СИНТЕЗ ТА ДОСЛІДЖЕННЯ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСУ Nd(ІІІ) та Ni(ІІ) ЯК ПРЕКУРСОРУ ДЛЯ ОТРИМАННЯ СКЛАДНООКСИДНИХ СТРУКТУР
The heterometallic acetylacetonate complex NdNi(АА)5·6Н2О has been synthesized to obtain nickel-neodymium-containing complex oxide materials. The properties of the complex have been investigated by physico-chemical methods of analysis (elemental analysis, differential thermal analysis, IR spectrosco...
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| Date: | 2019 |
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V.I.Vernadsky Institute of General and Inorganic Chemistry
2019
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oai:ojs2.1444248.nisspano.web.hosting-test.net:article-752019-09-30T19:15:11Z SYNTHESIS AND STUDY OF THE HETERONUCLEAR ACETYLACETONATE Nd(III) AND Ni(II) COMPLEX AS A PRECURSOR FOR OBTAINING COMPLEX-OXIDE STRUCTURES СИНТЕЗ И ИССЛЕДОВАНИЕ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСА Nd(ІІІ) и Ni(ІІ) КАК ПРЕКУРСОРА ДЛЯ ПОЛУЧЕНИЯ СЛОЖНООКСИДНЫХ СТРУКТУР СИНТЕЗ ТА ДОСЛІДЖЕННЯ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСУ Nd(ІІІ) та Ni(ІІ) ЯК ПРЕКУРСОРУ ДЛЯ ОТРИМАННЯ СКЛАДНООКСИДНИХ СТРУКТУР Zheleznova, Lidia Sliusarchuk, Lyudmila Ivakha, Nadiia Kuleshov, Serhii Trunova, Olena complexes, neodymium, nickel, acetylacetone, synthesis, thermal analysis, IR spectra, X-ray powder diffraction, complex oxides The heterometallic acetylacetonate complex NdNi(АА)5·6Н2О has been synthesized to obtain nickel-neodymium-containing complex oxide materials. The properties of the complex have been investigated by physico-chemical methods of analysis (elemental analysis, differential thermal analysis, IR spectroscopy, X-ray powder diffraction). The data of X-ray powder diffraction and IR spectroscopy of NdNi(АА)5·6Н2О confirmed the formation of a new heterometallic single-phase compound. In the IR spectrum of NdNi(АА)5·6Н2О, a change is observed in the amount and position of the bands in the region of stretching vibrations of the М-О, CС, CО bonds, as compared to the IR spectra of the monometallic complexes Ni(AA)2·2Н2О and Nd(AA)3·3Н2О. An assessment of the thermal stability of the complex has been performed. It was shown that the synthesized heterometallic complex NdNi(АА)5·6Н2О is thermally more stable than monometallic acetylacetonates of Ni(II) and Nd(III). The heterocomplex can be used as a precursor to obtain heterometallic oxide structures. The pyrolysis of the NdNi(АА)5·6Н2О complex and, for comparison, the pyrolysis of the monocomplexes Ni(AA)2·2Н2О and Nd(AA)3·3Н2О were carried out with changing the thermolysis conditions — change of heating rate (from 5 °C/min to 20 °C/min), change of the final heating temperature (to 500 °C and to 800 °C), change of the exposure time at the final temperature (from 1 hour to 5 hours). It has been established that a change in the temperature conditions of the pyrolysis process affects the characteristics of the materials obtained (degree of amorphism, phase composition, the presence of impurities). The study of the composition of the pyrolysis products of the heterocomplex and the mixture of monometallic acetylacetonates of Ni(II) and Nd(III), obtained under heating to 800°C and holding at this temperature for 3 hours, showed the formation of a complex oxide Nd2NiO4, as well as other phases NiO, Nd6O11, Nd-Ni-O. However, their amount is noticeably smaller in the case of using a heterocomplex. It is shown that the temperature of heat treatment of the heterometallic complex and the time of its pyrolysis are much less in comparison with solid-phase synthesis methods. V.I.Vernadsky Institute of General and Inorganic Chemistry 2019-08-15 Article Article Inorganic Chemistry Неорганическая химия Неорганічна хімія application/pdf https://ucj.org.ua/index.php/journal/article/view/75 10.33609/0041-6045.85.8.2019.83-93 Ukrainian Chemistry Journal; Vol. 85 No. 8 (2019): Ukrainian Chemistry Journal; 83-93 Украинский химический журнал; Том 85 № 8 (2019): Украинский химический журнал; 83-93 Український хімічний журнал; Том 85 № 8 (2019): Український хімічний журнал; 83-93 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/75/49 |
| institution |
Ukrainian Chemistry Journal |
| baseUrl_str |
|
| datestamp_date |
2019-09-30T19:15:11Z |
| collection |
OJS |
| language |
English |
| topic_facet |
complexes neodymium nickel acetylacetone synthesis thermal analysis IR spectra X-ray powder diffraction complex oxides |
| format |
Article |
| author |
Zheleznova, Lidia Sliusarchuk, Lyudmila Ivakha, Nadiia Kuleshov, Serhii Trunova, Olena |
| spellingShingle |
Zheleznova, Lidia Sliusarchuk, Lyudmila Ivakha, Nadiia Kuleshov, Serhii Trunova, Olena СИНТЕЗ ТА ДОСЛІДЖЕННЯ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСУ Nd(ІІІ) та Ni(ІІ) ЯК ПРЕКУРСОРУ ДЛЯ ОТРИМАННЯ СКЛАДНООКСИДНИХ СТРУКТУР |
| author_facet |
Zheleznova, Lidia Sliusarchuk, Lyudmila Ivakha, Nadiia Kuleshov, Serhii Trunova, Olena |
| author_sort |
Zheleznova, Lidia |
| title |
СИНТЕЗ ТА ДОСЛІДЖЕННЯ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСУ Nd(ІІІ) та Ni(ІІ) ЯК ПРЕКУРСОРУ ДЛЯ ОТРИМАННЯ СКЛАДНООКСИДНИХ СТРУКТУР |
| title_short |
СИНТЕЗ ТА ДОСЛІДЖЕННЯ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСУ Nd(ІІІ) та Ni(ІІ) ЯК ПРЕКУРСОРУ ДЛЯ ОТРИМАННЯ СКЛАДНООКСИДНИХ СТРУКТУР |
| title_full |
СИНТЕЗ ТА ДОСЛІДЖЕННЯ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСУ Nd(ІІІ) та Ni(ІІ) ЯК ПРЕКУРСОРУ ДЛЯ ОТРИМАННЯ СКЛАДНООКСИДНИХ СТРУКТУР |
| title_fullStr |
СИНТЕЗ ТА ДОСЛІДЖЕННЯ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСУ Nd(ІІІ) та Ni(ІІ) ЯК ПРЕКУРСОРУ ДЛЯ ОТРИМАННЯ СКЛАДНООКСИДНИХ СТРУКТУР |
| title_full_unstemmed |
СИНТЕЗ ТА ДОСЛІДЖЕННЯ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСУ Nd(ІІІ) та Ni(ІІ) ЯК ПРЕКУРСОРУ ДЛЯ ОТРИМАННЯ СКЛАДНООКСИДНИХ СТРУКТУР |
| title_sort |
синтез та дослідження ацетилацетонатного гетероядерного комплексу nd(ііі) та ni(іі) як прекурсору для отримання складнооксидних структур |
| title_alt |
SYNTHESIS AND STUDY OF THE HETERONUCLEAR ACETYLACETONATE Nd(III) AND Ni(II) COMPLEX AS A PRECURSOR FOR OBTAINING COMPLEX-OXIDE STRUCTURES СИНТЕЗ И ИССЛЕДОВАНИЕ АЦЕТИЛАЦЕТОНАТНОГО ГЕТЕРОЯДЕРНОГО КОМПЛЕКСА Nd(ІІІ) и Ni(ІІ) КАК ПРЕКУРСОРА ДЛЯ ПОЛУЧЕНИЯ СЛОЖНООКСИДНЫХ СТРУКТУР |
| description |
The heterometallic acetylacetonate complex NdNi(АА)5·6Н2О has been synthesized to obtain nickel-neodymium-containing complex oxide materials. The properties of the complex have been investigated by physico-chemical methods of analysis (elemental analysis, differential thermal analysis, IR spectroscopy, X-ray powder diffraction).
The data of X-ray powder diffraction and IR spectroscopy of NdNi(АА)5·6Н2О confirmed the formation of a new heterometallic single-phase compound. In the IR spectrum of NdNi(АА)5·6Н2О, a change is observed in the amount and position of the bands in the region of stretching vibrations of the М-О, CС, CО bonds, as compared to the IR spectra of the monometallic complexes Ni(AA)2·2Н2О and Nd(AA)3·3Н2О.
An assessment of the thermal stability of the complex has been performed. It was shown that the synthesized heterometallic complex NdNi(АА)5·6Н2О is thermally more stable than monometallic acetylacetonates of Ni(II) and Nd(III). The heterocomplex can be used as a precursor to obtain heterometallic oxide structures. The pyrolysis of the NdNi(АА)5·6Н2О complex and, for comparison, the pyrolysis of the monocomplexes Ni(AA)2·2Н2О and Nd(AA)3·3Н2О were carried out with changing the thermolysis conditions — change of heating rate (from 5 °C/min to 20 °C/min), change of the final heating temperature (to 500 °C and to 800 °C), change of the exposure time at the final temperature (from 1 hour to 5 hours). It has been established that a change in the temperature conditions of the pyrolysis process affects the characteristics of the materials obtained (degree of amorphism, phase composition, the presence of impurities). The study of the composition of the pyrolysis products of the heterocomplex and the mixture of monometallic acetylacetonates of Ni(II) and Nd(III), obtained under heating to 800°C and holding at this temperature for 3 hours, showed the formation of a complex oxide Nd2NiO4, as well as other phases NiO, Nd6O11, Nd-Ni-O. However, their amount is noticeably smaller in the case of using a heterocomplex.
It is shown that the temperature of heat treatment of the heterometallic complex and the time of its pyrolysis are much less in comparison with solid-phase synthesis methods. |
| publisher |
V.I.Vernadsky Institute of General and Inorganic Chemistry |
| publishDate |
2019 |
| url |
https://ucj.org.ua/index.php/journal/article/view/75 |
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