INTEQUI   20941
INSTITUTO DE INVESTIGACIONES EN TECNOLOGIA QUIMICA
Unidad Ejecutora - UE
artículos
Título:
Thermal decomposition of supported lithium nitrate catalysts
Autor/es:
MARIA LUCIA RUIZ; ILEANA DANIELA LICK; MARTA ISABEL PONZI; ENRIQUE RODRÍGUEZ CASTELLÓN; ANTONIO JIMÉNEZ LÓPEZ; ESTHER NATALIA PONZI
Revista:
THERMOCHIMICA ACTA
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2009 vol. 499 p. 21 - 26
ISSN:
0040-6031
Resumen:
New catalysts for soot combustion were prepared by impregnation of different supports (SiO2, ZrO2 and
ZrO2·nH2O) with a LiNO3 solution and then characterized by means of FTIR, XPS, TGA and UVvis spectroscopy,
whereby the presence of lithium nitrate in the prepared catalysts was identified and quantified.
The soot combustion rate using this series of catalysts (LiNO3/support) was compared with the activity
of a series of impregnated catalysts prepared using LiOH (Li2O/supports). Catalysts prepared using LiNO3
New catalysts for soot combustion were prepared by impregnation of different supports (SiO2, ZrO2 and
ZrO2·nH2O) with a LiNO3 solution and then characterized by means of FTIR, XPS, TGA and UVvis spectroscopy,
whereby the presence of lithium nitrate in the prepared catalysts was identified and quantified.
The soot combustion rate using this series of catalysts (LiNO3/support) was compared with the activity
of a series of impregnated catalysts prepared using LiOH (Li2O/supports). Catalysts prepared using LiNO3
ZrO2·nH2O) with a LiNO3 solution and then characterized by means of FTIR, XPS, TGA and UVvis spectroscopy,
whereby the presence of lithium nitrate in the prepared catalysts was identified and quantified.
The soot combustion rate using this series of catalysts (LiNO3/support) was compared with the activity
of a series of impregnated catalysts prepared using LiOH (Li2O/supports). Catalysts prepared using LiNO3
whereby the presence of lithium nitrate in the prepared catalysts was identified and quantified.
The soot combustion rate using this series of catalysts (LiNO3/support) was compared with the activity
of a series of impregnated catalysts prepared using LiOH (Li2O/supports). Catalysts prepared using LiNO3
of a series of impregnated catalysts prepared using LiOH (Li2O/supports). Catalysts prepared using LiNO3
are found to be more active than those prepared using LiOH. The catalytic performance was also studied
with a NO/O2 mixture in the feed, demonstrating that NO increases the combustion rate of soot, probably
as a consequence of lithium oxide forming an in situ nitrate ion.2 mixture in the feed, demonstrating that NO increases the combustion rate of soot, probably
as a consequence of lithium oxide forming an in situ nitrate ion.