Documents disponibles écrits par cet auteur

Catalyst-free, one-step synthesis of olivary-shaped carbon from olive oil / Pol, Vilas G. in Industrial & engineering chemistry research, Vol. 48 N° 12 (Juin 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 12 (Juin 2009) . - pp. 5691–5695 Titre : Catalyst-free, one-step synthesis of olivary-shaped carbon from olive oil Type de document : texte imprimé Auteurs : Pol, Vilas G., Auteur ; Jose M. Calderon-Moreno, Auteur ; P. Thiyagarajan, Auteur Année de publication : 2009 Article en page(s) : pp. 5691–5695 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Olivary-shaped  carbon  particles  Closed  reactor  Olive  oil  Autogenic  pressure Résumé : High-purity olivary-shaped carbon particles with a diameter of ∼1.5 μm at the middle and a length of ∼3 μm were synthesized by the thermolysis [700 °C] of olive oil under its autogenic pressure in a closed reactor. We employed in situ mass spectrometry to monitor the volatile gases responsible for the autogenic pressure generated during the thermolysis of olive oil in the closed reactor and also measured the autogenic pressure as a function of temperature. The olivary shape of as-prepared microcarbon is verified by scanning electron microscopy and the composition by C,H,N−S and energy-dispersive X-ray analysis. The structural information is determined by powder X-ray diffraction and Raman spectroscopy, while the magnetic properties are determined by electron paramagnetic resonance. We propose a putative mechanism for their formation by using all the complementary data. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900095v [article] Catalyst-free, one-step synthesis of olivary-shaped carbon from olive oil [texte imprimé] / Pol, Vilas G., Auteur ; Jose M. Calderon-Moreno, Auteur ; P. Thiyagarajan, Auteur . - 2009 . - pp. 5691–5695. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 12 (Juin 2009) . - pp. 5691–5695 Mots-clés : Olivary-shaped  carbon  particles  Closed  reactor  Olive  oil  Autogenic  pressure Résumé : High-purity olivary-shaped carbon particles with a diameter of ∼1.5 μm at the middle and a length of ∼3 μm were synthesized by the thermolysis [700 °C] of olive oil under its autogenic pressure in a closed reactor. We employed in situ mass spectrometry to monitor the volatile gases responsible for the autogenic pressure generated during the thermolysis of olive oil in the closed reactor and also measured the autogenic pressure as a function of temperature. The olivary shape of as-prepared microcarbon is verified by scanning electron microscopy and the composition by C,H,N−S and energy-dispersive X-ray analysis. The structural information is determined by powder X-ray diffraction and Raman spectroscopy, while the magnetic properties are determined by electron paramagnetic resonance. We propose a putative mechanism for their formation by using all the complementary data. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900095v

Measurement of autogenous pressure and dissociated species during the thermolysis of mesitylene for the synthesis of monodispersed, pure, paramagnetic carbon particles / Pol, Vilas G. in Industrial & engineering chemistry research, Vol. 48 N°3 (Février 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N°3 (Février 2009) . - p. 1484–1489 Titre : Measurement of autogenous pressure and dissociated species during the thermolysis of mesitylene for the synthesis of monodispersed, pure, paramagnetic carbon particles Type de document : texte imprimé Auteurs : Pol, Vilas G., Auteur ; P. Thiyagarajan, Auteur Année de publication : 2009 Article en page(s) : p. 1484–1489 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : spherical  carbon  particles  Autogenous  pressure  Mesitylene Résumé : Two reaction parameters are important for the synthesis of entirely monodispersed, pure, paramagnetic spherical carbon particles. The experimental setup is developed to measure in situ autogenous pressure as a function of temperature during the thermolysis of mesitylene in a closed reactor. In situ mass spectrometry analyzed the dissociated species during the heating cycle of mesitylene as a function of temperature. The morphology, structure, composition, and magnetic properties of the as-prepared spherical carbon particles are characterized by using SEM, XRD, Raman spectroscopy, EDX, CHNS analysis, and EPR. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8014928 [article] Measurement of autogenous pressure and dissociated species during the thermolysis of mesitylene for the synthesis of monodispersed, pure, paramagnetic carbon particles [texte imprimé] / Pol, Vilas G., Auteur ; P. Thiyagarajan, Auteur . - 2009 . - p. 1484–1489. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N°3 (Février 2009) . - p. 1484–1489 Mots-clés : spherical  carbon  particles  Autogenous  pressure  Mesitylene Résumé : Two reaction parameters are important for the synthesis of entirely monodispersed, pure, paramagnetic spherical carbon particles. The experimental setup is developed to measure in situ autogenous pressure as a function of temperature during the thermolysis of mesitylene in a closed reactor. In situ mass spectrometry analyzed the dissociated species during the heating cycle of mesitylene as a function of temperature. The morphology, structure, composition, and magnetic properties of the as-prepared spherical carbon particles are characterized by using SEM, XRD, Raman spectroscopy, EDX, CHNS analysis, and EPR. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8014928