期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 6, 期 9, 页码 1624-1627出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.5b00429
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资金
- National Science Foundation Catalaysis program [CHE-1362616]
- FAS Division of Science, Research Computing Group at Harvard University
- National Science Foundation [ACI-1053575]
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1362616] Funding Source: National Science Foundation
Light-driven chemical reactions on semiconductor surfaces have potential for addressing energy and pollution needs through efficient chemical synthesis; however, little is known about the time evolution of excited states that determine reaction pathways. Here, we study the photo-oxidation of methoxy (CH3O) derived from methanol on the rutile TiO2(110) surface using ab initio simulations to create a molecular movie of the process. The movie sequence reveals a wealth of information on the reaction intermediates, time scales, and energetics. The reaction is broken in three stages, described by Lewis structures directly derived from the hole wave functions that lead to the concept of photoinduced C-H acidity. The insights gained from this work can be generalized to a set of simple rules that can predict the efficiency of photo-oxidation reactions in reactant-catalyst pairs.
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