|
1
|
Shi H, Yuan H, Sun Y, Ma X, Li Z, Zhou D, Li Z, Shao X. Single Molecular Reaction of Water on a ZnO Surface. NANO LETTERS 2021; 21:9567-9572. [PMID: 34757758 DOI: 10.1021/acs.nanolett.1c03218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The dissociation of a single water molecule on a ZnO(101̅0) surface has been investigated at the atomic level by low temperature STM manipulation combined with DFT calculations. The positive pulses applied from the tip inject electrons into the system and break the bonding between water and the ZnO surface, thus leading to the hopping of water molecules. Negative pulses inject holes wherein the lower energy ones split the free O-H bond pointing out of the surface whereas the higher energy ones split the second O-H bond that is directed to the surface through hydrogen bonding. Moreover, the yielded proton and hydroxyl species present distinctly charged status through different reaction pathways, manifesting their unique impacts on tailoring the surface properties of the metal oxide.
Collapse
Affiliation(s)
- Hong Shi
- Department of Chemical Physics, CAS Key Laboratory of Urban Pollutant Conversion, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China
| | - Hao Yuan
- Hefei National Laboratory for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China
| | - Yuniu Sun
- Department of Chemical Physics, CAS Key Laboratory of Urban Pollutant Conversion, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China
| | - Xinbo Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China
| | - Zhe Li
- Department of Chemical Physics, CAS Key Laboratory of Urban Pollutant Conversion, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China
| | - Dandan Zhou
- Department of Chemical Physics, CAS Key Laboratory of Urban Pollutant Conversion, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China
| | - Zhenyu Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China
| | - Xiang Shao
- Department of Chemical Physics, CAS Key Laboratory of Urban Pollutant Conversion, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province 230026, China
| |
Collapse
|