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]  inIndustrial & 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

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