Assessment of thermodynamic data for CuCrO2 delafossite from calorimetric measurements

被引：3

作者：

Schorne-Pinto, J. ^{[1
,2
]}

Janghorban, A. ^{[3
]}

Lomello-Tafin, M. ^{[3
]}

Pisch, A. ^{[4
]}

Mikaelian, G. ^{[5
]}

Benigni, P. ^{[5
]}

Barnabe, A. ^{[2
]}

Cassayre, L. ^{[1
]}

机构：

[1] Univ Toulouse, CNRS, Lab Genie Chim, INP,UPS, Toulouse, France

[2] Univ Toulouse, CNRS, CIRIMAT, UT3 Paul Sabatier, F-31062 Toulouse 9, France

[3] Univ Savoie Mt Blanc, Lab SYMME, Annecy, France

[4] Grenoble INP, SIMAP, UGA, CNRS, F-38000 Grenoble, France

[5] Univ Toulon & Var, Aix Marseille Univ, CNRS, IM2NP, Marseille, France

来源：

THERMOCHIMICA ACTA | 2019年 / 680卷

关键词：

Cuprous delafossite CuCrO2 thermodynamic properties; Heat capacity; Drop calorimetry; Differential scanning calorimetry; CU-CR-O; HEAT-CAPACITY; PHASE-RELATIONS; GIBBS ENERGY; THIN-FILMS; SYSTEM;

D O I：

10.1016/j.tca.2019.178345

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A detailed investigation of the thermodynamic properties of delafossite CuCrO2 was carried out by experimental methods on synthetic CuCrO2 delafossite samples (differential scanning calorimetry from ambient to 871 K and drop calorimetry from 823 to 1123 K) and theoretical methods (density functional theory). Based on these data and available literature (low temperature heat capacity measurements and calculations, high temperature emf data), we propose, for the first time, a full set of thermodynamic data for the phase CuCrO2. Our selection comes to: Delta(f) H degrees(298)(CuCrO2) = -670.8 +/- 1.3 kJ mol(-1), S degrees(298)(CuCrO2) = 88.9 J K-1, and c degrees(p) (T) = 1.02564. 10(2) - 2.87159. 10(7) T-3 - 1.28542. 10(5)T(-1.5) (298 < T < 1300 K).

引用

页数：8

共 50 条

[1] Mg substitution in CuCrO2 delafossite compounds
Guilmeau, Emmanuel
Poienar, Maria
Kremer, Stefan
Marinel, Sylvain
Hebert, Sylvie
Fresard, Raymond
Maignan, Antoine
SOLID STATE COMMUNICATIONS, 2011, 151 (23) : 1798 - 1801
[2] Raman spectroscopy of the superconductor CuCrO2 delafossite oxide
Monteiro, J. F. H. L.
Jurelo, A. R.
Siqueira, E. C.
SOLID STATE COMMUNICATIONS, 2017, 252 : 64 - 67
[3] Fast synthesis of CuCrO2 delafossite by monomode microwave heating
Kumar, Sanjay
Marinel, S.
Miclau, M.
Martin, C.
MATERIALS LETTERS, 2012, 70 : 40 - 43
[4] Mechanical properties of CuCrO2 delafossite oxide single crystals
João Frederico Haas Leandro Monteiro
Gelson Biscaia de Souza
Alcione Roberto Jurelo
Willian Rafael de Oliveira
Ezequiel Costa Siqueira
Applied Physics A, 2020, 126
[5] Conductivity in (Ag,Mg)-doped delafossite oxide CuCrO2
Haas Leandro Monteiro, Joao Frederico
Monteiro, Francielli Casanova
Jurelo, Alcione Roberto
Mosca, Dante Homero
CERAMICS INTERNATIONAL, 2018, 44 (12) : 14101 - 14107
[6] Effects of the Preparation Process on the Photocatalytic Performance of Delafossite CuCrO2
Zhao, Run-Dong
Zhang, Yi-Man
Liu, Qing-Lu
Zhao, Zong-Yan
INORGANIC CHEMISTRY, 2020, 59 (22) : 16679 - 16689
[7] Mechanical properties of CuCrO2 delafossite oxide single crystals
Haas Leandro Monteiro, Joao Frederico
de Souza, Gelson Biscaia
Jurelo, Alcione Roberto
de Oliveira, Willian Rafael
Siqueira, Ezequiel Costa
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2020, 126 (03):
[8] NO3- removal with a new delafossite CuCro2 photocatalyst
Ketir, W.
Bouguelia, A.
Trari, M.
DESALINATION, 2009, 244 (1-3) : 144 - 152
[9] The effect of defects formed under pressure on CuCrO2 delafossite
Boyraz, C.
Aksu, P.
Guler, A.
Arda, L.
SN APPLIED SCIENCES, 2022, 4 (07):
[10] Magnetic dilution and steric effects in the multiferroic delafossite CuCrO2
Pachoud, E.
Singh, K.
Breard, Y.
Martin, C.
Andre, G.
Hardy, V.
Simon, Ch.
Maignan, A.
PHYSICAL REVIEW B, 2012, 86 (05):

← 1 2 3 4 5 →