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Prospects for the e...
Prospects for the expansion of standing wave ambient pressure photoemission spectroscopy to reactions at elevated temperatures
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- Karslloǧlu, Osman (author)
- Lawrence Berkeley National Laboratory
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- Trotochaud, Lena (author)
- Duke University
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- Salmassi, Farhad (author)
- Lawrence Berkeley National Laboratory
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- Gullikson, Eric M. (author)
- Lawrence Berkeley National Laboratory
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- Shavorskiy, Andrey (author)
- Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
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- Nemšák, Slavomir (author)
- Advanced Light Source, Berkeley
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- Bluhm, Hendrik (author)
- Fritz Haber Institute of the Max Planck Society,Advanced Light Source, Berkeley,Lawrence Berkeley National Laboratory
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(creator_code:org_t)
- American Vacuum Society, 2022
- 2022
- English.
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In: Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films. - : American Vacuum Society. - 0734-2101 .- 1520-8559. ; 40:1
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Abstract
Subject headings
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- Standing wave ambient pressure photoemission spectroscopy (SWAPPS) is a promising method to investigate chemical and potential gradients across solid-vapor and solid-liquid interfaces under close-to-realistic environmental conditions, far away from high vacuum. Until now, these investigations have been performed only near room temperature, but for a wide range of interfacial processes, chief among them being heterogeneous catalysis, measurements at elevated temperatures are required. One concern in these investigations is the temperature stability of the multilayer mirrors, which generate the standing wave field. At elevated temperatures, degradation of the multilayer mirror due to, for example, interdiffusion between the adjacent layers, decreases the modulation of the standing wave field, thus rendering SWAPPS experiments much harder to perform. Here, we show that multilayer mirrors consisting of alternate B4C and W layers are stable at temperatures exceeding 600 °C and are, thus, promising candidates for future studies of surface and subsurface species in heterogeneous catalytic reactions using SWAPPS.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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