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The Structure of Catalytically Active Gold on Titania
Abstract
The high catalytic activity of gold clusters on oxides has been attributed to structural effects (including particle thickness and shape and metal oxidation state), as well as to support effects. We have created well-ordered gold mono-layers and bilayers that completely wet (cover) the oxide support, thus eliminating particle shape and direct support effects. High-resolution electron energy loss spectroscopy and carbon monoxide adsorption confirm that the gold atoms are bonded to titanium atoms. Kinetic measurements for the catalytic oxidation of carbon monoxide show that the gold bilayer structure is significantly more active (by more than an order of magnitude) than the monolayer.
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Cited by
Single-atom catalysis of CO oxidation using Pt1/FeOx
Qiao, B., Wang, A., Yang, X., Allard, L. F., Jiang, Z., Cui, Y., Liu, J., Li, J., & Zhang, T. (2011) · Nature Chemistry · doi:10.1038/nchem.1095 · Cited by 7,526
Hashmi, A. S. K., & Hutchings, G. J. (2006) · Angewandte Chemie International Edition · doi:10.1002/anie.200602454 · Cited by 3,423
Identification of Active Gold Nanoclusters on Iron Oxide Supports for CO Oxidation
Herzing, A. A., Kiely, C. J., Carley, A. F., Landon, P., & Hutchings, G. J. (2008) · Science · doi:10.1126/science.1159639 · Cited by 1,530
Catalysis by Supported Single Metal Atoms
Liu, J. (2017) · ACS Catalysis · doi:10.1021/acscatal.6b01534 · Cited by 1,331
Titanium Dioxide Crystals with Tailored Facets
Liu, G., Yang, H. G., Pan, J., Yang, Y. Q., Lu, G. Q. (., & Cheng, H.-M. (2014) · Chemical Reviews · doi:10.1021/cr400621z · Cited by 1,084
Metadata
- Authors
- Chen, M. S., & Goodman, D. W.
- Venue
- Science
- Published
- 2004-10-08
- Volume
- 306
- Issue
- 5694
- Pages
- 252-255
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2122075752
- Cited by
- 1,620
- References
- 0
- FWCI
- 54.58
- Type
- journal article
- Language
- en
- Open access
- closed
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