Controlling particle size and photoelectrochemical properties of nanostructured WO3 with surfactants
Tungsten trioxide films were prepared by sol–gel method using peroxotungstic acid (PTA) as the precursor sol with Triton X-n (with n = 45, 100, 305, 405, 705) surfactants. Physical (morphology, film thickness, surface roughness and crystallite, grain and particle size) and photo-electrochemical (PEC...
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| Format: | Journal Article |
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Elsevier BV North-Holland
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/38072 |
| _version_ | 1848755220161495040 |
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| author | Memar, Amir Phan, Chi Tade, Moses |
| author_facet | Memar, Amir Phan, Chi Tade, Moses |
| author_sort | Memar, Amir |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Tungsten trioxide films were prepared by sol–gel method using peroxotungstic acid (PTA) as the precursor sol with Triton X-n (with n = 45, 100, 305, 405, 705) surfactants. Physical (morphology, film thickness, surface roughness and crystallite, grain and particle size) and photo-electrochemical (PEC) properties of the synthesized films were characterized. The physical characterization showed a clear correlation with surfactant size. Most importantly, the correlation between grain size and surfactant size followed a monotonic equation. Similarly, the PEC properties were strongly correlated to surfactant size. The best performance was observed with the smallest surfactants. The highest photocurrent density of 2.10 mA cm−2 at 1.6 V (vs. RHE), was produced by Triton X-45. Results presented a simple method to control the grain size and performance of WO3 semiconductor. |
| first_indexed | 2025-11-14T08:52:50Z |
| format | Journal Article |
| id | curtin-20.500.11937-38072 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:52:50Z |
| publishDate | 2014 |
| publisher | Elsevier BV North-Holland |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-380722017-09-13T14:14:26Z Controlling particle size and photoelectrochemical properties of nanostructured WO3 with surfactants Memar, Amir Phan, Chi Tade, Moses WO3 nanostructure Surfactant Sol–gel method Tungsten trioxide films were prepared by sol–gel method using peroxotungstic acid (PTA) as the precursor sol with Triton X-n (with n = 45, 100, 305, 405, 705) surfactants. Physical (morphology, film thickness, surface roughness and crystallite, grain and particle size) and photo-electrochemical (PEC) properties of the synthesized films were characterized. The physical characterization showed a clear correlation with surfactant size. Most importantly, the correlation between grain size and surfactant size followed a monotonic equation. Similarly, the PEC properties were strongly correlated to surfactant size. The best performance was observed with the smallest surfactants. The highest photocurrent density of 2.10 mA cm−2 at 1.6 V (vs. RHE), was produced by Triton X-45. Results presented a simple method to control the grain size and performance of WO3 semiconductor. 2014 Journal Article http://hdl.handle.net/20.500.11937/38072 10.1016/j.apsusc.2014.03.194 Elsevier BV North-Holland restricted |
| spellingShingle | WO3 nanostructure Surfactant Sol–gel method Memar, Amir Phan, Chi Tade, Moses Controlling particle size and photoelectrochemical properties of nanostructured WO3 with surfactants |
| title | Controlling particle size and photoelectrochemical properties of nanostructured WO3 with surfactants |
| title_full | Controlling particle size and photoelectrochemical properties of nanostructured WO3 with surfactants |
| title_fullStr | Controlling particle size and photoelectrochemical properties of nanostructured WO3 with surfactants |
| title_full_unstemmed | Controlling particle size and photoelectrochemical properties of nanostructured WO3 with surfactants |
| title_short | Controlling particle size and photoelectrochemical properties of nanostructured WO3 with surfactants |
| title_sort | controlling particle size and photoelectrochemical properties of nanostructured wo3 with surfactants |
| topic | WO3 nanostructure Surfactant Sol–gel method |
| url | http://hdl.handle.net/20.500.11937/38072 |