Journal
NANO LETTERS
Volume 9, Issue 5, Pages 2167-2171Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl900809u
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Funding
- Office of Science, Office of Basic Energy Sciences, Materials Sciences and Engineering
- Chemical Sciences
- Office of Advanced Scientific Computing Research
- Biosciences Division of the U.S. Department of Energy [DE-AC02-05CH11231]
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The atomic-scale restructuring of hex-Pt(100) induced by carbon monoxide with a wide pressure range was studied with a newly designed chamber-in-chamber high-pressure STM and theoretical calculations. Both experimental and DFT calculation results show that CO molecules are bound to Pt nanoclusters; through a tilted on-top configuration with a separation of similar to 3.7-4.1 angstrom. The phenomenon of restructuring of metal catalyst surfaces induced by adsorption and, in particular, the formation of small metallic clusters suggests the importance of studying structures of catalyst surfaces under high-pressure conditions for understanding catalytic mechanisms.
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