Thermodynamics of formation of binary and ternary nitrides in the System Ce/Mn/N

Authors
Tessier, F Ranade, MR Navrotsky, A Niewa, R DiSalvo, FJ Leineweber, A Jacobs, H
Citation
F. Tessier et al., Thermodynamics of formation of binary and ternary nitrides in the System Ce/Mn/N, Z ANORG A C, 627(2), 2001, pp. 194-200
Citations number
36
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
ISSN journal
00442313 → ACNP
Volume
627
Issue
2
Year of publication
2001
Pages
194 - 200
Database
ISI
SICI code
0044-2313(200102)627:2<194:TOFOBA>2.0.ZU;2-Z
Abstract
Drop solution calorimetry in high-temperature oxide melts has been shown to be very useful to study the energetics of nitride formation. This methodol ogy was used to determine the enthalpies of formation from the elements of binary and ternary nitrides in the Ce/Mn/N system. The resulting values in kJ mol(-1) are; DeltaH(f)(o) (CeN) = -340.19+/-6.80, DeltaH(f)(o) (Mn3N1.95 , eta -Mn3N2 type) = -192.68+/-7.57, DeltaH(f)(o) (Mn6N5.40, theta -Mn6N5 t ype) = -430.80+/-10.93 and DeltaH(f)(o) (Ce2MnN3) = -928.18+/-9.46. The res ults show the role of inductive effects in Ce2MnN3 leading to a higher ener getic stability compared to binary components.