Thermal decomposition of CuProp(2): In-situ analysis of film and powder pyrolysis

The thermal decomposition of CuProp in the form of film and powder was studied in different atmospheres by means of thermal analysis techniques (TG-MS, TG-IR, EGA), chemical-structural methods (FTIR, XRD, EA) and computational thermochemistry (VASP/PBE). The decomposition mechanism in terms of volat...

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Detalles Bibliográficos
Autores: Rasi, Silvia, Silveri, Fabrizio, Ricart, Susagna, Obradors, Xavier, Puig Molina, Teresa, Roura Grabulosa, Pere, Farjas, Jordi
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/202664
Acceso en línea:http://hdl.handle.net/10261/202664
Access Level:acceso abierto
Palabra clave:Copper propionate
Pyrolysis
Thermogravimetric analysis
Evolved gas analysis
Metal carboxylates
CSD methods
Descripción
Sumario:The thermal decomposition of CuProp in the form of film and powder was studied in different atmospheres by means of thermal analysis techniques (TG-MS, TG-IR, EGA), chemical-structural methods (FTIR, XRD, EA) and computational thermochemistry (VASP/PBE). The decomposition mechanism in terms of volatiles evolved was disclosed with the aid of ab-initio modeling; it was found to be dependent on the gas diffusion in and out of the sample and accelerated by a humid atmosphere. In films, the copper redox behavior showed sensitivity to the residual atmosphere. Finally, the role of the metal center is discussed in the frame of a general decomposition mechanism for metal propionates.