Graphitic carbon nitride (g-C₃N₄) as a metal-free catalyst for thermal decomposition of ammonium perchlorate

Abstract

g-C3N4 possesses a band gap of approximately 2.7 eV. The conduction-band electrons (ecb−) and valence band holes (h+) could be generated when g-C3N4 was excited, which accelerate the thermal decomposition of ammonium perchlorate (AP).

Highly Efficient g‐C3N4 Nanorods with Dual Active Sites as an Electrocatalyst for the Oxygen Evolution Reaction

“…[22] Furthermore, Broad peaks between 3000 cm À 1 and 3500 cm À 1 are ascribed to the NÀ H stretching, indicating the presence of NH and/or NH 2 groups. [23] The surface functional groups of g-C 3 N 4 are maintained in g-C 3 N 4 nanorods with the introduction of oxygen functional groups as evidenced by the appearance of a new peak at 1780 cm À 1 which is assigned to the stretching and bending vibrations of carbonyl and carboxyl groups, this is in agreement with the new additional peaks observed in the XRD (Figure 1a).…”

“…In Figure b, the peak at 807 cm −1 is attributed to the characteristic breathing mode of triazine units while the peaks between 1200 cm −1 and 1650 cm −1 (1635, 1534, 1406, 1318 and 1238) are assigned to typical stretching modes of CN heterocycles . Furthermore, Broad peaks between 3000 cm −1 and 3500 cm −1 are ascribed to the N−H stretching, indicating the presence of NH and/or NH 2 groups . The surface functional groups of g‐C 3 N 4 are maintained in g‐C 3 N 4 nanorods with the introduction of oxygen functional groups as evidenced by the appearance of a new peak at 1780 cm −1 which is assigned to the stretching and bending vibrations of carbonyl and carboxyl groups, this is in agreement with the new additional peaks observed in the XRD (Figure a).…”

Synthesis of g-C 3 N 4 /CeO 2 nanocomposites with improved catalytic activity on the thermal decomposition of ammonium perchlorate

“…Moreover, as a novel metal-free and environmentally friendly catalyst, g-C 3 N 4 was also demonstrated to have the capacity to accelerate the thermal decomposition process [25]. However, to best of our knoledge, there are rare investigations regarding the catalytic activity evaluation of the nanocomposites prepared by the combination of g-C 3 N 4 and CeO 2 with the help of determining their catalysis on thermal decomposition of AP.…”

Nitrogen‐Doped Graphitic Porous Carbon Nanosheets Derived from In Situ Formed g‐C3N4 Templates for the Oxygen Reduction Reaction

“…Inspired by the reported templating methods and the selective breaking of the hydrogen bonds of layered g‐C 3 N 4 , we sought to determine an efficient method for the large‐scale preparation of oxygen‐containing N‐doped carbon (ONC) nanosheets by means of pyrolysis of a mixture that contained dicyandiamide (DCDA) and glucose. In this scenario, the compound DCDA can act as the nitrogen‐rich precursor of sheetlike g‐C 3 N 4 , whereas glucose provides the carbon source . The in situ formed g‐C 3 N 4 sheets can then be used further as a sacrificial template or as modifiers through copolymerization with polysaccharide .…”

“…In this scenario, the compound DCDA can act as the nitrogen-rich precursor of sheetlike g-C 3 N 4 ,w hereas glucosep rovides the carbon source. [17] The in situ formed g-C 3 N 4 sheetsc an then be used furthera s as acrificial template or as modifierst hrough copolymerization with polysaccharide. [13a, 18] In addition, internal hydrogen bonds in the layered g-C 3 N 4 can be selectively broken at pre-carbonization temperatures from 520 to 600 8C, which enhances the surfacec ontact of g-C 3 N 4 with ap olysaccharide.…”