1D Pd-Based Nanomaterials as Efficient Electrocatalysts for Fuel Cells - Low-cost Nanomaterials: Toward Greener and More Efficient Energy Applications - page 333

Fig. 15 Cyclic voltammograms (CVs) for determining the relative ECSA change of Pd and
electrocatalytic activity. a CVs recorded in a N 2 -purged 1.0 M KOH solution at room
temperature. Pseudo-area activity (b) and mass activity (c) of unsupported Pd-Au BHTs with
different Pd atom percentage for ethanol oxidation in 1.0 M KOH + 1.0 M C 2 H 5 OH. The insets
show the peak current variation by increasing the Au atom percentage. d Pseudo-area activity and
e mass activity of Pd NP tubes, unsupported Pd-Au BHTs, and Pt/C catalyst. f Chronoampero-
metric curves for ethanol electrooxidation at -0.3 V versus Hg/HgO on Pd NP tubes,
unsupported Pd-Au BHTs, and Pt/C catalyst. Scan rate: 50 mV s -1 . Reprinted from Ref. [ 80 ]
with permission by the American Chemical Society
local reactivity, and the significant coupling of d orbitals at the Pd-Au particle
interfaces [ 80 , 106 ].
More recently, Zhu et al. [ 64 ] developed a facile and general approach to
synthesize high aspect ratio 1D Pd-based ANWs and found that the as-prepared