Nitrogen-carbon graphite-like semiconductor synthesized from uric acid
Por:
Dante, Roberto C., Chamorro-Posada, Pedro, Vazquez-Cabo, Jose, Rubinos-Lopez, Oscar, Sanchez-Arevalo, Francisco M., Huerta, Lazaro, Martin-Ramos, Pablo, Lartundo-Rojas, Luis, Avila-Vega, Carlos F., Rivera-Tapia, Edgar D., Fajardo-Pruna, Cristian A., Avila-Vega, Alvaro J., Solorza-Feria, Omar
Publicada:
1 sep 2017
Categoría:
Chemistry (miscellaneous)
Resumen:
A new carbon-nitrogen organic semiconductor has been synthesized by
pyrolysis of uric acid. This layered carbon-nitrogen material contains
imidazole-, pyridine (naphthyridine)-and graphitic-like nitrogen, as
evinced by infrared and X-ray photoelectron spectroscopies. Quantum
chemistry calculations support that it would consist of a 2D polymeric
material held together by hydrogen bonds. Layers are stacked with an
interplanar distance between 3.30 and 3.36 angstrom, as in graphite and
coke. Terahertz spectroscopy shows a behavior similar to that of
amorphous carbons, such as coke, with non-interacting layers. This
material features substantial differences from polymeric carbon nitride,
with some characteristics closer to those of nitrogen-doped graphene, in
spite of its higher nitrogen content. The direct optical band gap,
dependent on the polycondensation temperature, ranges from 2.10 to 2.32
eV. Although in general the degree of crystallinity is low, in the
material synthesized at 600 C-circle some spots with a certain degree of
crystallinity can be found. (C) 2017 Elsevier Ltd. All rights reserved.
Filiaciones:
Dante, Roberto C.:
2Dto3D Srls, Res Dev & Innovat, Via Revalanca 5, I-12036 Revello, CN, Italy
Chamorro-Posada, Pedro:
Univ Valladolid, ETSI Telecomunicac, Dept Teoria Senal & Comunicac, Paseo Belen 15, Valladolid 47011, Spain
Univ Valladolid, ETSI Telecomunicac, IT, Paseo Belen 15, Valladolid 47011, Spain
Vazquez-Cabo, Jose:
Univ Vigo, ETSI Telecomunicac, Dept Teoria Senal & Comunicac, Lagoas Marcosende S-N, Vigo, Spain
Rubinos-Lopez, Oscar:
Univ Vigo, ETSI Telecomunicac, Dept Teoria Senal & Comunicac, Lagoas Marcosende S-N, Vigo, Spain
Sanchez-Arevalo, Francisco M.:
Univ Nacl Autonoma Mexico, Inst Invest Mat, Apdo Postal 70-360, Mexico City 04510, DF, Mexico
Huerta, Lazaro:
Univ Nacl Autonoma Mexico, Inst Invest Mat, Apdo Postal 70-360, Mexico City 04510, DF, Mexico
Martin-Ramos, Pablo:
Univ Zaragoza, Inst Univ Ciencias Ambientales Aragon IUCA, EPS, Carretera Cuarte S-N, Huesca 22071, Spain
Lartundo-Rojas, Luis:
UPALM, Ctr Nanociencias & Micro & Nanotecnol Nanociencia, Inst Politecn Nacl, Mexico City 07738, DF, Mexico
Avila-Vega, Carlos F.:
EPN, Escuela Politecn, Dept Ingn Civil & Ambiental, Ladron Guevara E11-253, Quito, Ecuador
Rivera-Tapia, Edgar D.:
Newcastle Univ, Sch Mech Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England
Fajardo-Pruna, Cristian A.:
Escuela Politec Nacl, Dept Formac Basica, Ladron Guevara E11-253, Quito, Ecuador
Avila-Vega, Alvaro J.:
Inst Nacl Eficiencia Energet & Energias Renovable, Inaquito N3537 & Juan Pablo Saenz, Quito, Ecuador
Solorza-Feria, Omar:
IPN, CINVESTAV, Ctr Invest & Estudios Avanzados, Dept Quim, Ave IPN 2508,Apdo Postal 14-740, Mexico City 07360, DF, Mexico
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