PHYSICOCHEMICAL CHARACTERIZATION AND NONISOTHERMAL DECOMPOSITION KINETICS OF A PRECURSOR (POLYNUCLEAR COORDINATION COMPOUND) OF MANGANESE FERRITE

Authors
CARP O SEGAL E BREZEANU M PATRON L BIRJEGA R STANICA N
Citation
O. Carp et al., PHYSICOCHEMICAL CHARACTERIZATION AND NONISOTHERMAL DECOMPOSITION KINETICS OF A PRECURSOR (POLYNUCLEAR COORDINATION COMPOUND) OF MANGANESE FERRITE, Thermochimica acta, 243(1), 1994, pp. 43-50
Citations number
13
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
243
Issue
1
Year of publication
1994
Pages
43 - 50
Database
ISI
SICI code
0040-6031(1994)243:1<43:PCANDK>2.0.ZU;2-Q
Abstract
The authors present their results concerning the possibility of using a polynuclear coordination compound, FeFeMn)-Fe-II-Mn-III(C2O4)(2)(OH) (3)(H2O)(3)].H2O, as a source for manganese ferrite. The polynuclear c ompound synthesized by a forced hydrolysis has been characterized by c hemical analysis, electronic and vibrational spectra, X-ray powder dif fractometry, magnetic susceptibility measurements and thermal analysis . This paper also presents a non-isothermal kinetic study of the decom position steps. The non-isothermal kinetic parameters have been evalua ted for the whole (alpha,t) curve as well as for its significant porti ons.