Autor segons l'article: Dubov O; Marcé JG; Fortuny A; Fabregat A; Stüber F; Font J
Departament: Enginyeria Química
Autor/s de la URV: Dubov, Oleg / Fabregat Llangostera, Azael / Font Capafons, José / Giralt Marcé, Jaume / Stüber, Frank Erich
Codi de projecte: Grant agreement No. 713679
Paraules clau: Glassy-carbon melamine kinetics growth capacitance
Resum: Uniform flexible carbon nitride coatings have been synthesized by means of annealing of films, fabricated from soluble triazine-based polymeric precursors. The coatings exhibit fascinating electrochemical stability and drastically increase the capacitance of coated carbon cloth electrodes. Following the analogue with turbostratic carbons, typically produced by means of polymeric precursors pyrolysis, we demonstrate that annealing of dried nitrogen-rich polymeric films results in coatings, composed by nearly equal atomic quantities of carbon and nitrogen, according to elemental analysis, and exhibiting noticeable mechanical robustness. X-ray difffraction patterns and infrared spectra of the materials allow to characterize them as partially amorphous carbon nitride with presumably heptazinic structure. Annealed films exhibit extrinsic semiconducting behavior with optical bandgaps in the range from 1.71 to 1.99 eV and fairly good conductivity. The outstanding long-term electrochemical stability of annealed films makes them competitive with pyrolytic carbon, while much lower annealing temperatures allow preparation of nanocomposites with various particles. The precursor polymers were obtained by self-condensation of 2-amino-4,6-dichloro-1,3,5-triazine and condensation of cyanuric chloride with 5-aminotetrazole and 3-amino-1,2,4-triazole-5-carboxylic acid, respectively, in N,N-dimethylacetamide. The polymers contain mainly C–N skeletal bonds and can therefore be viewed as “extension” of typical carbon nitride precursors, like melamine or dicyandiamide, to polymeric structure.
Àrees temàtiques: Zootecnia / recursos pesqueiros Química Polymers and plastics Odontología Medicina veterinaria Medicina ii Medicina i Mechanics of materials Mechanical engineering Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materials science Materiais Interdisciplinar General materials science Farmacia Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Ciência da computação Ceramics and composites Biotecnología Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: oleg.dubov@urv.cat oleg.dubov@urv.cat oleg.dubov@urv.cat frankerich.stuber@urv.cat afabrega@urv.cat jose.font@urv.cat
Identificador de l'autor: 0000-0002-7615-3631 0000-0002-7615-3631 0000-0002-7615-3631 0000-0001-9424-1400 0000-0002-5525-5401 0000-0002-4007-7905
Data d'alta del registre: 2024-09-07
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://link.springer.com/article/10.1007/s10853-022-06906-5
Programa de finançament: Marie Skłodowska-Curie Actions - European Union's Horizon 2020 research and innovation programme
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Journal Of Materials Science. 57 (8): 4970-4989
Referència de l'ítem segons les normes APA: Dubov O; Marcé JG; Fortuny A; Fabregat A; Stüber F; Font J (2022). Flexible semi-amorphous carbon nitride films with outstanding electrochemical stability derived from soluble polymeric precursors. Journal Of Materials Science, 57(8), 4970-4989. DOI: 10.1007/s10853-022-06906-5
Acrònim: MFP
DOI de l'article: 10.1007/s10853-022-06906-5
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2022
Acció del programa de finançament: Martí i Franquès COFUND Doctoral Programme
Tipus de publicació: Journal Publications