Nicotine/mesoporous solids interactions at increasing temperatures under inert and air environments

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Title: Nicotine/mesoporous solids interactions at increasing temperatures under inert and air environments
Authors: Marcilla, Antonio | Beltrán, Maribel | Gómez-Siurana, Amparo | Berenguer Muñoz, Deseada | Martínez Castellanos, Isabel
Research Group/s: Procesado y Pirólisis de Polímeros
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Química | Universidad de Alicante. Instituto Universitario de Ingeniería de los Procesos Químicos
Keywords: Nicotine | Thermal degradation | Mesoporous catalysts | TGA/FTIR
Knowledge Area: Ingeniería Química
Issue Date: May-2016
Publisher: Elsevier
Citation: Journal of Analytical and Applied Pyrolysis. 2016, 119: 162-172. doi:10.1016/j.jaap.2016.02.021
Abstract: In this work, the pyrolysis of nicotine under N2 and air atmospheres and in the presence of three mesoporous materials (SBA-15 and two different forms of MCM-41) has been studied by TGA-FTIR. The results obtained show that, in the absence of a catalyst, the thermal evolution of nicotine mainly results in the volatilization of the compound. In an air atmosphere, nicotine evolves at a slightly lower temperature than in N2 and the oxidation of the small solid residue at around 475 °C is observed. The results obtained suggest that the main interaction of SBA-15 with nicotine is related to adsorption processes, with slight modifications of the reaction pathways in an N2 atmosphere and enhanced oxidation in the presence of air. The thermal decomposition of nicotine in an inert atmosphere and in the presence of MCM-41 indicates that, besides the desorption processes, an early decomposition step takes place, yielding several derivatives of nicotine. This phenomenon seems to be enhanced in an air atmosphere, where the presence of MCM-41 appears to markedly modify the evaporation and desorption of nicotine processes.
Sponsor: Financial support for this investigation has been provided by the Generalitat Valenciana (PROMETEO/2012/015).
ISSN: 0165-2370 (Print) | 1873-250X (Online)
DOI: 10.1016/j.jaap.2016.02.021
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2016 Elsevier B.V.
Peer Review: si
Publisher version:
Appears in Collections:INV - GTP3 - Artículos de Investigación sobre Pirólisis Catalítica de Polímeros

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