TY - JOUR
T1 - Benzene thermal synthesis and characterization of crystalline carbon nitride
AU - Luv, Q.
AU - Cao, C. B.
AU - Zhang, J. T.
AU - Li, C.
AU - Zhu, H. S.
PY - 2004/8
Y1 - 2004/8
N2 - A new solvothermal route has been successfully used to prepare crystalline carbon nitride powder from 1,3,5-trichlorotriazine (C3N 3Cl3) and lithium nitride (Li3N) in benzene at 360°C and 6-7 MPa. The as-prepared sample was brown and was analyzed by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR). The results show that the powder mainly consists of α-C3N4, β-C 3N4 and some unidentified carbon-nitrogen crystalline phases. The experimental lattice constants of α-C3N4 (a = 6.48 Å, c = 4.72 Å) and β-C3N4 (a = 6.43 Å, c = 2.47 Å) match the latest ab-initio calculations (a = 6.47 Å and c = 4.72 Å for α-C3N4, a = 6.40 Å and c = 2.40 Å for β-C3N4) quite well. The relative nitrogen-to-carbon composition ratio is 0.76. Only C-N and C=N bonds were demonstrated by XPS and FTIR. The feasibility of this synthetic method is discussed and this approach may provide a possible and very effective way to realize the growth of pure crystalline carbon nitride materials, which is quite different from the conventional solid-state reactions (SSR).
AB - A new solvothermal route has been successfully used to prepare crystalline carbon nitride powder from 1,3,5-trichlorotriazine (C3N 3Cl3) and lithium nitride (Li3N) in benzene at 360°C and 6-7 MPa. The as-prepared sample was brown and was analyzed by X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR). The results show that the powder mainly consists of α-C3N4, β-C 3N4 and some unidentified carbon-nitrogen crystalline phases. The experimental lattice constants of α-C3N4 (a = 6.48 Å, c = 4.72 Å) and β-C3N4 (a = 6.43 Å, c = 2.47 Å) match the latest ab-initio calculations (a = 6.47 Å and c = 4.72 Å for α-C3N4, a = 6.40 Å and c = 2.40 Å for β-C3N4) quite well. The relative nitrogen-to-carbon composition ratio is 0.76. Only C-N and C=N bonds were demonstrated by XPS and FTIR. The feasibility of this synthetic method is discussed and this approach may provide a possible and very effective way to realize the growth of pure crystalline carbon nitride materials, which is quite different from the conventional solid-state reactions (SSR).
UR - http://www.scopus.com/inward/record.url?scp=3042596598&partnerID=8YFLogxK
U2 - 10.1007/s00339-002-2058-4
DO - 10.1007/s00339-002-2058-4
M3 - Article
AN - SCOPUS:3042596598
SN - 0947-8396
VL - 79
SP - 633
EP - 636
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 3
ER -