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Imaging chemical reactions one molecule at a time


Novotny, Z; Zhang, Z; Dohnálek, Z (2018). Imaging chemical reactions one molecule at a time. In: Wandelt, Klaus. Encyclopedia of interfacial chemistry : surface science and electrochemistry. Amsterdam: Elsevier, 220-240.

Abstract

In this article, we focus on demonstrating the utility of scanning probe methods in the imaging of chemical reactions. We first highlight the utility of different imaging methods and highlight their advantages and drawbacks. Subsequently, we select a number of examples to illustrate different surface processes including adsorption, dissociation, diffusion and rotation of adsorbed molecules, formation of reaction intermediates, and conclude with complex reactions. In these examples, we mainly focus on the STM, which is most extensively employed as a method of choice. To limit the complexity of the article we have selected only a few systems for the discussion. In particular, elemental steps in the reactions of water, alcohols, and diols on TiO2(110) surface are utilized to illustrate the power of imaging techniques in our understanding of surface chemistry. We also provide a brief outlook on both current and future challenges in this exciting area of research.

Abstract

In this article, we focus on demonstrating the utility of scanning probe methods in the imaging of chemical reactions. We first highlight the utility of different imaging methods and highlight their advantages and drawbacks. Subsequently, we select a number of examples to illustrate different surface processes including adsorption, dissociation, diffusion and rotation of adsorbed molecules, formation of reaction intermediates, and conclude with complex reactions. In these examples, we mainly focus on the STM, which is most extensively employed as a method of choice. To limit the complexity of the article we have selected only a few systems for the discussion. In particular, elemental steps in the reactions of water, alcohols, and diols on TiO2(110) surface are utilized to illustrate the power of imaging techniques in our understanding of surface chemistry. We also provide a brief outlook on both current and future challenges in this exciting area of research.

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Additional indexing

Item Type:Book Section, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Health Sciences > Medicine (miscellaneous)
Uncontrolled Keywords:Adsorbate imaging, Adsorption, Atomic force microscopy, Diffusion, Elemental reaction steps, Reaction intermediates, Reaction mechanism, Scanning tunneling spectroscopies, Surface dynamics, Surface reactions, Titanium dioxide
Language:English
Date:2018
Deposited On:12 Dec 2017 17:04
Last Modified:13 May 2020 21:59
Publisher:Elsevier
ISBN:978-0-12-809894-3
Additional Information:ISBN: 978-0-12-809894-3 (electronic bk.) ISBN: 978-0-12-809739-7 (set)
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/B978-0-12-409547-2.12844-6

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Content: Accepted Version
Language: English
Filetype: PDF - Registered users only until 1 December 2020
Size: 6MB
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Embargo till: 2020-12-01
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