Improving gold catalysis of nitroarene reduction with surface Pd

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dc.citation.firstpage31en_US
dc.citation.journalTitleCatalysis Todayen_US
dc.citation.lastpage36en_US
dc.citation.volumeNumber264en_US
dc.contributor.authorPretzer, Lori A.en_US
dc.contributor.authorHeck, Kimberly N.en_US
dc.contributor.authorKim, Sean S.en_US
dc.contributor.authorFang, Yu-Lunen_US
dc.contributor.authorZhao, Zhunen_US
dc.contributor.authorGuo, Nengen_US
dc.contributor.authorWu, Tianpinen_US
dc.contributor.authorMiller, Jeffrey T.en_US
dc.contributor.authorWong, Michael S.en_US
dc.date.accessioned2016-04-29T15:49:33Zen_US
dc.date.available2016-04-29T15:49:33Zen_US
dc.date.issued2016en_US
dc.description.abstractNitroarene reduction reactions are commercialized catalytic processes that play a key role in the synthesis of many products including medicines, rubbers, dyes, and herbicides. Whereas bimetallic compositions have been studied, a better understanding of the bimetallic structure effects may lead to improved industrial catalysts. In this work, the influence of surface palladium atoms supported on 3-nm Au nanoparticles (Pd-on-Au NPs) on catalytic activity for 4-nitrophenol reduction is explored. Batch reactor studies indicate Pd-on-Au NPs exhibit maximum catalytic activity at a Pd surface coverage of 150 sc%, with an initial turnover frequency of ∼3.7 mol-nitrophenol/mol-metalsurface/s, which was ∼5.5× and ∼13× more active than pure Au NPs and Pd NPs, respectively. Pd NPs, Au NPs, and Pd-on-Au NPs below 175 sc% show compensation behavior. Three-dimensional Pd surface ensembles (with ∼4–5 atoms) previously identified through X-ray adsorption spectroscopy provide the active sites responsible for the catalytic maximum. These results demonstrate the ability to adjust systematically a structural feature (i.e., Pd surface coverage) to yield a more active material.en_US
dc.identifier.citationPretzer, Lori A., Heck, Kimberly N., Kim, Sean S., et al.. "Improving gold catalysis of nitroarene reduction with surface Pd." <i>Catalysis Today,</i> 264, (2016) Elsevier: 31-36. http://dx.doi.org/10.1016/j.cattod.2015.07.040.en_US
dc.identifier.doihttp://dx.doi.org/10.1016/j.cattod.2015.07.040en_US
dc.identifier.urihttps://hdl.handle.net/1911/90382en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsThis is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier.en_US
dc.subject.keywordnitrophenolen_US
dc.subject.keywordcatalysisen_US
dc.subject.keywordpalladiumen_US
dc.subject.keywordgolden_US
dc.subject.keywordnanoparticleen_US
dc.subject.keywordbimetallicen_US
dc.subject.keywordstructureen_US
dc.titleImproving gold catalysis of nitroarene reduction with surface Pden_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpost-printen_US
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