Multisegment PtRu Nanorods: Electrocatalysts with Adjustable Bimetallic Pair Sites

Metal Oxide Promoted Electrocatalysts for Methanol Oxidation

“…A relative area of integrated peak intensities of the Pt 0 peak (75%) is much higher that of Pt 2? species (25%) which is comparable [27] or better [28] than the reported literature values. This means that surface of platinum species is predominately Pt 0 .…”

“…The second and weaker doublet (at 73.5 and 76.9 eV), with 1.9 eV of higher binding energy (BE) than that of Pt 0 could be assigned to the Pt 2? species [27][28][29]. A relative area of integrated peak intensities of the Pt 0 peak (75%) is much higher that of Pt 2?…”

Pt nanowires prepared via a polymer template method: Its promise toward high Pt-loaded electrocatalysts for methanol oxidation

“…4 mg cm −2 [11]. However, most of the previous studies [5][6][7][8][9][10] have focused on the potential possibility of the Pt-based nanowires that were prepared via inorganic hard templates without comparing mass-based activities between 1D nanostructures and conventional nanoparticles, therefore the promises of 1D nanostructured electrocatalysts have not been fully realized yet.…”

“…Thus, one-dimensional (1D) nanostructures, i.e., rods, tubes, and wires, of platinum would be realized as a new promising electrode catalyst for improving the performance of the DMFCs due to several beneficial features arising from their shape anisotropy on the electrochemical oxidations at electrodes: (i) facile pathways for the electron transfer by reducing the number of interfaces between the nanoparticle catalysts and (ii) effective surface exposure to work as active catalytic sites in the electrode-electrolyte interface. Recently, there have been several reports [5][6][7][8][9][10] that demonstrated the Pt or Pt-based nanowires as the electrocatalysts for the methanol oxidation; for example, Pt and Pt-Ru nanowire array electrodes prepared by electrodeposition over an anodic alumina oxide (AAO) template on Ti/Si substrate [5] and Pt-Ru nanowire network synthesized in a SBA-15 silica template [6]. Pt nanowires formed directly in a Nafion ® membrane via electrodeposition was also reported and the mass-based activity was compared per gram of Pt between the nanowire and nanoparticle morphology using a single Pt loading of ca.…”

Novel Au–Pd bimetallic core–shell nanocomplex and its catalytic activity modulation

“…Core-shell Rh-Pd and Pt-Pd nanoparticles catalysts with well controlled core-shell morphology exhibited excellent physicochemical properties [10]. It is well known that the metallic nanoparticles performed much higher catalytic activity than bulk metal [11][12][13][14][15][16][17][18][19]. Because of the synergetic effect, bimetallic nanoparticles usually displayed higher catalytic activity than the monometallic ones [11][12][13][14].…”