Thermal decomposition of cerium oxalate and mixed cerium-gadolinium oxalates

Autor:	M. El-Sayed Ali, S. El-Houte
Rok vydání:	1991
Předmět:	Cerium oxide chemistry.chemical_compound Cerium chemistry Gadolinium Inorganic chemistry Thermal decomposition Anhydrous chemistry.chemical_element Cerium oxalate Endothermic process Oxalate Nuclear chemistry
Zdroj:	Journal of Thermal Analysis. 37:907-913
ISSN:	1572-8943 0368-4466
Popis:	Cerium oxalate and mixed cerium-gadolinium oxalates containing 20 and 50 mol% gadolinium were subjected to thermal decomposition. Thermal analysis showed that cerous oxalate is transformed to cerium oxide in two steps. The first step involves the endothermic removal of 10 mol of water, with a calculated activation energy of 78.2 kJ/mol. The second step involves the exothermic decomposition of the anhydrous oxalate, with an activation energy of 112.6 kJ/mol. The water content in the mixed cerium-gadolinium oxalates decreases with increasing gadolinium content, while the temperature of exothermic decomposition of the anhydrous oxalate increases with it.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8bbc9c3f31a9a9d3c2ef6b6a9be5b3f0 https://doi.org/10.1007/bf01932788 Zobrazit plný text záznamu Full text from SpringerLink