Fig. 1: Synthesis of carbon nitride supports for Pt single atoms.
From: Tracking life and death of carbon nitride supports in platinum-catalyzed vinyl chloride synthesis

a Scheme of synthesis approach and resulting structures of distinct carbon nitride supports for Pt SACs. These include graphitic carbon nitride (CN), partially-polymerized carbon nitride (ppCN), linear melem oligomers (LMO), and their exfoliated counterparts, indicated with ‘E’. Three N-atom types are present: pyridinic N-atoms (N2C), graphitic N-atoms (N3C), and graphitic N-atoms linking three heptazine units (N3C,link). Monomeric units are indicated with parentheses, while vacancies forming upon exfoliation are marked with dotted circles. Color code: blue N, gray C, white H. b HAADF-STEM images of selected carbon nitride-supported Pt SACs.