Eutectic Syntheses of Graphitic Carbon with High Pyrazinic Nitrogen Content

Abstract

Mixtures of phenols/ketones and urea show eutectic behavior upon gentle heating. These mixtures possess liquid-crystalline-like phases that can be processed. The architecture of phenol/ketone acts as structure-donating motif, while urea serves as melting-point reduction agent. Condensation at elevated temperatures results in nitrogen-containing carbons with remarkably high nitrogen content of mainly pyrazinic nature.

Domino games: Controlling structure and patterns of carbon nanomaterials in 2D & 3D

“…Also on the nanoscale, SEM and TEM revealed the preservation of alignment and the inverted replication of this carbon with silica indeed results in highly chiral silica confirming the successful synthesis of chiral carbons. Also along the scheme of liquid crystalline phases, however, now only constituted of organic compounds, we recently reported the synthesis of highly nitrogen-containing carbon materials starting from structured deep eutectic mixtures [39]. It was shown that first different phenols/ketones and urea form eutectic mixtures with inherent ordering in form of liquid crystals as can be seen, besides others, from optical microscopy images (Fig.…”

Tuning the Intrinsic Properties of Carbon Nitride for High Quantum Yield Photocatalytic Hydrogen Production

“…Varying the C/N ratio, two eminent derivatives of carbon nitride, namely, C 2 N28 and C 3 N29 have been reported, which might also possibly be used as a photocatalyst. The C 2 N contains many irregular holes in its crystalline structure while C 3 N consists of a hole‐free 2D honeycomb lattice.…”

“…Copyright 2016, Elsevier. e) Reproduced with permission 28. Copyright 2015, Nature Publishing Group.…”

Small is Beautiful: Challenges and Perspectives of Nano/Meso/Microscience

“…Here, I want to point from my own work to the improvement of photocatalytic performance in a polymer semiconductor brought by 2D monomer pre-organization [ 39 ] or to the synthesis of a novel type of carbon nitride polymer, C 2 N, again by supramolecular monomer pre-organization. [ 40 ] Such controlled functionality patterns are important not only for the recognition of building blocks, but also for a new type of surface recognition. Let us assume that, in a simple model, black and white denote two states of a surface whereby black/black or white/white is bonding and black/white is antibonding (e.g., hydrophilic and hydrophobic spots of a surface, or positive and negatively charged patches; see Figure 2 ).…”