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Controlled modification of nanoporous gold : Chemical vapor deposition of TiO2 in ultrahigh vacuum
- Article/chapterEnglish2013
Publisher, publication year, extent ...
- Elsevier BV,2013
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:uu-206545
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-206545URI
- https://doi.org/10.1016/j.apsusc.2013.05.148DOI
Supplementary language notes
- Language:English
- Summary in:English
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Notes
- TiO2 has been deposited in the first 400 nm of a nanoporous gold (NPG) structure using metal organic chemical vapor deposition with titanium-tetraisopropoxide as single source precursor in ultra high vacuum. The NPG has been pretreated by ozone to clean and stabilize the structure for deposition. The deposited oxide stabilizes the porous structure, otherwise prone to coarsening at elevated temperatures, up to 300 degrees C. The study combines the controlled sample preparation with a functional test of the prepared catalyst under real conditions in a continuous gas flow reactor. The catalytic activity of the loaded NPG at 60 degrees C for CO oxidation is found to be superior to unloaded as-prepared NPG.
Subject headings and genre
- Nanoporous gold
- Titania
- Chemical vapor deposition
- Heterogeneous catalysis
- Ultrahigh vacuum
Added entries (persons, corporate bodies, meetings, titles ...)
- Ragazzon, DavideUppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)davra358 (author)
- Walle, L. E. (author)
- Farstad, M. H. (author)
- Wichmann, A. (author)
- Baeumer, M. (author)
- Borg, A. (author)
- Sandell, AndersUppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)andesand (author)
- Uppsala universitetMolekyl- och kondenserade materiens fysik (creator_code:org_t)
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- In:Applied Surface Science: Elsevier BV282, s. 439-4430169-43321873-5584
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