Published April 10, 2008
| Version v1
Journal article
Thermal decomposition of praseodymium acetate as a precursor of praseodymium oxide catalyst
Creators
- 1. Chemistry Department, Faculty of Science, Assiut University, 71516 Assiut (Egypt)
Description
Thermal events encountered throughout the heat treatment of praseodymium acetate, Pr(CH3COO)3.H2O, were studied in nitrogen and air atmospheres. The samples calcined at the 300-700 deg. C temperature range were characterized using XRD, IR and N2 adsorption. Moreover, in situ electrical conductivity was employed to follow up the formation of the different decomposition intermediates. The results indicated that the anhydrous salt decomposes to the final product, PrO1.833, through the formation of the following intermediates: Pr(OH)(CH3COO)2, PrO(CH3COO) and Pr2O2(CO3). PrO1.833 formed at 500, 600, and 700 deg. C possesses a surface area of 17, 16 and 10 m2/g and crystallites size of 14, 17 and 30 nm, respectively
Availability note (English)
Available from http://dx.doi.org/10.1016/j.tca.2008.02.002Additional details
Identifiers
- DOI
- 10.1016/j.tca.2008.02.002;
- PII
- S0040-6031(08)00041-5;
Publishing Information
- Journal Title
- Thermochimica Acta
- Journal Volume
- 470
- Journal Issue
- 1-2
- Journal Page Range
- p. 91-97
- ISSN
- 0040-6031
- CODEN
- THACAS
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40028278
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ACETATES; ADSORPTION; CATALYSTS; HEAT TREATMENTS; PRASEODYMIUM; PRASEODYMIUM OXIDES; PYROLYSIS; SURFACE AREA; TEMPERATURE RANGE 0400-1000 K; THERMAL ANALYSIS; X-RAY DIFFRACTION
- Descriptors DEC
- CARBOXYLIC ACID SALTS; CHALCOGENIDES; CHEMICAL REACTIONS; COHERENT SCATTERING; DECOMPOSITION; DIFFRACTION; ELEMENTS; METALS; OXIDES; OXYGEN COMPOUNDS; PRASEODYMIUM COMPOUNDS; RARE EARTH COMPOUNDS; RARE EARTHS; SCATTERING; SORPTION; SURFACE PROPERTIES; TEMPERATURE RANGE; THERMOCHEMICAL PROCESSES
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.