Published January 2005 | Version v1
Journal article Metadata-only

Thermodynamic properties of neodymium cuprate Nd2CuO4-δ

Creators

  • 1. Moskovskij Gosudrastvennyj Univ. im. M.V. Lomonosova, Khimicheskij Fakul'tet, Moscow (Russian Federation)

Description

Thermodynamic functions of Nd2CuO4-δ formation from neodymium and copper oxides were calculated by the results of ascertaining the enthalpy of stoichiometric phase dissolution in lead-borate melt at 973 K, as well as measurements of electromotive forces of electrochemical cell with fluorine ion electrolyte in the range of temperatures from 1062 to 1228 K in oxygen flow. Relying on literature data and results of the study, the dependence of the Gibbs energy of Nd2CuO4-δ solid solution formation on the temperature and composition was plotted and thermodynamic functions of the stoichiometric phase formation from Nd2O3 and CuO were calculated

Abstract (Russian)

Термодинамические функции образования Nd2CuO4-δ из оксидов неодима и меди рассчитаны по результатам определения энтальпии растворения стехиометрической фазы в свинцово-боратном расплаве при 973 К и измерений электродвижущих сил электрохимической ячейки с фтор-ионным электролитом в интервале температур от 1062 до 1228 К в токе кислорода. На основании литературных данных и результатов настоящего исследования построена зависимость энергии Гиббса образования твердого раствора Nd2CuO4-δ от температуры и состава, рассчитаны термодинамические функции образования стехиометрической фазы из Nd2O3 и CuO

Additional details

Additional titles

Original title (Russian)
Термодинамические свойства купрата неодима Нд

Publishing Information

Journal Title
Zhurnal Fizicheskoj Khimii
Journal Volume
79
Journal Issue
1
Journal Page Range
p. 41-45
ISSN
0044-4537
CODEN
ZFKHA9

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
37106603
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
CALORIMETRY; CHEMICAL COMPOSITION; COPPER OXIDES; ELECTROMOTIVE FORCE; EXPERIMENTAL DATA; FORMATION FREE ENTHALPY; FORMATION HEAT; NEODYMIUM OXIDES; SOLID SOLUTIONS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K
Descriptors DEC
CHALCOGENIDES; COPPER COMPOUNDS; DATA; DISPERSIONS; ENERGY; ENTHALPY; FREE ENTHALPY; HOMOGENEOUS MIXTURES; INFORMATION; MIXTURES; NEODYMIUM COMPOUNDS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; REACTION HEAT; SOLUTIONS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
18 refs., 1 fig., 2 tabs.