Heat Capacity and Thermodynamic Characteristics of Sodium and Potassium Nickelite-Manganites of Neodymium of NdNa2NiMnO5 and NdK2NiMnO5
Source abstract
Abstract
For the first time, neodymium nickel manganites NdNa2NiMnO5 and NdK2NiMnO5 were synthesized via the solid-state interaction method, and they crystallize in a cubic system. Using experimental dynamic calorimetry in the temperature range of 298.15–673 K, the temperature dependences of the heat capacity of NdNa2NiMnO5 and NdK2NiMnO5 were studied. At 423 K, both compounds exhibited anomalous heat capacity jumps on the C0p~f(T) dependency, likely corresponding to second-order phase transitions. Considering the phase transition temperatures, equations for the temperature dependence of heat capacity were derived, accurately describing the experimental data. Based on the experimental C0p(T) data and calculated S0 (298.15) values, temperature dependences of C0p(T) and the thermodynamic functions S0(T), H°(T)–H0(298.15), and Φxx(T) were determined for the studied compounds within the 298.15–673 K range. The analysis of electrophysical data confirmed the semiconducting and metallic nature of the conductivity, as well as identified the band gap and activation energy of conductivity. These results are valuable for the application of these materials in electronics and for controlling conductivity.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Shape Memory Alloy Transformations · Chemical Thermodynamics and Molecular Structure
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Zhantore Abishev Chemical-Metallurgical Institute, Karaganda 100009, Kazakhstan
Institute of Organic Synthesis and Coal Chemistry of Republic Kazakhstan, Karaganda 100008, Kazakhstan
Department of Chemistry and Chemical Technology, Toraighyrov University, Pavlodar 140008, Kazakhstan
Funding
Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan
References (39)
Show source-provided references
1. Ussaty, I.M. (2021). Magnetic Properties, Electrical Conductivity Mechanisms and Magnetoresistance of Solid Solutions of Perovskite Manganite of La0.5Sr0.5Mn1−yFeyO3 (y = 0–0.1). [Ph.D. Thesis, Belgorod State National Research University]. (In Russian).
2. (2025, June 02). Available online: https://en.wikipedia.org/wiki/Perovskite_(structure).
3. (2025, June 02). Available online: https://arxiv.org/pdf/2311.02643.
4. Le, T.S. (2017). Synthesis and Study of Perovskites of La1−xCaxMnO3 and Obtaining of the Heterostructures Based on Them. [Master’s Thesis, Belgorod State National Research University]. (In Russian).
5. On the structural and magnetic properties of the double perovskite Nd2NiMnO610.1007/s10854-019-02035-z ↗
6. Structural, magnetic and magnetocaloric properties of La1.95Ca0.05BMnO6 (B = Ni and Co) double perovskite10.1007/s10854-018-9526-x ↗
7. Improvement of the Magnetization and Coercivity of La0.67Ca0.33MnO3 Induced by Substitution of Nickel for Manganese10.1007/s10948-017-4200-8 ↗
8. Structural, magnetocaloric effect, critical behavior, and spin resonance analysis of monovalent-doped manganites Nd0.6Sr0.4−xMxMnO3 (x= 0.0, 0.1; M = K, Na)10.1557/s43578-023-01171-x ↗
9. Structural, magnetic and magnetocaloric investigation of La0.67Ba0.33Mn1−xNixO3 (x=0, 0.025 and 0.075) manganite10.1007/s10854-018-9810-9 ↗
10. Influence of Ni content on structural, magnetocaloric and electrical properties in manganite La0.6Ba0.2Sr0.2Mn1−xNixO3 (0 ≤ x ≤ 0.1) type perovskites
11. Effect of mixed alkali-element substitution on structural and magnetic properties of praseodymium manganites Pr0.9(Na1−xKx)0.1MnO310.1016/j.jallcom.2007.07.048 ↗
12. Bekturganova, A.Z. (2017). Synthesis and Physicochemical Properties of a Series of Tellurites and Nickelites of Certain s-d and f-Elements. [Ph.D. Thesis, Karaganda Buketov State University]. (In Russian).
13. (2025, June 02). Available online: https://bsu.by/upload/pdf/163153.pdf.
14. Yegorova, M.A. (2021). Technology of Polyfunctional Oxycompounds Based on Ferrites and Chromites of Transition Elements. [Ph.D. Thesis, South Russian State Polytechnic University named after Platov]. (In Russian).
15. Kivilis, S.S. (1959). Technique of Measuring the Density of Liquids and Solids, Standardgiz. (In Russian).
16. Krizhanovskaya, M.G., Firsova, V.A., and Bubnova, R.S. (2016). Application of the Rietveld Method for Solving Powder Diffractometry Problems, St. Petersburg University. (In Russian).
17. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides10.1107/S0567739476001551 ↗
18. (2025, June 02). Database of Ionic Radii. Available online: http://abulafia.mt.ic.ac.uk/shannon/ptable.php.
19. Wells, A.F. (1987). Structural Inorganic Chemistry, Oxford University Press.
20. Kostrominka, N.A., Kumok, V.N., and Skorik, N.A. (1990). Chemistry of Coordination Compounds, Higher School. (In Russian).
21. Nakamoto, K. (1991). IR Spectra and Raman Spectra of Inorganic and Coordination Compounds, Mir. (In Russian).
22. Heminger, W., and Hene, G. (1989). Calorimetry Theory and Practice, Khimiya. (In Russian).
23. (2025, June 02). Specification and Operating Instructions of IT-C-400. Aktobe. Aktobe Plant “Etalon”. 1986; 48p. (In Russian).
24. Spiridonov, V.P., and Lopatkin, L.V. (1970). Mathematical Processing of Experimental Data, Moscow State University Publishing. (In Russian).
25. Damaskin, B.B., Petrii, O.A., Podlovchenko, B.I., Safonov, V.A., Stenina, E.V., and Fedorovich, N.V. (1991). Practical Course in Electrochemistry, Higher School. (In Russian).
26. Correlation Characteristics of the Volumetric Thermal Expansion Coefficient and Specific Heat of Corundum10.1007/s10717-015-9726-2 ↗
27. Morris, M.C., McMurdie, H.F., Evans, E.H., Paretzkin, B., Parker, H.S., Pyrros, N.P., and Hubbard, C.R. (2025, June 02). Standard X-ray Diffraction Powder Patterns, Available online: https://archive.org/details/standardxraydiff2520morr/mode/2up.
28. Kubascewski, O., and Alcock, C.B. (1982). Metallurgical Thermochemistry, Pergamon Press.
29. Kumok, V.N. (1987). Problem of Harmonization of Methods to Estimate Thermodynamic Characteristics. Direct and Inverse Problems of Chemical Thermodynamics, Nauka. (In Russian).
30. Gerasimov, Y.I., Krestovnikov, A.N., and Shakhov, A.S. (1960). Chemical Thermodynamics in Non–Ferrous Metallurgy, Metallurgy. (In Russian).
31. Bui, M.T. (2019). Investigation of Temperature Dependences of Electrophysical Properties of Ferroelectric Materials. [Ph.D. Thesis, St. Petersburg National Research University]. (In Russian).
32. Okazaki, K. (1976). Technology of Ceramic Dielectrics, Energy. (In Russian).
33. (2025, June 02). User Manual. RLC Meter (LCR-781). M.: CJSC “PriST”. 2012; p. 3. Available online: https://saprd.ru/grsi/53914-13/2013-53914-13.pdf.
34. Thermodynamic and Electrophysics of New LaCaCuZnMnO6 Copper-Zinc Manganite of Lanthanum and Calcium10.1134/S0018151X22020225 ↗
35. Fessenko, Y.G. (1972). Perovskite Family and Ferroelectricity, Atomizdat. (In Russian).
36. Venevtsev, Y.N., Politova, Y.D., and Ivanov, S.A. (1985). Ferro- and Anti-Ferroelectrics of the Barium Titanate Family, Khimiya. (In Russian).
37. Lines, M., and Glass, A. (1981). Ferroelectrics and Their Related Materials, Mir. (In Russian).
38. (2025, June 02). Study of the Influence of Temperature on the Conductivity of Metals and Semiconductors. Minsk. Methodological Guidelines: Belarusian State University of Informatics and Radioelectronics. 2021; 14p. (In Russian).
39. Ugai, Y.A. (1984). General Chemistry, Higher School. (In Russian).