Microwave-assisted synthesis of WS2 nanowires through tetrathiotungstate precursors
Tungsten disulfide (WS2) nanowires have been synthesized through a microwave-assisted chemical route that uses tungstic acid, elemental sulfur and monoethanolamine as starting reagents for obtaining a precursor solution of tetrathiotungstate ions. Acidification of the precursor solution yields amorp...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2008-01-01
|
| Series: | Science and Technology of Advanced Materials |
| Subjects: | |
| Online Access: | http://www.iop.org/EJ/abstract/1468-6996/9/4/045008 |
| _version_ | 1811192169970532352 |
|---|---|
| author | Pravas Kumar Panigrahi and Amita Pathak |
| author_facet | Pravas Kumar Panigrahi and Amita Pathak |
| author_sort | Pravas Kumar Panigrahi and Amita Pathak |
| collection | DOAJ |
| description | Tungsten disulfide (WS2) nanowires have been synthesized through a microwave-assisted chemical route that uses tungstic acid, elemental sulfur and monoethanolamine as starting reagents for obtaining a precursor solution of tetrathiotungstate ions. Acidification of the precursor solution yields amorphous precipitates, which lead to the formation of nanowires of WS2 with thickness of about 5–10 nm when heated at 750 °C under argon atmosphere for 1.5 h. Phase and the microstructure of the prepared powders have been investigated through x-ray powder diffraction and high-resolution transmission electron microscopy, respectively. Optical absorption of the WS2 powders reveals a red shift of the exciton bands compared to bulk WS2. |
| first_indexed | 2024-04-11T23:47:18Z |
| format | Article |
| id | doaj.art-206edd3089d04756848c8e603e63196c |
| institution | Directory Open Access Journal |
| issn | 1468-6996 1878-5514 |
| language | English |
| last_indexed | 2024-04-11T23:47:18Z |
| publishDate | 2008-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Science and Technology of Advanced Materials |
| spelling | doaj.art-206edd3089d04756848c8e603e63196c2022-12-22T03:56:35ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142008-01-0194045008Microwave-assisted synthesis of WS2 nanowires through tetrathiotungstate precursorsPravas Kumar Panigrahi and Amita PathakTungsten disulfide (WS2) nanowires have been synthesized through a microwave-assisted chemical route that uses tungstic acid, elemental sulfur and monoethanolamine as starting reagents for obtaining a precursor solution of tetrathiotungstate ions. Acidification of the precursor solution yields amorphous precipitates, which lead to the formation of nanowires of WS2 with thickness of about 5–10 nm when heated at 750 °C under argon atmosphere for 1.5 h. Phase and the microstructure of the prepared powders have been investigated through x-ray powder diffraction and high-resolution transmission electron microscopy, respectively. Optical absorption of the WS2 powders reveals a red shift of the exciton bands compared to bulk WS2.http://www.iop.org/EJ/abstract/1468-6996/9/4/045008tungsten disulfidemonoethanolaminemicrowave heatingnanowires |
| spellingShingle | Pravas Kumar Panigrahi and Amita Pathak Microwave-assisted synthesis of WS2 nanowires through tetrathiotungstate precursors Science and Technology of Advanced Materials tungsten disulfide monoethanolamine microwave heating nanowires |
| title | Microwave-assisted synthesis of WS2 nanowires through tetrathiotungstate precursors |
| title_full | Microwave-assisted synthesis of WS2 nanowires through tetrathiotungstate precursors |
| title_fullStr | Microwave-assisted synthesis of WS2 nanowires through tetrathiotungstate precursors |
| title_full_unstemmed | Microwave-assisted synthesis of WS2 nanowires through tetrathiotungstate precursors |
| title_short | Microwave-assisted synthesis of WS2 nanowires through tetrathiotungstate precursors |
| title_sort | microwave assisted synthesis of ws2 nanowires through tetrathiotungstate precursors |
| topic | tungsten disulfide monoethanolamine microwave heating nanowires |
| url | http://www.iop.org/EJ/abstract/1468-6996/9/4/045008 |
| work_keys_str_mv | AT pravaskumarpanigrahiandamitapathak microwaveassistedsynthesisofws2nanowiresthroughtetrathiotungstateprecursors |