Elucidating the facet-dependent hydrogenation mechanism of black-TiO <sub>2</sub> through <i>in situ</i> characterization
<i>In situ</i> monitoring reveals facet-dependent hydrogenation kinetics of TiO<sub>2</sub> nanocrystals by a diamond anvil cell: (100) > (101) > (001). The differences of the hydrogenation rate stem from anisotropic diffusion of oxygen vacancies (V<sub>O</sub>). V<sub>O</sub> introduction enhances electron transport and photoconductivity, demonstrating that surface termination governs the reaction dynamics.
Authors
- Kejun Bu (ORCID: https://orcid.org/0000-0002-1466-2764)
- Bingyan Liu (ORCID: https://orcid.org/0000-0001-9188-3344)
- Jiabing Luo
- Yiming Wang (ORCID: https://orcid.org/0000-0002-1234-4578)
- Songhao Guo (ORCID: https://orcid.org/0000-0003-0570-0164)
- Ting Duan (ORCID: https://orcid.org/0000-0002-5153-4630)
- Mei Li (ORCID: https://orcid.org/0000-0001-7892-6688)
- Xujie Lü (ORCID: https://orcid.org/0000-0001-8402-7160)
- Jun Zhang (ORCID: https://orcid.org/0000-0002-7068-5135)
- Hongliang Dong (ORCID: https://orcid.org/0000-0001-6796-0389)
Institutions
- Fudan University (CN)
- Center for High Pressure Science and Technology Advanced Research (CN)
- China University of Petroleum, East China (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc05125h
- Primary Topic
- TiO2 Photocatalysis and Solar Cells
- Type
- article
- Field-Weighted Citation Impact
- 0.00