title: Direct synthesis of graphitic mesoporous carbon from green phenolic resins exposed to subsequent UV and IR laser irradiations.
abstract: The design of mesoporous carbon materials with controlled textural and structural features by rapid, cost-effective and eco-friendly means is highly demanded for many fields of applications. We report herein on the fast and tailored synthesis of mesoporous carbon by UV and IR laser assisted irradiations of a solution consisting of green phenolic resins and surfactant agent. By tailoring the UV laser parameters such as energy, pulse repetition rate or exposure time carbon materials with different pore size, architecture and wall thickness were obtained. By increasing irradiation dose, the mesopore size diminishes in the favor of wall thickness while the morphology shifts from worm-like to an ordered hexagonal one. This was related to the intensification of phenolic resin cross-linking which induces the reduction of H-bonding with the template as highlighted by13C and1H NMR. In addition, mesoporous carbon with graphitic structure was obtained by IR laser irradiation at room temperature and in very short time periods compared to the classical long thermal treatment at very high temperatures. Therefore, the carbon texture and structure can be tuned only by playing with laser parameters, without extra chemicals, as usually required.
authors.affiliation: Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, Atomistilor 409 bis, Magurele, Romania.|University of Bucharest, Faculty of Physics, Atomistilor 405, Magurele, Romania.
authors.forename: Mihai
authors.initials: M
authors.lastname: Sopronyi
authors.affiliation: Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, Atomistilor 409 bis, Magurele, Romania.
authors.forename: Felix
authors.initials: F
authors.lastname: Sima
authors.affiliation: Université de Strasbourg, Université de Haute Alsace, Institut de Science des Matériaux de Mulhouse, CNRS UMR 7361, 15 rue Jean Starcky, 68057 Mulhouse, France.
authors.forename: Cyril
authors.initials: C
authors.lastname: Vaulot
authors.affiliation: Université de Strasbourg, Université de Haute Alsace, Institut de Science des Matériaux de Mulhouse, CNRS UMR 7361, 15 rue Jean Starcky, 68057 Mulhouse, France.
authors.forename: Luc
authors.initials: L
authors.lastname: Delmotte
authors.affiliation: IREPA LASER, Pôle API Parc d'Innovation 67400 Illkirch, France.
authors.forename: Armel
authors.initials: A
authors.lastname: Bahouka
authors.affiliation: Université de Strasbourg, Université de Haute Alsace, Institut de Science des Matériaux de Mulhouse, CNRS UMR 7361, 15 rue Jean Starcky, 68057 Mulhouse, France.
authors.forename: Camelia
authors.initials: C
authors.lastname: Matei Ghimbeu