Direct Visualization of Oxygen Reaction with Paired Hydroxyl on TiO2(110) Surface at 78 K by Atomic Force Microscopy
- Huan Fei Wen
Huan Fei WenDepartment of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, JapanMore by Huan Fei Wen
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- Quanzhen Zhang
Quanzhen ZhangDepartment of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, JapanMore by Quanzhen Zhang
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- Yuuki Adachi
Yuuki AdachiDepartment of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, JapanMore by Yuuki Adachi
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- Masato Miyazaki
Masato MiyazakiDepartment of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, JapanMore by Masato Miyazaki
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- Yoshitaka Naitoh
Yoshitaka NaitohDepartment of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, JapanMore by Yoshitaka Naitoh
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- Yan Jun Li*
Yan Jun Li*E-mail: [email protected]Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, JapanMore by Yan Jun Li
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- Yasuhiro Sugawara
Yasuhiro SugawaraDepartment of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, JapanMore by Yasuhiro Sugawara
Abstract
The hydroxyl defects on rutile TiO2 surface play an important role in surface chemical reactions and understanding the catalytic reactions due to its excess electrons. In this work, the reaction behavior of oxygen molecule with paired hydroxyl defects on a rutile TiO2(110)-(1 × 1) surface was observed at 78 K with the atomic resolution by atomic force microscopy. The high reactivity of paired OH with O2 is attributed to the asymmetric spatial distribution of its excess electrons, and the reaction sites occupy a high distribution of excess electrons. The effect of tip to the surface reactions is discussed, and atomic contrast of their reaction product 2OHt is associated with the tip–sample distance. The present study is expected to provide some insights into catalytic reactions on oxide surface.
Cited By
This article is cited by 6 publications.
- Yuuki Adachi, Yasuhiro Sugawara, Yan Jun Li. Probing CO on a rutile TiO2(110) surface using atomic force microscopy and Kelvin probe force microscopy. Nano Research 2022, 15 (3) , 1909-1915. https://doi.org/10.1007/s12274-021-3809-x
- Yuuki Adachi, Hongqian Sang, Yasuhiro Sugawara, Yan Jun Li. Single hydrogen atom manipulation for reversible deprotonation of water on a rutile TiO2 (110) surface. Communications Chemistry 2021, 4 (1) https://doi.org/10.1038/s42004-020-00444-4
- Huan Fei Wen, Yasuhiro Sugawara, Yan Jun Li. Exploring the nature of hydrogen of Rutile TiO2(110) at 78 K. Surfaces and Interfaces 2021, 26 , 101339. https://doi.org/10.1016/j.surfin.2021.101339
- Huan Fei Wen, Hongqian Sang, Yasuhiro Sugawara, Yan Jun Li. Dynamic behavior of OH and its atomic contrast with O adatom on the Ti site of TiO2(110) at 78 K by atomic force microscopy imaging. Applied Physics Letters 2020, 117 (5) https://doi.org/10.1063/5.0016657
- Huan Fei Wen, Yasuhiro Sugawara, Yan Jun Li. Multi-Channel Exploration of O Adatom on TiO2(110) Surface by Scanning Probe Microscopy. Nanomaterials 2020, 10 (8) , 1506. https://doi.org/10.3390/nano10081506
- Huan Fei Wen, Quanzhen Zhang, Yuuki Adachi, Masato Miyazaki, Yasuhiro Sugawara, Yan Jun Li. Contrast inversion of O adatom on rutile TiO2(1 1 0)-(1 × 1) surface by atomic force microscopy imaging. Applied Surface Science 2020, 505 , 144623. https://doi.org/10.1016/j.apsusc.2019.144623