SYNTHESIS OF COMPLEX OXIDES OF COBALT-NEODYMIUM FROM HETEROCOMPLEXES AND THEIR CATALYTIC ACTIVITY IN THE DECOMPOSITION OF HYDROGEN PEROXIDE
New heterometallic complexes of Сo(II) and Nd(III) with carboxylic acids (succinic, oxalic) and acetylacetone in the presence of phenanthroline or α,α'-dipyridyl have been synthesized. Their thermal properties and the ability to form complex oxides during thermal degradation have been studied....
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V.I.Vernadsky Institute of General and Inorganic Chemistry
2022
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oai:ojs2.1444248.nisspano.web.hosting-test.net:article-4632022-10-07T08:34:01Z SYNTHESIS OF COMPLEX OXIDES OF COBALT-NEODYMIUM FROM HETEROCOMPLEXES AND THEIR CATALYTIC ACTIVITY IN THE DECOMPOSITION OF HYDROGEN PEROXIDE Sliusarchuk, Liudmyla Zheleznova, Lidia Kuleshov , Serhii Rohovtsov, Oleksandr Trunova, Olena Khomenko, Borys neodymium, cobalt, complex oxide, catalytic activity, hydrogen peroxide New heterometallic complexes of Сo(II) and Nd(III) with carboxylic acids (succinic, oxalic) and acetylacetone in the presence of phenanthroline or α,α'-dipyridyl have been synthesized. Their thermal properties and the ability to form complex oxides during thermal degradation have been studied. In the process of thermolysis of heterocomplexes, neodymium cobaltate NdCoO3 was obtained, which is confirmed by the results of X-ray powder diffraction. The research has established that the X-ray powder diffraction patterns of the products obtained by thermolysis of heterocomplex [Сo2Nd2(C4Н4O4)5·2Phen]·4Н2О to 1000 °С exhibits peaks at (2θ): 23.40, 33.74, 41.42, 48.32, 54.52, 59.94, 70.58°. This corresponds to the neodymium cobaltate NdCoO3. Neodymium cobaltate crystallizes in the cubic crystal system. The sample was obtained without extraneous phases inclusions. For the samples obtained by the termolysis of heterocomplexes [Сo2Nd2(C2O4)5·2Phen]·4Н2О and NdCo(AA)5·2α,α'-dipy, in addition to the complex oxide NdCoO3, peaks of Nd2O3 were recorded, which crystallizes in the hexagonal crystal system. The X-ray powder diffraction patterns show peaks with 2θ values: 26.92, 29.75, 30.77, 40.54, 47.53, 53.63, 57.08°. The phase ratio of NdCoO3/Nd2O3 after termolysis for the sample of CoNd(AA)5·2α,α'-dipy is ~ 68.9/31.1%; for the sample of [Сo2Nd2(C2O4)5·2Phen]·4Н2О is ~ 50/50%; for the sample of [Сo2Nd2(C4Н4O4)5·2Phen]·4Н2О is NdCoO3 ~ 100%. The average crystallites size of complex oxides was calculated using the Scherer formula. It has been showed that neodymium cobaltate has an average particle size of ~33 nm, regardless of the complex precursor from which it was formed during thermolysis. The catalytic effect of neodymium cobaltates in the hydrogen peroxide decomposition reaction was studied. It was shown that all samples of complex oxides showed a quite high catalytic activity in the all of experiments in the hydrogen peroxide decomposition reactions. V.I.Vernadsky Institute of General and Inorganic Chemistry 2022-08-26 Article Article Inorganic Chemistry Неорганическая химия Неорганічна хімія application/pdf https://ucj.org.ua/index.php/journal/article/view/463 10.33609/2708-129X.88.07.2022.3-15 Ukrainian Chemistry Journal; Vol. 88 No. 7 (2022): Ukrainian Chemistry Journal; 3-15 Украинский химический журнал; Том 88 № 7 (2022): Ukrainian Chemistry Journal; 3-15 Український хімічний журнал; Том 88 № 7 (2022): Український хімічний журнал; 3-15 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/463/237 |
| institution |
Ukrainian Chemistry Journal |
| baseUrl_str |
|
| datestamp_date |
2022-10-07T08:34:01Z |
| collection |
OJS |
| language |
English |
| topic_facet |
neodymium cobalt complex oxide catalytic activity hydrogen peroxide |
| format |
Article |
| author |
Sliusarchuk, Liudmyla Zheleznova, Lidia Kuleshov , Serhii Rohovtsov, Oleksandr Trunova, Olena Khomenko, Borys |
| spellingShingle |
Sliusarchuk, Liudmyla Zheleznova, Lidia Kuleshov , Serhii Rohovtsov, Oleksandr Trunova, Olena Khomenko, Borys SYNTHESIS OF COMPLEX OXIDES OF COBALT-NEODYMIUM FROM HETEROCOMPLEXES AND THEIR CATALYTIC ACTIVITY IN THE DECOMPOSITION OF HYDROGEN PEROXIDE |
| author_facet |
Sliusarchuk, Liudmyla Zheleznova, Lidia Kuleshov , Serhii Rohovtsov, Oleksandr Trunova, Olena Khomenko, Borys |
| author_sort |
Sliusarchuk, Liudmyla |
| title |
SYNTHESIS OF COMPLEX OXIDES OF COBALT-NEODYMIUM FROM HETEROCOMPLEXES AND THEIR CATALYTIC ACTIVITY IN THE DECOMPOSITION OF HYDROGEN PEROXIDE |
| title_short |
SYNTHESIS OF COMPLEX OXIDES OF COBALT-NEODYMIUM FROM HETEROCOMPLEXES AND THEIR CATALYTIC ACTIVITY IN THE DECOMPOSITION OF HYDROGEN PEROXIDE |
| title_full |
SYNTHESIS OF COMPLEX OXIDES OF COBALT-NEODYMIUM FROM HETEROCOMPLEXES AND THEIR CATALYTIC ACTIVITY IN THE DECOMPOSITION OF HYDROGEN PEROXIDE |
| title_fullStr |
SYNTHESIS OF COMPLEX OXIDES OF COBALT-NEODYMIUM FROM HETEROCOMPLEXES AND THEIR CATALYTIC ACTIVITY IN THE DECOMPOSITION OF HYDROGEN PEROXIDE |
| title_full_unstemmed |
SYNTHESIS OF COMPLEX OXIDES OF COBALT-NEODYMIUM FROM HETEROCOMPLEXES AND THEIR CATALYTIC ACTIVITY IN THE DECOMPOSITION OF HYDROGEN PEROXIDE |
| title_sort |
synthesis of complex oxides of cobalt-neodymium from heterocomplexes and their catalytic activity in the decomposition of hydrogen peroxide |
| description |
New heterometallic complexes of Сo(II) and Nd(III) with carboxylic acids (succinic, oxalic) and acetylacetone in the presence of phenanthroline or α,α'-dipyridyl have been synthesized. Their thermal properties and the ability to form complex oxides during thermal degradation have been studied. In the process of thermolysis of heterocomplexes, neodymium cobaltate NdCoO3 was obtained, which is confirmed by the results of X-ray powder diffraction.
The research has established that the X-ray powder diffraction patterns of the products obtained by thermolysis of heterocomplex [Сo2Nd2(C4Н4O4)5·2Phen]·4Н2О to 1000 °С exhibits peaks at (2θ): 23.40, 33.74, 41.42, 48.32, 54.52, 59.94, 70.58°. This corresponds to the neodymium cobaltate NdCoO3. Neodymium cobaltate crystallizes in the cubic crystal system. The sample was obtained without extraneous phases inclusions. For the samples obtained by the termolysis of heterocomplexes [Сo2Nd2(C2O4)5·2Phen]·4Н2О and NdCo(AA)5·2α,α'-dipy, in addition to the complex oxide NdCoO3, peaks of Nd2O3 were recorded, which crystallizes in the hexagonal crystal system. The X-ray powder diffraction patterns show peaks with 2θ values: 26.92, 29.75, 30.77, 40.54, 47.53, 53.63, 57.08°. The phase ratio of NdCoO3/Nd2O3 after termolysis for the sample of CoNd(AA)5·2α,α'-dipy is ~ 68.9/31.1%; for the sample of [Сo2Nd2(C2O4)5·2Phen]·4Н2О is ~ 50/50%; for the sample of [Сo2Nd2(C4Н4O4)5·2Phen]·4Н2О is NdCoO3 ~ 100%. The average crystallites size of complex oxides was calculated using the Scherer formula. It has been showed that neodymium cobaltate has an average particle size of ~33 nm, regardless of the complex precursor from which it was formed during thermolysis.
The catalytic effect of neodymium cobaltates in the hydrogen peroxide decomposition reaction was studied. It was shown that all samples of complex oxides showed a quite high catalytic activity in the all of experiments in the hydrogen peroxide decomposition reactions. |
| publisher |
V.I.Vernadsky Institute of General and Inorganic Chemistry |
| publishDate |
2022 |
| url |
https://ucj.org.ua/index.php/journal/article/view/463 |
| work_keys_str_mv |
AT sliusarchukliudmyla synthesisofcomplexoxidesofcobaltneodymiumfromheterocomplexesandtheircatalyticactivityinthedecompositionofhydrogenperoxide AT zheleznovalidia synthesisofcomplexoxidesofcobaltneodymiumfromheterocomplexesandtheircatalyticactivityinthedecompositionofhydrogenperoxide AT kuleshovserhii synthesisofcomplexoxidesofcobaltneodymiumfromheterocomplexesandtheircatalyticactivityinthedecompositionofhydrogenperoxide AT rohovtsovoleksandr synthesisofcomplexoxidesofcobaltneodymiumfromheterocomplexesandtheircatalyticactivityinthedecompositionofhydrogenperoxide AT trunovaolena synthesisofcomplexoxidesofcobaltneodymiumfromheterocomplexesandtheircatalyticactivityinthedecompositionofhydrogenperoxide AT khomenkoborys synthesisofcomplexoxidesofcobaltneodymiumfromheterocomplexesandtheircatalyticactivityinthedecompositionofhydrogenperoxide |
| first_indexed |
2025-09-24T17:43:45Z |
| last_indexed |
2025-09-24T17:43:45Z |
| _version_ |
1849658122325458944 |