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Effect of Coadsorbe...
Effect of Coadsorbed Sulfur on the Dehydrogenation of Naphthalene on Ni(111)
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- Hohmann, Lea (author)
- KTH,Processteknologi
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- Marks, Kess, 1987- (author)
- KTH,Material- och nanofysik
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- Chien, Tzu-En (author)
- KTH,Processteknologi
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- Öström, Henrik, 1975- (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, Fysikum, S-10691 Stockholm, Sweden.
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- Hansson, Tony, 1965- (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, Fysikum, S-10691 Stockholm, Sweden.
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- Muntwiler, Matthias (author)
- Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
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- Engvall, Klas (author)
- KTH,Processteknologi
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- Göthelid, Mats (author)
- KTH,Material- och nanofysik
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- Harding, Dan James (author)
- KTH,Processteknologi
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(creator_code:org_t)
- American Chemical Society (ACS), 2023
- 2023
- English.
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In: The Journal of Physical Chemistry C. - : American Chemical Society (ACS). - 1932-7447 .- 1932-7455. ; 128:1, s. 67-76
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https://urn.kb.se/re...
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Abstract
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- There are several difficulties when experimentally determined reaction mechanisms are applied from model systems to real catalysis. Besides the infamous pressure and material gaps, it is sometimes necessary to consider impurities in the real reactant feedstock that can act as promoters or catalyst poisons and alter the reaction path. In this study, the effect of sulfur on the dehydrogenation of naphthalene on Ni(111) is investigated by using X-ray photoelectron spectroscopy and scanning tunneling microscopy. Sulfur induces a (5 root 3 x 2) surface reconstruction, as previously reported in the literature. The sulfur does not have a strong effect on the dehydrogenation temperature of naphthalene. However, the presence of sulfur leads to a preferred formation of carbidic over graphitic carbon and a strong inhibition of carbon diffusion into the nickel bulk, which is one of the steps of destructive whisker carbon formation described in the catalysis literature.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Hohmann, Lea
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Marks, Kess, 198 ...
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Chien, Tzu-En
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Öström, Henrik, ...
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Hansson, Tony, 1 ...
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Muntwiler, Matth ...
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Engvall, Klas
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Göthelid, Mats
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Harding, Dan Jam ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
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The Journal of P ...
- By the university
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Royal Institute of Technology
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Stockholm University