Publication Date:
2012-01-24
Description:
Understanding how molecules can restructure the surfaces of heterogeneous catalysts under reaction conditions requires methods that can visualize atoms in real space and time. We applied a newly developed aberration-corrected environmental transmission electron microscopy to show that adsorbed carbon monoxide (CO) molecules caused the {100} facets of a gold nanoparticle to reconstruct during CO oxidation at room temperature. The CO molecules adsorbed at the on-top sites of gold atoms in the reconstructed surface, and the energetic favorability of this reconstructed structure was confirmed by ab initio calculations and image simulations. This atomic-scale visualizing method can be applied to help elucidate reaction mechanisms in heterogeneous catalysis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshida, Hideto -- Kuwauchi, Yasufumi -- Jinschek, Joerg R -- Sun, Keju -- Tanaka, Shingo -- Kohyama, Masanori -- Shimada, Satoshi -- Haruta, Masatake -- Takeda, Seiji -- New York, N.Y. -- Science. 2012 Jan 20;335(6066):317-9. doi: 10.1126/science.1213194.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22267808" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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