XPS/STM Study of Model Bimetallic Pd–Au/HOPG Catalysts Full article
Journal |
Applied Surface Science
ISSN: 0169-4332 |
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Output data | Year: 2016, Volume: 367, Pages: 214-221 Pages count : 8 DOI: 10.1016/j.apsusc.2016.01.173 | ||||
Tags | Alloyed particles, Model catalysts, Pd-Au bimetallic system, Scanning tunneling microscopy, X-ray photoelectron spectroscopy | ||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Science Foundation | 14-23-00146 |
Abstract:
The preparation of model bimetallic Pd–Au/HOPG catalysts has been investigated using scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS) techniques. Initially, model “core–shell” type Pd–Au/HOPG catalysts with similar particle size distribution (5–8 nm), but with different densities of particle locations on the HOPG surface and Pd/Au atomic ratios are prepared. Further, their thermal stability is studied within a temperature range of 50–500 °C at UHV conditions. It has been shown that annealing the model catalysts at a temperature range of 300–400 °C leads to formation of Pd–Au alloyed particles. Enhancement of heating temperature up to 500 °C results in sintering of bimetallic nanoparticles. Contribution of different parameters controlling the properties of Pd–Au alloyed particles has been discussed
Cite:
Bukhtiyarov A.V.
, Prosvirin I.P.
, Bukhtiyarov V.I.
XPS/STM Study of Model Bimetallic Pd–Au/HOPG Catalysts
Applied Surface Science. 2016. V.367. P.214-221. DOI: 10.1016/j.apsusc.2016.01.173 WOS Scopus РИНЦ
XPS/STM Study of Model Bimetallic Pd–Au/HOPG Catalysts
Applied Surface Science. 2016. V.367. P.214-221. DOI: 10.1016/j.apsusc.2016.01.173 WOS Scopus РИНЦ
Dates:
Submitted: | Oct 14, 2015 |
Accepted: | Jan 20, 2016 |
Published online: | Jan 21, 2016 |
Published print: | Mar 30, 2016 |
Identifiers:
Web of science | WOS:000372519300028 |
Scopus | 2-s2.0-84959352141 |
Elibrary | 26971345 |
Chemical Abstracts | 2016:132248 |
Chemical Abstracts (print) | 164:308754 |
OpenAlex | W2295722327 |