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Effect of retained chlorine in ENCAT™ 30 catalysts on the development of encapsulated Pd : insights from in situ Pd K, L3 and Cl K-edge XAS
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Newton, Mark E., Nicholls, Rachel, Brazier, John B., Nguyen, Bao N., Mulligan, Christopher J., Hellgardt, Klaus, Barreiro, Elena M., Emerich, Hermann, Hii, King Kuok (Mimi), Snigireva, Irina and Thompson, Paul B. J. (2017) Effect of retained chlorine in ENCAT™ 30 catalysts on the development of encapsulated Pd : insights from in situ Pd K, L3 and Cl K-edge XAS. Catalysis, Structure & Reactivity, 3 (4). pp. 149-156. doi:10.1080/2055074x.2017.1348711
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Official URL: http://dx.doi.org/10.1080/2055074X.2017.1348711
Abstract
In situ X-ray absorption spectroscopy (XAS) and Pd K, LIII, and Cl K-edges shows that Cl can be present in significant amounts in ENCAT™ 30 catalysts and that it can severely retard Pd nanoparticle (NP) development in flowing solvents. We also show that whilst polymeric encapsulation protects the Pd against solvent induced agglomeration of Pd nanoparticles the evidence suggests it does not prevent the formation PdHx through reaction with the aqeous ethanol solvent, and that, as received, ENCAT™ 30 NP catalysts are not, for the most part, comprised of nanoparticulate Pd0 irrespective of the presence of Cl.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | Q Science > QD Chemistry | ||||||
| Divisions: | Faculty of Science > Physics | ||||||
| SWORD Depositor: | Library Publications Router | ||||||
| Library of Congress Subject Headings (LCSH): | Palladium, Catalysis | ||||||
| Journal or Publication Title: | Catalysis, Structure & Reactivity | ||||||
| Publisher: | Informa UK Limited | ||||||
| ISSN: | 2055-0758 | ||||||
| Official Date: | 2 August 2017 | ||||||
| Dates: |
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| Volume: | 3 | ||||||
| Number: | 4 | ||||||
| Page Range: | pp. 149-156 | ||||||
| DOI: | 10.1080/2055074x.2017.1348711 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Publisher Statement: | ** From Crossref via Jisc Publications Router. | ||||||
| Access rights to Published version: | Open Access | ||||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), AstraZeneca (Firm), GlaxoSmithKline, Pfizer Inc. | ||||||
| Grant number: | EP/G070172/1, P/L003279/1 (EPSRC) |
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