2016
DOI: 10.1002/anie.201510460
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Ultrathin Free‐Standing Ternary‐Alloy Nanosheets

Abstract: A synthesis strategy for the preparation of ultrathin free-standing ternary-alloy nanosheets is reported. Ultrathin Pd-Pt-Ag nanosheets with a thickness of approximately 3 nm were successfully prepared by co-reduction of the metal precursors in an appropriate molar ratio in the presence of CO. Both the presence of CO and the interplay between the constituent metals provide fine control over the anisotropic two-dimensional growth of the ternary-alloy nanostructure. The prepared Pd-Pt-Ag nanosheets were superior… Show more

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Cited by 210 publications
(130 citation statements)
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“…As an important parameter for the assessment of active sites of catalysts, the electrochemically active surface area (ECSA) was first evaluated. The ECSA of these NPs can be calculated from the charge required for oxygen desorption, that is, from the area of the reduction peak of PdO in the cyclic voltammograms (CVs) in 1.0 M of NaOH13. Figure 3a shows CVs of Pd 38 Ni 49 P 13 , Pd 38 Ni 45 P 17 , Pd 40 Ni 43 P 17 and commercial Pd/C catalysts in the deaerated NaOH solution (1.0 M) at a scan rate of 100 mV s −1 .…”
Section: Resultsmentioning
confidence: 99%
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“…As an important parameter for the assessment of active sites of catalysts, the electrochemically active surface area (ECSA) was first evaluated. The ECSA of these NPs can be calculated from the charge required for oxygen desorption, that is, from the area of the reduction peak of PdO in the cyclic voltammograms (CVs) in 1.0 M of NaOH13. Figure 3a shows CVs of Pd 38 Ni 49 P 13 , Pd 38 Ni 45 P 17 , Pd 40 Ni 43 P 17 and commercial Pd/C catalysts in the deaerated NaOH solution (1.0 M) at a scan rate of 100 mV s −1 .…”
Section: Resultsmentioning
confidence: 99%
“…CO stripping could serve as a model probe to evaluate the CO tolerance of catalysts3940. It has been widely accepted that the CO stripping follows by the reaction between the formed OH ads and CO ads (CO ads +OH ads →CO 2 +H 2 O, CO ads and OH ads represent the radicals adsorbed on the active sites)1314. Here, CO oxidation experiments were carried out at room temperature in the NaOH solution (1.0 M) purged with nitrogen for 30 min and then bubbled with CO gas (99.9%) for 15 min.…”
Section: Resultsmentioning
confidence: 99%
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