Preparation method of tungsten oxide and metallic tungsten nano-powders using degreased cotton
A simple method for producing nanopowders of tungsten oxides and metallic tungsten using degreased cotton is proposed. Ammonium tungstate NH4W12O40 was used as a precursor. A medical cotton wool was chosen for experiment. Structural characterizations of nanopowders were performed using X-ray diffra...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Al-Farabi Kazakh National University
2018-07-01
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| Series: | Physical Sciences and Technology |
| Online Access: | http://phst/index.php/journal/article/view/133 |
| _version_ | 1797645278334943232 |
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| author | A.A. Marhabaeva Zh.K. Kalkozova Ye.S. Mandybayev A.A. Azatkaliev Kh.A. Abdullin |
| author_facet | A.A. Marhabaeva Zh.K. Kalkozova Ye.S. Mandybayev A.A. Azatkaliev Kh.A. Abdullin |
| author_sort | A.A. Marhabaeva |
| collection | DOAJ |
| description |
A simple method for producing nanopowders of tungsten oxides and metallic tungsten using degreased
cotton is proposed. Ammonium tungstate NH4W12O40 was used as a precursor. A medical cotton wool
was chosen for experiment. Structural characterizations of nanopowders were performed using X-ray
diffraction (XRD) and Raman spectroscopy. Raman Spectra was obtained by NTegra Spectra (NT-MDT),
where the light source is blue laser ̴ 473 nm. Analyses of XRD spectra showed that nanopowders have a
monoclinic structure. The morphology of synthesized nanopowders was studied using scanning electron
microscopy (SEM). The size of nanocrystals was estimated with Scherrer’s formula. The effect of
annealing temperature on nanoparticle sizes was investigated. The Raman spectra of the obtained samples
were studied as a function of the synthesis temperature. In the Raman spectra, broading and red shift of
the Raman bands with decreasing size are observed. The most pronounced Raman peaks are assigned to
the characteristic vibrations according to the available structural data.
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| first_indexed | 2024-03-11T14:44:03Z |
| format | Article |
| id | doaj.art-264ad6fcfe784896a7dbc52b4197c4ac |
| institution | Directory Open Access Journal |
| issn | 2409-6121 |
| language | English |
| last_indexed | 2024-03-11T14:44:03Z |
| publishDate | 2018-07-01 |
| publisher | Al-Farabi Kazakh National University |
| record_format | Article |
| series | Physical Sciences and Technology |
| spelling | doaj.art-264ad6fcfe784896a7dbc52b4197c4ac2023-10-30T13:11:15ZengAl-Farabi Kazakh National UniversityPhysical Sciences and Technology2409-61212018-07-0142Preparation method of tungsten oxide and metallic tungsten nano-powders using degreased cottonA.A. MarhabaevaZh.K. KalkozovaYe.S. MandybayevA.A. AzatkalievKh.A. Abdullin A simple method for producing nanopowders of tungsten oxides and metallic tungsten using degreased cotton is proposed. Ammonium tungstate NH4W12O40 was used as a precursor. A medical cotton wool was chosen for experiment. Structural characterizations of nanopowders were performed using X-ray diffraction (XRD) and Raman spectroscopy. Raman Spectra was obtained by NTegra Spectra (NT-MDT), where the light source is blue laser ̴ 473 nm. Analyses of XRD spectra showed that nanopowders have a monoclinic structure. The morphology of synthesized nanopowders was studied using scanning electron microscopy (SEM). The size of nanocrystals was estimated with Scherrer’s formula. The effect of annealing temperature on nanoparticle sizes was investigated. The Raman spectra of the obtained samples were studied as a function of the synthesis temperature. In the Raman spectra, broading and red shift of the Raman bands with decreasing size are observed. The most pronounced Raman peaks are assigned to the characteristic vibrations according to the available structural data. http://phst/index.php/journal/article/view/133 |
| spellingShingle | A.A. Marhabaeva Zh.K. Kalkozova Ye.S. Mandybayev A.A. Azatkaliev Kh.A. Abdullin Preparation method of tungsten oxide and metallic tungsten nano-powders using degreased cotton Physical Sciences and Technology |
| title | Preparation method of tungsten oxide and metallic tungsten nano-powders using degreased cotton |
| title_full | Preparation method of tungsten oxide and metallic tungsten nano-powders using degreased cotton |
| title_fullStr | Preparation method of tungsten oxide and metallic tungsten nano-powders using degreased cotton |
| title_full_unstemmed | Preparation method of tungsten oxide and metallic tungsten nano-powders using degreased cotton |
| title_short | Preparation method of tungsten oxide and metallic tungsten nano-powders using degreased cotton |
| title_sort | preparation method of tungsten oxide and metallic tungsten nano powders using degreased cotton |
| url | http://phst/index.php/journal/article/view/133 |
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