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. 2015 Jan 22;48(2):154–162. doi: 10.1021/ar500237c

Figure 7.

Figure 7

(a) Schematic illustration of the electrocatalytic activities of Pdα,β,γ-CD aerogels toward ethanol oxidation and PtnPd100–n aerogels toward the ORR. (b) Cyclic voltammograms of electrodes modified with Pdα,β,γ-CD aerogels and Pd/C in 1.0 M KOH + 1.0 M C2H5OH aqueous solution. (c) Chronoamperometric curves for ethanol electrooxidation at −0.3 V/Ag/AgCl. (d) Volcano plot of the ORR mass activity of various PtnPd100–n aerogel catalysts as a function of Pt content at 0.9 V vs RHE. The open circle represents the value for Pt/C. (e) Relative ORR mass activities of various PtnPd100–n catalysts as functions of the number of potential cycles (linear potential sweeps between 0.5 and 1.0 V/RHE): ○, Pt40Pd60; ■, Pt80Pd20; ▲, Pt; ⧫, Pd; ☆, 20% Pt/C. Panels (a–e) are reproduced with permission from refs (18) and (19). Copyright 2012 and 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.