Boosting the electrocatalytic activity of Pd/C by Cu alloying: Insight on Pd/Cu composition and reaction pathway

Cyanogel-Derived Synthesis of Porous PdFe Nanohydrangeas as Electrocatalysts for Oxygen Reduction Reaction

“…The following are available online at https://www.mdpi.com/article/ 10.3390/nano11123382/s1, Equation S1: Formation equation of cyanogel from transition metal cyanometalates and tetrachlorometalates in aqueous solution, Figure S1 S1: Comparison of the ORR activity of the porous PdFe nanohydrangeas with other electrocatalysts previously reported. References [41][42][43][44][45][46][47][48] were cited in Supplementary Materials.…”

Fabrication of polyoxometalate-modified palladium–nickel/reduced graphene oxide alloy catalysts for enhanced oxygen reduction reaction activity

“…On the base of RDE experiments, the number of the electrons transferred during the oxygen reduction procedure was estimated by the Koutecky–Levich (K–L) equation as defined below: 64 ω = 0.62 nF ( D 0 ) 2/3 C 0 υ −1/6 where I is the acquired current density, I K and I D are the kinetic and diffusion-limited current density, respectively; ω is the electrode rotation rate (rad s −1 ), n is the number of electrons transferred in the oxygen reduction, F is the Faraday's constant (96 485 C mol −1 ), D 0 represents the diffusion coefficient of dissolved O 2 (1.9 × 10 −5 cm 2 s −1 ), C 0 expresses the concentration of dissolved O 2 in the electrolyte (1.2 × 10 −3 M), and υ is the kinematic viscosity of the solution (1 × 10 −2 cm 2 s −1 ). 13,65,66 …”

“…where I is the acquired current density, I K and I D are the kinetic and diffusion-limited current density, respectively; u is the electrode rotation rate (rad s À1 ), n is the number of electrons transferred in the oxygen reduction, F is the Faraday's constant (96 485 C mol À1 ), D 0 represents the diffusion coefficient of O 2 (1.9 Â 10 À5 cm 2 s À1 ), C 0 expresses the concentration of dissolved O 2 in the electrolyte (1.2 Â 10 À3 M), and y is the kinematic viscosity of the solution (1 Â 10 À2 cm 2 s À1 ). 13,65,66 Fig. 6c and d illustrate the particular K-L plots of Pd/rGO and Pd 8 Ni 2 /rGO-POM at selected electrode potentials draed from the LSV curves.…”

“…[9][10][11][12] With the continuing growth of nanotechnologies, various investigations have reported that Pd-based alloy materials are becoming appealing nanocatalysts. A variety of alloyed materials like PdCu, 13 PdFe, 8,14,15 PdAg, 16 PdCo, 17,18 and PdAu 19 have been investigated on account of their greater catalytic activity and cost-effectiveness. Pd-containing bimetallic alloyed catalysts, especially Pd-Ni alloys, indicate better electrocatalytic capabilities compared with monometallic systems.…”

On a high photocatalytic activity of high-noble alloys Au–Ag/TiO2 catalysts during oxygen evolution reaction of water oxidation

“…In heterogeneous catalysis, although bimetallic alloys have been investigated extensively [38][39][40] , the reliance of photocatalytic oxygen evolution reactions (OER) on the alloy components for water oxidation reaction is yet to be studied. The DFT calculations can be coupled with the experimental techniques to understand the enhanced activity of heterogeneous catalysts, e.g., Pd-Cu alloy nanoparticles supported on carbon support 41 and M 4 /CeO 2 (ZrO 2 ) where M 4 is Pt, Pd, and Rh 42 . In addition, there are other theoretical and experimental works that have been carried out on similar interfaces.…”