Classical strong metal–support interactions between gold nanoparticles and titanium dioxide
Science Advances, ISSN: 2375-2548, Vol: 3, Issue: 10, Page: e1700231
2017
- 435Citations
- 326Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Metrics Details
- Citations435
- Citation Indexes435
- 435
- CrossRef389
- Captures326
- Readers326
- 326
Article Description
Supported metal catalysts play a central role in the modern chemical industry but often exhibit poor on-stream stability. The strong metal–support interaction (SMSI) offers a route to control the structural properties of supported metals and, hence, their reactivity and stability. Conventional wisdom holds that supported Au cannot manifest a classical SMSI, which is characterized by reversible metal encapsulation by the support upon high-temperature redox treatments. We demonstrate a classical SMSI for Au/TiO, evidenced by suppression of CO adsorption, electron transfer from TiO to Au nanoparticles, and gold encapsulation by a TiO overlayer following high-temperature reduction (reversed by subsequent oxidation), akin to that observed for titania-supported platinum group metals. In the SMSI state, Au/TiO exhibits markedly improved stability toward CO oxidation. The SMSI extends to Au supported over other reducible oxides (FeO and CeO) and other group IB metals (Cu and Ag) over titania. This discovery highlights the general nature of the classical SMSI and unlocks the development of thermochemically stable IB metal catalysts.
Bibliographic Details
American Association for the Advancement of Science (AAAS)
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