Recent advances in platinum monolayer electrocatalysts for oxygen reduction reaction: Scale-up synthesis, structure and activity of Pt shells on Pd cores

Development of Highly Active and Durable Platinum Core-shell Catalysts for Polymer Electrolyte Fuel Cells

“…The highest activity of PtML/ Pd(111) has been considered to be resulted from a slightly compressive strain of the Pt _ Pt bond, which preferably accelerates the dissociative adsorption of O2 molecules on the Pt surface and enhanced the ORR activity (called the strain effect). Similar enhancement effects were also reported for PtML/Pd/C core-shell particles 8) . The enhancement effect of the Pd cores has been also explained in terms of a change in the electronic state, called the d-band center (called the ligand effect) 8) .…”

“…Similar enhancement effects were also reported for PtML/Pd/C core-shell particles 8) . The enhancement effect of the Pd cores has been also explained in terms of a change in the electronic state, called the d-band center (called the ligand effect) 8) .…”

Highly stable Pt monolayer on PdAu nanoparticle electrocatalysts for the oxygen reduction reaction

“…A Cu monolayer was obtained by underpotential deposition of a Cu monolayer on the reduced surfaces of the Pd 9 Au 1 nanoparticles. The procedure of 2 g synthesis was described elsewhere 37 . Recently, the quantity of one batch was increased to 200 g. The total metal loading of the Pt ML /Pd 9 Au 1 /C is 40 wt%.…”

“…Details of the electrochemical cell, which is a modified version of that described in ref. 38, are given elsewhere 37 . The data acquired by both the electrochemical and thermal cells were processed and analysed by Athena and Artemis software 39 .…”

Electrochemical preparation and characterization of PdPt nanocages with improved electrocatalytic activity toward oxygen reduction reaction

“…As shown in Fig. 9, the linearity and parallelism of the Koutecky-Levich plots suggest first order kinetics with respect to molecular oxygen [51,52]. The total number of electrons transferred (n) can be calculated according to Koutecky-Levich equation [53][54][55], which was 3.8, 3.8 and 3.9 for Pd@Pt NDs/C, PdPt NCs/C and Pt/C, respectively, with the value of D, c, and to be 1.9 × 10 −5 cm 2 s −1 , 1.1 × 10 −6 mol cm −3 and 1.0 × 10 −2 cm 2 s −1 , respectively [54].…”