b–e; 10 nm in f; 20 nm in g–i; n–q; and 2 nm in j–m
