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Journal articles on the topic 'Carbon Nitride'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ryabov, A. V. "Medium-Carbon Free-Cutting Steel." Materials Science Forum 946 (February 2019): 47–52. http://dx.doi.org/10.4028/www.scientific.net/msf.946.47.

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The paper presents theoretical and experimental studies of the formation processes of boron nitride, aluminium nitride, aluminium oxide and manganese sulphide inclusions in a free-cutting steel. Fact Sage software was used to model the behaviour of non-metallic inclusions. Formation temperatures and the amount of key inclusions in steel were calculated. Formation order of inclusions is as follows: aluminium oxide > boron nitride > manganese sulphide > aluminium nitride. The object of study was the A45AR grade steel in 1.1–1.2 kg ingots. It was melted in an induction furnace, and alumi

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2

Jasman, Siti Maryam, Hendrik Oktendy Lintang, Siew Ling Lee, and Leny Yuliati. "Photocatalytic oxidation of nitrite ion over carbon nitride." Malaysian Journal of Fundamental and Applied Sciences 14, no. 1-2 (2018): 174–78. http://dx.doi.org/10.11113/mjfas.v14n1-2.987.

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Nitrite ion (NO2-) is a toxic inorganic contaminant, which is widely used in industry and agriculture as a food preservative and a fertilizing agent. One of the methods to reduce the toxicity of the NO2- is by oxidizing it into less hazardous compounds, such as nitrate ion (NO3-). In this study, we demonstrated that a simple and green photocatalytic process can be employed to oxidize the NO2- to NO3- over a metal free-carbon nitride photocatalyst under ultraviolet (UV) light irradiation. The carbon nitride was synthesized via pyrolysis of urea precursor by a thermal polymerization process at 8

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3

Satbayeva, Zarina, Almasbek Maulit, Nurlybek Ispulov, Daryn Baizhan, Bauyrzhan Rakhadilov, and Rinat Kusainov. "Electrolytic Plasma Nitriding of Medium-Carbon Steel 45 for Performance Enhancement." Crystals 14, no. 10 (2024): 895. http://dx.doi.org/10.3390/cryst14100895.

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This article analyzes the effect of electrolytic plasma nitriding on the performance of medium-carbon steel 45 under increased mechanical loads and in aggressive environments. Nitrided samples in carbamide electrolytes, both with and without the addition of ammonium nitrate, were compared to the initial material. SEM with EDX and XRD analysis was used to examine the microstructure and phase composition of nitrided samples. Wear resistance was studied using the ‘ball-on-disk’ method and Vickers microhardness testing, while corrosion resistance was studied using potentiodynamic polarization curv

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4

Vinu, Ajayan, Srinivasan Anandan, Narasimhan Gokularkrishnan, Pavuluri Srinivasu, Toshiyuki Mori, and Katsuhiko Ariga. "Mesoporous Nitrides through Nano-Hard Templating Techniques." Solid State Phenomena 119 (January 2007): 291–94. http://dx.doi.org/10.4028/www.scientific.net/ssp.119.291.

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Mesoporous carbon nitride materials have been synthesized using SBA-15 by pore filling technique whereas mesoporous boron nitride and boron carbon nitride have been prepared by elemental substitution technique using mesoporous carbon as template. The obtained materials have been unambiguously characterized by sophisticated techniques such as XRD, HRTEM, EELS, XPS, FT-IR and N2 adsorption. The textural parameters of the materials are quite higher as compared to the respective nonporous nitrides. These materials could offer great potential for the applications, such as catalytic supports, gas st

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5

Idris, Azeez O., Ekemena O. Oseghe, Titus A. M. Msagati, Alex T. Kuvarega, Usisipho Feleni, and Bhekie Mamba. "Graphitic Carbon Nitride: A Highly Electroactive Nanomaterial for Environmental and Clinical Sensing." Sensors 20, no. 20 (2020): 5743. http://dx.doi.org/10.3390/s20205743.

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Graphitic carbon nitride (g-C3N4) is a two-dimensional conjugated polymer that has attracted the interest of researchers and industrial communities owing to its outstanding analytical merits such as low-cost synthesis, high stability, unique electronic properties, catalytic ability, high quantum yield, nontoxicity, metal-free, low bandgap energy, and electron-rich properties. Notably, graphitic carbon nitride (g-C3N4) is the most stable allotrope of carbon nitrides. It has been explored in various analytical fields due to its excellent biocompatibility properties, including ease of surface fun

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6

Sung, S. L., S. H. Tsai, X. W. Liu, and H. C. Shih. "A novel form of carbon nitrides: Well-aligned carbon nitride nanotubes and their characterization." Journal of Materials Research 15, no. 2 (2000): 502–10. http://dx.doi.org/10.1557/jmr.2000.0075.

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Well-aligned carbon nitride nanotubes were prepared with a porous alumina membrane as a template when using electron cyclotron resonance (ECR) plasma in a mixture of C2H2 and N2 as the precursor with an applied negative bias to the graphite sample holder. The hollow structure and good alignment of the nanotubes were verified by field-emission scanning electron microscopy. Carbon nitride nanotubes were transparent when viewed by transmission electron microscopy, which showed that the nanotubes were hollow with a diameter of about 250 nm and a length of about 50–80 μm. The amorphous nature of th

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7

Jun, Young-Si, Won Hi Hong, Markus Antonietti, and Arne Thomas. "Mesoporous, 2D Hexagonal Carbon Nitride and Titanium Nitride/Carbon Composites." Advanced Materials 21, no. 42 (2009): 4270–74. http://dx.doi.org/10.1002/adma.200803500.

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8

M, Heravi; Majid, L. Mohammadi, S. Sadjadi, and M. Malmir. "Hybrid of Graphitic Carbon Nitride and Palladated Magnetic Carbon Dot: An Efficient Catalyst for Coupling Reaction." ChemistrySelect 4, no. 45 (2019): 13404–11. https://doi.org/10.1002/slct.201903078.

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To take advantage of the properties of graphitic carbon nitrides and carbon quantum dots, a novel hybrid system was designed based on the synthesis and palladating of magnetic carbon quantum dots followed by hydrothermal treatment with graphitic carbon nitrides. The resulting hybrid, g-C<sub>3</sub>N<sub>4</sub>-Pd/CQDs@Fe, was then utilized as an efficient catalyst for promoting ligand and co-catalyst-free Sonogashira coupling reaction under mild reaction condition in aqueous media. Not only the catalyst could catalyze the reaction of broad range of the substrates, but also it showed good rec

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9

Kuchmiy, Stepan. "Photocatalytic Systems Based on Crystalline Carbon Nitride for Hydrogen Production." Chemistry & Chemical Technology 19, no. 1 (2025): 1–19. https://doi.org/10.23939/chcht19.01.001.

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The current state of research on photocatalytic systems based on crystalline graphitic carbon nitride (CCN) for H2 evolution from aqueous solutions of electron-donating substrates is considered. Methods of CCN synthesis and photocatalytic properties of different samples of CCN-undoped with a controlled defect structure and doped with metals and non-metals are discussed. Possible directions for further research of such CCN-based photocatalytic systems are outlined.

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10

Li Qiang and Liang Er-Jun. "Comparison of field emission of carbon, carbon nitride and boron carbon nitride nanotubes." Acta Physica Sinica 54, no. 12 (2005): 5931. http://dx.doi.org/10.7498/aps.54.5931.

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11

Rounaghi, Seyyed Amin, Danny E. P. Vanpoucke, Hossein Eshghi, et al. "Mechanochemical synthesis of nanostructured metal nitrides, carbonitrides and carbon nitride: a combined theoretical and experimental study." Physical Chemistry Chemical Physics 19, no. 19 (2017): 12414–24. http://dx.doi.org/10.1039/c7cp00998d.

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12

Lydmila, Kamkina, Mishalkin Anatilii, Kamkin Volodimir, Grishchenko Yuorii, and Isaeva Lyudmila. "Reduction of harmful effects of nitrogen on the properties of low-carbon steel 08Y by electing a rational amount of nitride-forming elements." Theory and practice of metallurgy, no. 6 (November 27, 2019): 16–24. http://dx.doi.org/10.34185/tpm.6.2019.03.

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Based on the thermodynamic analysis of nitride formation reactions, the advantage of titanium nitride formation and the lowest probability of boron nitride formation are established. Based on the analysis of experimental data, an analytical expression was established to calculate the required amount of titanium additives to neutralize the harmful effects of nitrogen, which also takes into account the concentration of aluminum in steel and prevents the formation of harmful aluminum nitrides. Necessary and sufficient concentrations of boron in steel are calculated to start the nitride formation

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13

Ji, Jiawei, Tianqing Zhang, Lunhuan Xia, Zikai Chen, Weikai Wang, and Xiaokang Wan. "Design of cobalt nickel nitrides/carbon nitride composite catalysts for enhanced electrochemical water splitting." Journal of Physics: Conference Series 2334, no. 1 (2022): 012011. http://dx.doi.org/10.1088/1742-6596/2334/1/012011.

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Abstract Design of efficient non-noble metal electrocatalysts for oxygen evolution reaction (OER) have been considered as a crucial issue in the development of future renewable energy utilization. In this paper, we report a composite structure of cobalt nickel nitrides and carbon nitrides as efficient OER electrocatalysts. A facile hydrothermal method was utilized to synthesize the precursors, then the samples were treated with melamine and heated in an N2 atmosphere. The successful preparation of the cobalt nitride nickel/carbon nitride composite catalysts was confirmed by SEM, XRD, and the O

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14

Byers, Joshua C., Florence Billon, Catherine Debiemme-Chouvy, Claude Deslouis, Alain Pailleret, and Oleg A. Semenikhin. "Photocurrent Generation in Carbon Nitride and Carbon Nitride/Conjugated Polymer Composites." ACS Applied Materials & Interfaces 4, no. 9 (2012): 4579–87. http://dx.doi.org/10.1021/am3009482.

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15

Hao Yang, Hao Yang, Wenjie Cheng Wenjie Cheng, Mengdi Xu Mengdi Xu, et al. "Preparation of Carboxylated Carbon Nitride for RhB Photocatalytic Degradation." Journal of the chemical society of pakistan 45, no. 5 (2023): 429. http://dx.doi.org/10.52568/001337/jcsp/45.05.2023.

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A simple calcination process was used to create g-C3N4 (CN) from melamine, and the modified g-C3N4 (MCN) was synthesized with hydrochloric acid (HCl), sulfuric acid (H2SO4), and nitric acid (HNO3). After acid modification, CN successfully introduced oxygen-containing functional groups and obtained CN-HNO3 with multiple holes, which improved the photocatalytic efficiency. The bandgap of CN-HNO3 (2.46 eV) is 0.24 eV lower than that of CN (2.70 eV), resulting in more electron holes and improved light absorption of the catalyst. CN-HNO3 has a conduction band (CB) of -1.23 eV, while CN has a CB of

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16

Szuromi, Phil. "Carbon nitride nanotube reactors." Science 372, no. 6541 (2021): 477.6–478. http://dx.doi.org/10.1126/science.372.6541.477-f.

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17

Dante, Roberto C., Pablo Martín-Ramos, Luis M. Navas-Gracia, Francisco M. Sánchez-Arévalo, and Jesús Martín-Gil. "Polymeric Carbon Nitride Nanosheets." Journal of Macromolecular Science, Part B 52, no. 4 (2012): 623–31. http://dx.doi.org/10.1080/00222348.2012.716336.

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18

Zhang, G. Y., X. C. Ma, D. Y. Zhong, and E. G. Wang. "Polymerized carbon nitride nanobells." Journal of Applied Physics 91, no. 11 (2002): 9324–32. http://dx.doi.org/10.1063/1.1476070.

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19

MARTON, D., K. J. BOYD, and J. W. RABALAIS. "SYNTHESIS OF CARBON NITRIDE." International Journal of Modern Physics B 09, no. 27 (1995): 3527–58. http://dx.doi.org/10.1142/s0217979295001385.

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In 1990, Liu and Cohen presented a pseudopotential study of the structural and electronic properties of β- C 3 N 4, a hypothetical compound. The calculated properties of β- C 3 N 4, including bulk modulus and velocity of sound, were found to be comparable to that of diamond suggesting high values for hardness and for thermal conductivity. In this paper, the field of experimental efforts to produce carbon nitride is reviewed. Synthesis of β- C 3 N 4 has been claimed on the basis of diffraction data. However, the overall composition of the materials obtained in these as in most other experiments

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20

Sekine, T., H. Kanda, Y. Bando, M. Yokoyama, and K. Hojou. "A graphitic carbon nitride." Journal of Materials Science Letters 9, no. 12 (1990): 1376–78. http://dx.doi.org/10.1007/bf00721588.

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21

Durandurdu, Murat. "Amorphous carbon nitride (C3N4)." Journal of Non-Crystalline Solids 631 (May 2024): 122916. http://dx.doi.org/10.1016/j.jnoncrysol.2024.122916.

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22

Baowan, D., and J. M. Hill. "Nested boron nitride and carbon-boron nitride nanocones." Micro & Nano Letters 2, no. 2 (2007): 46. http://dx.doi.org/10.1049/mnl:20070041.

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23

GOPALAKRISHNAN, B., and S. V. SUBRAMANYAM. "SYNTHESIS OF CRYSTALLITES OF CARBON NITRIDE IN AMORPHOUS CARBON." International Journal of Modern Physics B 16, no. 06n07 (2002): 1148–53. http://dx.doi.org/10.1142/s0217979202011020.

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We report the successful synthesis of crystalline carbon nitride by chemical vapor deposition of certain nitrogen containing organic precursors. The precursor is heated and the vapors enter the hot deposition zone where they are pyrolysed and deposited in the form of thin films over pretreated substrates. The powder x-ray diffraction analysis shows clear peaks corresponding to the carbon nitride crystals of tetragonal form in addition to a broad hump corresponding to the amorphous nitrogenated carbon. The crystallites size is ~300Å and the volume fraction of the crystallites is about ~7%. The

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24

Xiao, Yawei, Xu Tian, Yunhua Chen, Xuechun Xiao, Ting Chen, and Yude Wang. "Recent Advances in Carbon Nitride-Based S-scheme Photocatalysts for Solar Energy Conversion." Materials 16, no. 10 (2023): 3745. http://dx.doi.org/10.3390/ma16103745.

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Energy shortages are a major challenge to the sustainable development of human society, and photocatalytic solar energy conversion is a potential way to alleviate energy problems. As a two-dimensional organic polymer semiconductor, carbon nitride is considered to be the most promising photocatalyst due to its stable properties, low cost, and suitable band structure. Unfortunately, pristine carbon nitride has low spectral utilization, easy recombination of electron holes, and insufficient hole oxidation ability. The S-scheme strategy has developed in recent years, providing a new perspective fo

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25

V, Kutsova, Kamkin V, Knapinskij M, Projdak S, and Varitsev A. "Pure steel milling technology and specific features." Theory and practice of metallurgy, no. 6 (March 18, 2019): 5–13. http://dx.doi.org/10.34185/tpm.3.2019.01.

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Determine the technological parameters of smelting and out-of-furnace processing of low-carbon steel. Method. The thermodynamics of nitride formation reactions is considered and the advantage of titanium nitride forma- ?ion, the lowest probability of boron nitride formation is established. Based on the analysis of experimental data, an analytical expression was obtained, which allows to calculate the required amount of titanium additives to neutralize the harmful effects of nitrogen, which also takes into account the concentration of aluminum in steel and prevents the formation of harmful alum

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26

Das, Saunak Kumar, Stefan Repp, Sebastian Bette, Manisha Samanta, Lorenzo Tesi, and Bettina Valeska Lotsch. "Tunable Absorption and Photochromism in Polyheptazine Imides Via a Solvent Mediated Synthetic Pathway." ECS Meeting Abstracts MA2024-02, no. 11 (2024): 1465. https://doi.org/10.1149/ma2024-02111465mtgabs.

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Layered, two dimensional metal containing polyheptazine imides (M-PHI) offer a complex playground for structure variation resulting in fascinating optoelectronic properties for several energy conversation and storage applications and beyond.1,2,3 Ionothermal or high temperature synthesis using both bottom-up molecular precursor routes and top-down approaches from melon have been used to synthesize M-PHI.4,5 A pressing problem for M-PHIs and infact for most polymeric carbon nitrides (PCN) is their insufficient visible light absorption arising from their symmetry forbidden n-π* electronic transi

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27

Wang, Hongwei, Guiqing Huang, Zhiwei Chen, and Weibing Li. "Carbon Self-Doped Carbon Nitride Nanosheets with Enhanced Visible-Light Photocatalytic Hydrogen Production." Catalysts 8, no. 9 (2018): 366. http://dx.doi.org/10.3390/catal8090366.

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In this study, we prepared carbon self-doped carbon nitride nanosheets through a glucose synergic co-condensation method. In the carbon self-doped structure, the N atoms in the triazine rings were substituted by C atoms, resulting in enhanced visible-light photocatalytic hydrogen production, which is three-times higher than that of bulk carbon nitride. The enhanced photocatalytic hydrogen production was attributed to the higher charge-carrier transfer rate and widened light absorption range of the carbon nitride nanosheets after carbon self-doping. Thus, this work highlights the importance of

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28

Balázsi, Csaba. "Development of Multifunctional Silicon Nitride Based Nanocomposites." Materials Science Forum 659 (September 2010): 121–26. http://dx.doi.org/10.4028/www.scientific.net/msf.659.121.

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Silicon nitride based composites with 3 wt% different carbon additives (multiwall carbon nanotubes, graphene and carbon black) have been prepared. Optimisation of the manufacturing processes has been conducted to preserve the carbon nanotubes in composites and to avoid damaging during high temperature processing. The results show that carbon additives have a good contact to the surface of silicon nitride grains. It was found that the different carbon additions have significant effect to the electrical, mechanical, tribological and thermophysical properties of silicon nitride based composites i

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29

Sui, Xue Ye, Jie Xu, Han Li, et al. "Preparation of Aluminum Nitride Whiskers." Advanced Materials Research 1058 (November 2014): 7–10. http://dx.doi.org/10.4028/www.scientific.net/amr.1058.7.

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Aluminum nitride whiskers have excellent characteristics, not only can be used in the high heat conductivity for the preparation of a new composite, but also can be used as a reinforcing agent for the preparation of a new composite toughened. Using wet, melamine, and aluminum nitrate as raw material, aluminum nitride whiskers precursor are prepared and pure aluminum nitride whiskers can be obtained by nitrogen and carbon removal processes. This kind of aluminum nitride whiskers possess smooth surface, uniform length, straight whisker, and a long cylindrical structure with a diameter of 4-6 μm

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30

An, Shuyang. "Preparation and Photocatalytic Properties of Graphite-Phase Carbon Nitride Materials." Transactions on Engineering and Technology Research 2 (August 6, 2024): 25–34. http://dx.doi.org/10.62051/g3z38w88.

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As a new semiconductor material, graphite-phase carbon nitride can be effectively used in the utilization of renewable energy and environmental pollution control. Because the preparation of graphite-phase carbon nitride is complicated with different optimization strategies in various industrial fields, the preparation and modification of graphite-phase carbon nitride are summarized in this paper. Combined with the excellent performance of graphite-phase carbon nitride in the band gap, specific surface area and stability, the research status of its modified materials in the photocatalytic hydro

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31

Kosaka, Maito, Noriyuki Urakami, and Yoshio Hashimoto. "Formation of graphitic carbon nitride and boron carbon nitride film on sapphire substrate." Japanese Journal of Applied Physics 57, no. 2S2 (2018): 02CB09. http://dx.doi.org/10.7567/jjap.57.02cb09.

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32

TAN, GUOQIANG, HONGYAN MIAO, MIN DONG, and HUIJUN REN. "EFFECTS OF CARBON SOURCE ON THE TITANIUM NITRIDE POWDER SYNTHESIZED BY CARBON THERMAL REDUCTION." International Journal of Nanoscience 05, no. 04n05 (2006): 571–77. http://dx.doi.org/10.1142/s0219581x06004814.

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Glucose, carbamide and petroleum coke as carbon sources are separately added to butyl titanate and ethanol system. The initial powder containing titanium source and carbon source is prepared by sol–gel method. IR analysis of the initial powder shows that: glucose-butyl titanate system and carbamide-butyl titanate system form water-soluble compounds. After being dried, they form Ti 2 O 3 and C mixed powder. Petroleum coke-butyl titanate system forms TiO 2 powder with nanometer size in carbon. Regarding initial powder as a raw material, titanium nitride powder is prepared by carbon thermal reduc

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33

Yuliati, Leny, Mohd Hayrie Mohd Hatta, Siew Ling Lee, and Hendrik Oktendy Lintang. "Optimized Synthesis Temperature and Time to Obtain Crystalline Carbon Nitride with Enhanced Photocatalytic Activity for Phenol Degradation." Indonesian Journal of Chemistry 20, no. 6 (2020): 1392. http://dx.doi.org/10.22146/ijc.52345.

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In this work, the crystalline carbon nitride photocatalysts were synthesized by an ionothermal technique with varied synthesis temperature of 500, 550, and 600 °C, and synthesis time of 2, 4, and 6 h. Fourier transform infrared spectra showed the successful formation of the prepared carbon nitrides from their characteristic vibration peaks. X-ray diffraction patterns suggested that the same phase of poly(triazine imide) and heptazine could be observed, but with different crystallinity. The optical properties showed that different temperatures and synthesis time resulted in the different band g

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34

Su, Yan Liang, Sun Hui Yao, Yi Ru Wu, and Cheng Yeh Lin. "Effect of Flow Rate of Reactive Gas on Mechanical and Tribological Properties of Carbon Nitride Coatings." Applied Mechanics and Materials 883 (July 2018): 48–52. http://dx.doi.org/10.4028/www.scientific.net/amm.883.48.

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This study discusses the mechanical and tribological properties of a series of carbon nitride coatings deposited by unbalanced DC magnetron sputtering using nitrogen-argon mixture gas and graphite targets. The carbon nitride coatings were with varying carbon/nitrogen ratio by varying the gas flow rate ratio of nitrogen gas/argon while kept the overall gas flow rate at constant. The carbon nitride coatings with C/N ratios from 2.01 to 3.27 were obtained. The coatings were characterized and studied by nanohardness, scratching, and wear testers. It was found that the carbon nitride coatings with

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35

Kreider, K. G., M. J. Tarlov, G. J. Gillen, et al. "Sputtered amorphous carbon nitride films." Journal of Materials Research 10, no. 12 (1995): 3079–83. http://dx.doi.org/10.1557/jmr.1995.3079.

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The recent announcement of the synthesis of C3N4 has increased interest in this unique material. Carbon nitride may have several useful applications as wear and corrosion resistant coatings, electrical insulators, and optical coatings. We have produced amorphous carbon nitride coatings containing up to 40% nitrogen using planar magnetron RF sputtering with and without an ion beam in a nitrogen atmosphere. Both wavelength dispersive x-ray spectrometry (WDX) and x-ray photoelectron spectroscopy (XPS) indicate this composition. Coatings up to 2 μm thick were produced on alumina, silicon, SiO2, an

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36

Szuromi, Phil. "Tuning boron-carbon-nitride films." Science 371, no. 6525 (2021): 138.6–139. http://dx.doi.org/10.1126/science.371.6525.138-f.

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37

Burdina, Klavdia P., Nikita B. Zorov, Oleg V. Kravchenko, Yuri Ya Kuzyakov, Jong I. Kim, and Sergei A. Kulinich. "Synthesis of crystalline carbon nitride." Mendeleev Communications 10, no. 6 (2000): 207–8. http://dx.doi.org/10.1070/mc2000v010n06abeh001299.

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38

Alcalá, M. D., J. C. Sánchez-López, C. Real, A. Fernández, and P. Matteazzi. "Mechanosynthesis of carbon nitride compounds." Diamond and Related Materials 10, no. 11 (2001): 1995–2001. http://dx.doi.org/10.1016/s0925-9635(01)00467-8.

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39

Kong, Lingru, Jiangcai Wang, Fengcai Ma, Mengtao Sun, and Jun Quan. "Graphitic carbon nitride nanostructures: Catalysis." Applied Materials Today 16 (September 2019): 388–424. http://dx.doi.org/10.1016/j.apmt.2019.06.003.

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40

Kola, P. V., D. C. Cameron, and M. S. J. Hashmi. "Magnetron sputtered carbon nitride films." Surface and Coatings Technology 68-69 (December 1994): 188–93. http://dx.doi.org/10.1016/0257-8972(94)90158-9.

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41

Balázsi, Csaba, Zsolt Czigány, Ferenc Wéber, et al. "Silicon Nitride – Carbon Nanotube Composites." Materials Science Forum 554 (August 2007): 123–28. http://dx.doi.org/10.4028/www.scientific.net/msf.554.123.

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Multiwall carbon nanotube reinforced silicon nitride composites have been prepared by hot isostatic pressing. A manufacturing process has been worked out to avoid the damage of nanotubes during sintering. This method provides their preservation even in severe circumstances at temperature 1700°C and gas pressure 20 MPa. As shown by scanning and transmission electron microscopy after low and high pressure processing, carbon nanotubes have good adherence to the silicon nitride grains. Moreover, carbon nanotubes have been found to be located not only at grain surfaces, but in several cases they ar

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42

Liu, Amy Y., and Renata M. Wentzcovitch. "Stability of carbon nitride solids." Physical Review B 50, no. 14 (1994): 10362–65. http://dx.doi.org/10.1103/physrevb.50.10362.

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43

Dante, Roberto C. "Water photolysis by carbon nitride." International Journal of Hydrogen Energy 44, no. 38 (2019): 21030–36. http://dx.doi.org/10.1016/j.ijhydene.2019.01.202.

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44

Rodil, S. E., and S. Muhl. "Bonding in amorphous carbon nitride." Diamond and Related Materials 13, no. 4-8 (2004): 1521–31. http://dx.doi.org/10.1016/j.diamond.2003.11.008.

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45

Caicedo, J. C., C. Amaya, G. Cabrera, et al. "Corrosion surface protection by using titanium carbon nitride/titanium–niobium carbon nitride multilayered system." Thin Solid Films 519, no. 19 (2011): 6362–68. http://dx.doi.org/10.1016/j.tsf.2011.04.035.

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46

Li, Xuefei, Qianyu Sun, Ming Li, et al. "Photocatalytic properties of nano-structured carbon nitride: a comparison with bulk graphitic carbon nitride." International Journal of Materials Research 109, no. 2 (2018): 129–35. http://dx.doi.org/10.3139/146.111586.

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Djire, Abdoulaye. "(Invited) 2D Nitride Mxenes with Unusual Chemistries for Carbon-Neutral Energy." ECS Meeting Abstracts MA2023-01, no. 13 (2023): 1301. http://dx.doi.org/10.1149/ma2023-01131301mtgabs.

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The large-scale shift towards renewable energy technology requires the ability to reliably convert and store electrochemical energy. This technology is still limited in terms of performance, cost, and/or ease of utilization. In recent years, two-dimensional (2D) materials have been explored as low-cost, high-performing catalysts and electrodes for the reliable conversion and storage of electrochemical energy. Of these 2D materials, a special class of carbides and nitrides, known as MXenes, have gained popularity due to their high tunability, conductivity, and high surface area-to-volume ratio.

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Ibrahim Alabid, Khalil, and Hajar Nasser. "Synthesis and Characterization Graphene- Carbon Nitride Nanostructure in One Step." Ibn AL-Haitham Journal For Pure and Applied Sciences 36, no. 3 (2023): 260–72. http://dx.doi.org/10.30526/36.3.3103.

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Graphene-carbon nitride can be synthesized from thiourea in a single step at a temperature of four hours at a rate of 2.3 ℃/min. Graphene-carbon nitride was characterized by Fourier-transform infrared spectroscopy (FTIR), energy dispersive X-ray analysis (EDX), scanning electron microscopy, and spectrophotometry (UV-VIS). Graphene-carbon nitride was found to consist of triazine and heptazine structures, carbon, and nitrogen. The weight percentage of carbon and the atomic percentage of carbon are 40.08%, and the weight percentage of nitrogen and the atomic percentage of nitrogen are 40.08%. The

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Chalmpes, Nikolaos, Georgios Asimakopoulos, Konstantinos Spyrou, et al. "Functional Carbon Materials Derived through Hypergolic Reactions at Ambient Conditions." Nanomaterials 10, no. 3 (2020): 566. http://dx.doi.org/10.3390/nano10030566.

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Carbon formation from organic precursors is an energy-consuming process that often requires the heating of a precursor in an oven at elevated temperature. In this paper, we present a conceptually different synthesis pathway for functional carbon materials based on hypergolic mixtures, i.e., mixtures that spontaneously ignite at ambient conditions once its ingredients contact each other. The reactions involved in such mixtures are highly exothermic, giving-off sizeable amounts of energy; hence, no any external heat source is required for carbonization, thus making the whole process more energy-

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Chen, Zupeng, Evgeniya Vorobyeva, Sharon Mitchell, et al. "Single-atom heterogeneous catalysts based on distinct carbon nitride scaffolds." National Science Review 5, no. 5 (2018): 642–52. http://dx.doi.org/10.1093/nsr/nwy048.

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Abstract Carbon nitrides integrating macroheterocycles offer unique potential as hosts for stabilizing metal atoms due to their rich electronic structure. To date, only graphitic heptazine-based polymers have been studied. Here, we demonstrate that palladium atoms can be effectively isolated on other carbon nitride scaffolds including linear melem oligomers and poly(triazine/heptazine imides). Increased metal uptake was linked to the larger cavity size and the presence of chloride ions in the polyimide structures. Changing the host structure leads to significant variation in the average oxidat

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