Tuning the C/N Ratio of C-Rich Graphitic Carbon Nitride (g-C N ) Materials by the Melamine/Carboxylic Acid Adduct Route.

C-rich graphitic carbonitride materials (CN ) with a large range of compositions have been prepared thanks to the self-assembly, in different ratios, of melamine (M) and a panel of polycarboxylic acids (A) such as oxalic, tartaric and citric acid. The thermal conversion of the formed adducts (MA ), led to CN phases, with x ranging from 0.66 to 1.