Branched PdAu nanowires with superior electrocatalytic formic acid oxidation activities

Abstract

Branched PdAu nanowires supported on graphene were prepared as catalysts for formic acid electro-oxidation, and they exhibited higher catalytic activity and durability than Pd/graphene and commercial Pd/C catalysts.

Au-Stabilized Nanoporous PdCuAu Alloys Exhibiting Outstanding Catalytic Activity and Durability for the Formic Acid Oxidation Reaction

“…Therefore, these values directly demonstrate the intrinsic catalytic activities of these Pd-based electrodes, and NPG-PdCuAu is the best one, about 15 times higher than that of Pd/C. Although the catalytic activity of NPG-PdCu is a little higher than that of NPG-Pd owing to the serious Cu leaching, the activity comparison of NPG-PdCu, NPG-PdCuAu, and NPG-Pd still shows the enhancement of Au and Cu on the catalytic activity of Pd as reported previously. ,,, Accommodating with the XPS spectra in Figure b–d and the calculated data in Table S1, the FAOR activity improves with the increasing proportions of metallic Pd as well as metallic Cu. These results are consistent with reported literature that metallic Pd is beneficial for the FAOR .…”

“…For this research target, the most inert metal Au is a commonly considered additive element. , For example, Guo and co-workers prepared a highly stable one-dimensional interlayer Pd/PdAu/Pt nanowire electrocatalyst while the PdAu interlayer could provide long-term protection of Pd in the core . In addition to stabilizing the catalyst composition, electronic interaction between Au and Pd is also beneficial for the FAOR. , Han and co-workers fabricated a PdAu alloy electrocatalyst which exhibits better catalytic activity than Au@Pd . Therefore, the addition of Au could obviously maintain the structure and composition of Pd-based electrocatalysts for the FAO reaction as well as outstanding catalytic activity.…”

“…22 In addition to stabilizing the catalyst composition, electronic interaction between Au and Pd is also beneficial for the FAOR. 21,23 Han and co-workers fabricated a PdAu alloy electrocatalyst which exhibits better catalytic activity than Au@ Pd. 24 Therefore, the addition of Au could obviously maintain the structure and composition of Pd-based electrocatalysts for the FAO reaction as well as outstanding catalytic activity.…”

Porous three-dimensional network of Pd–Cu aerogel toward formic acid oxidation

“…To resolve these problems, a variety of approaches have been published based on the tailored design of the size, chemical compositions, and shape of a catalyst. [4][5][6][7][8][9][10][11][12][13][14][15] Nowadays, self-assembled architectures have attracted great attention in nanoscience on account of their widespread applications (e.g. sensors, optics, catalysis, etc.).…”

Noble Metal-Based Nanocomposites for Fuel Cells

“…They are always used to modify the electronic structure of Pd and Pt in the fuel cell application and these nanocomposites will not be discussed below [88][89][90][91][92].…”