التفاصيل البيبلوغرافية
| العنوان: |
Porous single crystalline-like titanium dioxide monolith with enhanced photoelectrochemical performance |
| المؤلفون: |
Kaipeng Liu, Fangyuan Cheng, Yunfei Luo, Ling Liu, Changtao Wang, Kui Xie, Xiangang Luo |
| المصدر: |
Frontiers in Materials, Vol 10 (2023) |
| بيانات النشر: |
Frontiers Media S.A., 2023. |
| سنة النشر: |
2023 |
| المجموعة: |
LCC:Technology |
| مصطلحات موضوعية: |
porous crystal, titanium dioxide, magneli phase, photoelectricity, catalysis, Technology |
| الوصف: |
Macro-sized porous single crystalline-like (PSC-like) TiO2 is endowed with unique structural advantages due to its structural consistency and porosity in a large area, which would significantly enhance its photoelectrochemical function. However, there are significant technical challenges in the growth of porous single crystalline-like monoliths. The consistency of structure dominates the structure so that the grain boundary is reduced to the minimum, which is in contradiction with the three-dimensional percolation structure. Here we report a lattice reconstruction strategy based on solid-solid transformation to grow porous single crystal-like anatase TiO2 dominated by (200) and (101) facets at 2 cm scale. In comparison with the traditional definition of porous single crystal, it has two different lattice orientations, but still has good photoelectrochemical properties. The band gap engineering introduces Ti3+ gap into the lattice to generate TinO2n−1 with Magneli phase, limiting the created active structure to the lattice with two-dimensional surface, which would open a new avenue to create highly active surfaces to capture photons and transport electrons stably. The PSC-like TinO2n−1 provides enhanced exciton lifetime (3–5 ns) as a photocatalytic catalyst and shows significant visible light absorption. The independent PSC-like TinO2n−1 delivers high photocurrent of 1.8–5.5 mA · cm−2 at room temperature and does not decay for 10 h. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2296-8016 |
| Relation: |
https://www.frontiersin.org/articles/10.3389/fmats.2023.1177093/full; https://doaj.org/toc/2296-8016 |
| DOI: |
10.3389/fmats.2023.1177093 |
| URL الوصول: |
https://doaj.org/article/bf886e806e014ee88be9e89a443a86ab |
| رقم الانضمام: |
edsdoj.bf886e806e014ee88be9e89a443a86ab |
| قاعدة البيانات: |
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