INCAPE   05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Preparation of Co/AlMCM41 catalysts by supercritical CO2
Autor/es:
ASPROMONTE, SOLEDAD; SASTRE, ALVARO; ALONSO, ESTHER; BOIX, ALICIA V.; COCERO, MARÍA JOSÉ
Lugar:
Glasgow
Reunión:
Congreso; Europacat X; 2011
Institución organizadora:
University of Glasgow
Resumen:
located into the Al-MCM-41 walls but are accessible to the reactive. An alternative approach
involves the organometallic compound dissolution in supercritical carbon dioxide (scCO2). The
technique which called chemical fluid deposition (CFD) using the excellent physical properties
of scCO2 which are modular with small variations of P and/or T. The zero surface tension of
scCO2 allows better penetrating and wetting of pores then liquid solvents. Simple removal from
the substrate by depressurization avoids problems of solvent residues or pore collapse on
drying. This works presents the deposition of Co nanoparticles directly onto MCM-41 and Al-
MCM-41 mesoporous matrix by de dissolution of cobaltocene (CoCp2) as a precursor in carbon
dioxide solution. Different characterization techniques such as SEM, TEM, XPS, SAXS and
Laser Raman Spectroscopy were employed.2). The
technique which called chemical fluid deposition (CFD) using the excellent physical properties
of scCO2 which are modular with small variations of P and/or T. The zero surface tension of
scCO2 allows better penetrating and wetting of pores then liquid solvents. Simple removal from
the substrate by depressurization avoids problems of solvent residues or pore collapse on
drying. This works presents the deposition of Co nanoparticles directly onto MCM-41 and Al-
MCM-41 mesoporous matrix by de dissolution of cobaltocene (CoCp2) as a precursor in carbon
dioxide solution. Different characterization techniques such as SEM, TEM, XPS, SAXS and
Laser Raman Spectroscopy were employed.2 which are modular with small variations of P and/or T. The zero surface tension of
scCO2 allows better penetrating and wetting of pores then liquid solvents. Simple removal from
the substrate by depressurization avoids problems of solvent residues or pore collapse on
drying. This works presents the deposition of Co nanoparticles directly onto MCM-41 and Al-
MCM-41 mesoporous matrix by de dissolution of cobaltocene (CoCp2) as a precursor in carbon
dioxide solution. Different characterization techniques such as SEM, TEM, XPS, SAXS and
Laser Raman Spectroscopy were employed.2 allows better penetrating and wetting of pores then liquid solvents. Simple removal from
the substrate by depressurization avoids problems of solvent residues or pore collapse on
drying. This works presents the deposition of Co nanoparticles directly onto MCM-41 and Al-
MCM-41 mesoporous matrix by de dissolution of cobaltocene (CoCp2) as a precursor in carbon
dioxide solution. Different characterization techniques such as SEM, TEM, XPS, SAXS and
Laser Raman Spectroscopy were employed.2) as a precursor in carbon
dioxide solution. Different characterization techniques such as SEM, TEM, XPS, SAXS and
Laser Raman Spectroscopy were employed.