Determination of molybdenum oxidation state on the mechanochemically treated MoO<sub>3</sub>
The molybdenum oxidation degree in the MoO3 samples after mechanochemical treatment in various media (air, water, ethanol) has been studied by titration, EPR and XANES methods. It has been shown that molybdenum reduction proceeds in all the media used and its degree is determined by powder loading (...
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| Format: | Article |
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Chuiko Institute of Surface Chemistry of NAS of Ukraine
2015-11-01
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| Series: | Хімія, фізика та технологія поверхні |
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| Online Access: | https://cpts.com.ua/index.php/cpts/article/view/351 |
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| author | N. S. Kopachevska A. K. Melnyk I. V. Bacherikova V. A. Zazhigalov K. Wieczorek-Ciurowa |
| author_facet | N. S. Kopachevska A. K. Melnyk I. V. Bacherikova V. A. Zazhigalov K. Wieczorek-Ciurowa |
| author_sort | N. S. Kopachevska |
| collection | DOAJ |
| description | The molybdenum oxidation degree in the MoO3 samples after mechanochemical treatment in various media (air, water, ethanol) has been studied by titration, EPR and XANES methods. It has been shown that molybdenum reduction proceeds in all the media used and its degree is determined by powder loading (rotation speed and time treatment) and medium nature. The XANES spectra demonstrate that MoO3 reduction leads to Mo5+ ions formation only. The maximal reduction degree is observed at treatment in ethanol. Existence of charged oxygen species located within Mo5+ environment was also shown. |
| format | Article |
| id | doaj-art-3b3a656059814fbaba28aa259fcb21fd |
| institution | DOAJ |
| issn | 2079-1704 2518-1238 |
| language | English |
| publishDate | 2015-11-01 |
| publisher | Chuiko Institute of Surface Chemistry of NAS of Ukraine |
| record_format | Article |
| series | Хімія, фізика та технологія поверхні |
| spelling | doaj-art-3b3a656059814fbaba28aa259fcb21fd2025-08-20T02:50:27ZengChuiko Institute of Surface Chemistry of NAS of UkraineХімія, фізика та технологія поверхні2079-17042518-12382015-11-016410.15407/hftp06.04.474Determination of molybdenum oxidation state on the mechanochemically treated MoO<sub>3</sub>N. S. Kopachevska0A. K. Melnyk1I. V. Bacherikova2V. A. Zazhigalov3K. Wieczorek-Ciurowa4Institute for Sorption and Problems of Endoecology of National Academy of Sciences of UkraineInstitute for Sorption and Problems of Endoecology of National Academy of Sciences of UkraineInstitute for Sorption and Problems of Endoecology of National Academy of Sciences of UkraineInstitute for Sorption and Problems of Endoecology of National Academy of Sciences of UkraineCracow University of TechnologyThe molybdenum oxidation degree in the MoO3 samples after mechanochemical treatment in various media (air, water, ethanol) has been studied by titration, EPR and XANES methods. It has been shown that molybdenum reduction proceeds in all the media used and its degree is determined by powder loading (rotation speed and time treatment) and medium nature. The XANES spectra demonstrate that MoO3 reduction leads to Mo5+ ions formation only. The maximal reduction degree is observed at treatment in ethanol. Existence of charged oxygen species located within Mo5+ environment was also shown.https://cpts.com.ua/index.php/cpts/article/view/351mechanochemical treatmentoxidation degreeMoO3EPR spectra |
| spellingShingle | N. S. Kopachevska A. K. Melnyk I. V. Bacherikova V. A. Zazhigalov K. Wieczorek-Ciurowa Determination of molybdenum oxidation state on the mechanochemically treated MoO<sub>3</sub> Хімія, фізика та технологія поверхні mechanochemical treatment oxidation degree MoO3 EPR spectra |
| title | Determination of molybdenum oxidation state on the mechanochemically treated MoO<sub>3</sub> |
| title_full | Determination of molybdenum oxidation state on the mechanochemically treated MoO<sub>3</sub> |
| title_fullStr | Determination of molybdenum oxidation state on the mechanochemically treated MoO<sub>3</sub> |
| title_full_unstemmed | Determination of molybdenum oxidation state on the mechanochemically treated MoO<sub>3</sub> |
| title_short | Determination of molybdenum oxidation state on the mechanochemically treated MoO<sub>3</sub> |
| title_sort | determination of molybdenum oxidation state on the mechanochemically treated moo sub 3 sub |
| topic | mechanochemical treatment oxidation degree MoO3 EPR spectra |
| url | https://cpts.com.ua/index.php/cpts/article/view/351 |
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