Stability of Carbon Nitride Materials at High Pressure and Temperature

Stevens, Andrew; Koga, Toru; Agee, C. B.; Aziz, Michael J.; Lieber, Charles M.

doi:10.1021/ja9625182

Cited by 49 publications

(29 citation statements)

References 31 publications

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“…At 600 C, as shown in Fig. 1c and Table S1, the obtained sample is amorphous thick carbon sheets containing iron (40.26 wt%) and nitrogen (19.53 wt%), which is the graphite-like carbon nitride from melamine decomposition [17].…”

Section: Structure Characterization and Growth Mechanismmentioning

confidence: 92%

Nitrogen doped carbon nanotubes with encapsulated ferric carbide as excellent electrocatalyst for oxygen reduction reaction in acid and alkaline media

Zhong

Wang

et al. 2015

Journal of Power Sources

121

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Section: Structure Characterization and Growth Mechanismmentioning

confidence: 92%

Nitrogen doped carbon nanotubes with encapsulated ferric carbide as excellent electrocatalyst for oxygen reduction reaction in acid and alkaline media

Zhong

Wang

et al. 2015

Journal of Power Sources

121

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“…Similar to the graphite‐to‐diamond phase transition, early attempts to synthesize CCNs adopted an HT‐HP route. Stevens and co‐workers reported the HT‐HP synthesis of β‐C 3 N 4 with paracyanogen as the precursor, using piston cylinder and multi‐anvil presses . The applied pressure was up to 20 GPa, and the temperature was up to 2000 °C.…”

Section: Synthesis Characterization and Application Of Ccns In Watementioning

confidence: 99%

Crystalline Carbon Nitride Semiconductors for Photocatalytic Water Splitting

2019

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Conjugated carbon nitride (CN) is an emerging and promising semiconductor photocatalyst for water photolysis owing to its unique properties. However, the traditional thermally induced polymerization of N‐containing precursors typically produces melon‐based CN solids with amorphous or semi‐crystalline structures with only moderate photocatalytic performance. Many strategies have been developed to prepare crystalline CNs (CCNs), such as high‐temperature and high‐pressure routes, ionothermal synthesis, and microwave‐assisted synthesis. In this Minireview, we summarize the progress that has been made in the synthesis of CCNs and their application in photocatalytic water splitting reactions. Three kinds of CCNs are mainly discussed according to their polymeric subunits. Challenges associated with CCNs and their future development are also included.

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“…[5] Thermal treatment may lead to a significant reduction in nitrogen content. This transforms the material into nitrogen-doped graphitic carbon, [13] which is also an attractive material because doping the graphenic p framework with nitrogen atoms significantly contributes to its conductivity. [14] Although our mesoporous carbon nitride exhibits high nitrogen content, high thermal stability, and excellent textural parameters, the wall structure is amorphous, which makes the material less conductive.…”

Section: Introductionmentioning

confidence: 99%

Highly Crystalline and Conductive Nitrogen‐Doped Mesoporous Carbon with Graphitic Walls and Its Electrochemical Performance

Datta

Balasubramanian

Ariga

et al. 2011

Chemistry A European J

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We present a rational and simple methodology to fabricate highly conductive nitrogen-doped ordered mesoporous carbon with a graphitic wall structure by the simple adjustment of the carbonization temperature of mesoporous carbon nitride without the addition of any external nitrogen sources. By simply controlling the heat-treatment temperature, the structural order and intrinsic properties such as surface area, conductivity, and pore volume, and the nitrogen content of ordered graphitic mesoporous carbon can be controlled. Among the materials studied, the sample heat-treated at 1000 °C shows the highest conductivity, which is 32 times higher than that for the samples treated at 800 °C and retains the well-ordered mesoporous structure of the parent mesoporous carbon nitride and a reasonable amount of nitrogen in the graphitic framework. Since these materials exhibit high conductivity with the nitrogen atoms in the graphitic framework, we further demonstrate their use as a support for nanoparticle fabrication without the addition of any external stabilizing or size-controlling agent, as well as the anode electrode catalysts. Highly dispersed platinum nanoparticles with a size similar to that of the pore diameter of the support can be fabricated since the nitrogen atoms and the well-ordered porous structure in the mesoporous graphitic carbon framework act as a stabilizing and size-controlling agent, respectively. Furthermore the Pt-loaded, nitrogen-doped mesoporous graphitic carbon sample with a high conductivity shows much higher anodic electrocatalytic activity than the other materials used in the study.

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Stability of Carbon Nitride Materials at High Pressure and Temperature

Cited by 49 publications

References 31 publications

Nitrogen doped carbon nanotubes with encapsulated ferric carbide as excellent electrocatalyst for oxygen reduction reaction in acid and alkaline media

Nitrogen doped carbon nanotubes with encapsulated ferric carbide as excellent electrocatalyst for oxygen reduction reaction in acid and alkaline media

Crystalline Carbon Nitride Semiconductors for Photocatalytic Water Splitting

Highly Crystalline and Conductive Nitrogen‐Doped Mesoporous Carbon with Graphitic Walls and Its Electrochemical Performance

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