Author, as appears in the article.: Dubov O; Marcé JG; Fortuny A; Fabregat A; Stüber F; Font J
Department: Enginyeria Química
URV's Author/s: Dubov, Oleg / Fabregat Llangostera, Azael / Font Capafons, José / Giralt Marcé, Jaume / Stüber, Frank Erich
Project code: Grant agreement No. 713679
Keywords: Glassy-carbon melamine kinetics growth capacitance
Abstract: 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.
Thematic Areas: 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
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: oleg.dubov@urv.cat jaume.giralt@urv.cat jose.font@urv.cat afabrega@urv.cat frankerich.stuber@urv.cat oleg.dubov@urv.cat oleg.dubov@urv.cat
Author identifier: 0000-0002-7615-3631 0000-0001-5917-8741 0000-0002-4007-7905 0000-0002-5525-5401 0000-0001-9424-1400 0000-0002-7615-3631 0000-0002-7615-3631
Record's date: 2024-02-25
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://link.springer.com/article/10.1007/s10853-022-06906-5
Funding program: Marie Skłodowska-Curie Actions - European Union's Horizon 2020 research and innovation programme
Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Journal Of Materials Science. 57 (8): 4970-4989
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
Acronym: MFP
Article's DOI: 10.1007/s10853-022-06906-5
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Funding program action: Martí i Franquès COFUND Doctoral Programme
Publication Type: Journal Publications
Repositori URV