Effective charge separation in site-isolated Pt-nanodot deposited PbTiO3 nanotube arrays for enhanced photoelectrochemical water splitting
| Autor: | Pramod H. Borse, Jum Suk Jang, Chae-Ryong Cho, Jong-Seong Bae, Ju Hun Kim, Hyun-Gyu Kim, Byoung-Seob Lee, Chang Won Ahn, Jang-Hee Yoon, Jae Young Kim, Jae Sung Lee |
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| Rok vydání: | 2018 |
| Předmět: |
Photocurrent
Nanotube Fabrication Materials science Process Chemistry and Technology Nanotechnology 02 engineering and technology Electron 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis Effective nuclear charge 0104 chemical sciences Water splitting Nanodot 0210 nano-technology General Environmental Science Visible spectrum |
| Zdroj: | Applied Catalysis B: Environmental. 224:804-809 |
| ISSN: | 0926-3373 |
| Popis: | Highly uniform, self-supported PbTiO3 nanotube arrays are fabricated on a transparent conducting glass by an all solution-based, hard-templating procedure. A new concept of site-isolation has been realized by Pt-sol infiltration only in the internal core of deposited nanotube arrays and thus physically separating electron and hole reaction sites on inside and external surface of the nanotubes, respectively. The effective charge separation by the site-isolated Pt-nanodot deposited PbTiO3 nanotube photoanode leads to greatly enhanced photocurrent generation and H2 evolution efficiencies relative to those of the particulate-type photoanode or PbTiO3 nanotube without Pt infiltration in photoelectrochemical water splitting under visible light. The physical site isolation through nano-engineering of the material fabrication is expected to offer an effective strategy for preparation of high-efficiency photoelectrochemical devices. |
| Databáze: | OpenAIRE |
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