Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure
The effect of TiO2 layer applied to the conventional Fe2O3/FTO photoanode to improve the photoelectrochemical performance was assessed from the viewpoint of the microstructure and energy band structure. Regardless of the location of the TiO2 layer in the photoanodes, that is, Fe2O3/TiO2/FTO or TiO2/...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/723201 |
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| author | Eul Noh Kyung-Jong Noh Kang-Seop Yun Bo-Ra Kim Hee-June Jeong Hyo-Jin Oh Sang-Chul Jung Woo-Seung Kang Sun-Jae Kim |
| author_facet | Eul Noh Kyung-Jong Noh Kang-Seop Yun Bo-Ra Kim Hee-June Jeong Hyo-Jin Oh Sang-Chul Jung Woo-Seung Kang Sun-Jae Kim |
| author_sort | Eul Noh |
| collection | DOAJ |
| description | The effect of TiO2 layer applied to the conventional Fe2O3/FTO photoanode to improve the photoelectrochemical performance was assessed from the viewpoint of the microstructure and energy band structure. Regardless of the location of the TiO2 layer in the photoanodes, that is, Fe2O3/TiO2/FTO or TiO2/Fe2O3/FTO, high performance was obtained when α-Fe2O3 and H-TiNT/anatase-TiO2 phases existed in the constituent Fe2O3 and TiO2 layers after optimized heat treatments. The presence of the Fe2O3 nanoparticles with high uniformity in the each layer of the Fe2O3/TiO2/FTO photoanode achieved by a simple dipping process seemed to positively affect the performance improvement by modifying the energy band structure to a more favorable one for efficient electrons transfer. Our current study suggests that the application of the TiO2 interlayer, together with α-Fe2O3 nanoparticles present in the each constituent layers, could significantly contribute to the performance improvement of the conventional Fe2O3 photoanode. |
| format | Article |
| id | doaj-art-6493bff9e3a44c5a848be045d50b26f2 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-6493bff9e3a44c5a848be045d50b26f22025-02-03T06:06:24ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/723201723201Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band StructureEul Noh0Kyung-Jong Noh1Kang-Seop Yun2Bo-Ra Kim3Hee-June Jeong4Hyo-Jin Oh5Sang-Chul Jung6Woo-Seung Kang7Sun-Jae Kim8Institute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of KoreaInstitute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of KoreaInstitute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of KoreaInstitute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of KoreaInstitute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of KoreaInstitute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of KoreaDepartment of Environmental Engineering, Sunchon National University, Suncheon, Jeonnam 540-742, Republic of KoreaDepartment of Metallurgical & Materials Engineering, Inha Technical College, Incheon 402-752, Republic of KoreaInstitute/Faculty of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of KoreaThe effect of TiO2 layer applied to the conventional Fe2O3/FTO photoanode to improve the photoelectrochemical performance was assessed from the viewpoint of the microstructure and energy band structure. Regardless of the location of the TiO2 layer in the photoanodes, that is, Fe2O3/TiO2/FTO or TiO2/Fe2O3/FTO, high performance was obtained when α-Fe2O3 and H-TiNT/anatase-TiO2 phases existed in the constituent Fe2O3 and TiO2 layers after optimized heat treatments. The presence of the Fe2O3 nanoparticles with high uniformity in the each layer of the Fe2O3/TiO2/FTO photoanode achieved by a simple dipping process seemed to positively affect the performance improvement by modifying the energy band structure to a more favorable one for efficient electrons transfer. Our current study suggests that the application of the TiO2 interlayer, together with α-Fe2O3 nanoparticles present in the each constituent layers, could significantly contribute to the performance improvement of the conventional Fe2O3 photoanode.http://dx.doi.org/10.1155/2013/723201 |
| spellingShingle | Eul Noh Kyung-Jong Noh Kang-Seop Yun Bo-Ra Kim Hee-June Jeong Hyo-Jin Oh Sang-Chul Jung Woo-Seung Kang Sun-Jae Kim Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure The Scientific World Journal |
| title | Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure |
| title_full | Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure |
| title_fullStr | Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure |
| title_full_unstemmed | Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure |
| title_short | Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure |
| title_sort | enhanced water splitting by fe2o3 tio2 fto photoanode with modified energy band structure |
| url | http://dx.doi.org/10.1155/2013/723201 |
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