Oxygen reduction reaction on PdM/C (M = Pb, Sn, Bi) alloy nanocatalysts

PdNi Nanoframework and Nanochain Catalysts with Enhanced Oxygen Reduction Reaction Performance

“…[12,15,16] One possible solution to increase the ORR catalytic activity of Pd is to incorporate the TM into the Pd matrix in order to tune the electronic properties of the catalyst. [17][18][19][20] As shown in the literature, the d-band center of Pd is lowered upon forming Pd-TM alloys. This leads to the significant decrease of the Gibbs free energy at the first stage of electron transfer for the reduction of oxygen molecules, and at the stages associated with the reduction of intermediate products.…”

“…One possible solution to increase the ORR catalytic activity of Pd is to incorporate the TM into the Pd matrix in order to tune the electronic properties of the catalyst [17–20] . As shown in the literature, the d‐band center of Pd is lowered upon forming Pd‐TM alloys.…”

Mono-, bi- and tri-metallic Fe-based platinum group metal-free electrocatalysts derived from phthalocyanine for oxygen reduction reaction in alkaline media

“…For improving mass activity in alkaline media, Lüsi et al developed bimetallic PdM/C electrocatalysts (with M being Bi, Pb, or Sn) supported on Vulcan carbon. 54 Comparisons with pure Pd/C electrocatalysts were made, revealing enhanced mass activities in alkaline solution for BiPd and PbPd catalysts (2× and 1.6×, respectively) while SnPd exhibited lower mass activity. With an innovating approach, a bioinspired electrocatalyst with adjacent Cu and Fe sites has been developed using a directed synthetic pathway, forming a covalent 3D framework in aerogel form by Persky et al 28 This aerogel-based electrocatalyst displays high performance in both half-cell and AEM fuel cell setups, attributed to its unique structure and metal site proximity.…”

“…al. developed bimetallic PdM/C electrocatalysts (with M being Bi, Pb, or Sn) supported on Vulcan carbon 54. Comparisons with pure Pd/C electrocatalysts were made, revealing enhanced mass activities in alkaline solution for BiPd and PbPd catalysts PhD student, 2 Post Doc and a research portfolio of more than 1 M euro.…”

Component-controlled synthesis of PdxSny nanocrystals on carbon nanotubes as advanced electrocatalysts for oxygen reduction reaction

“…40 Among them, Sn is abundant, cheap, and can form a variety of nanocrystalline alloys with palladium. [41][42][43] The preparation of Pd-Sn bimetallic nanostructures is of great signicance for improving the ORR activity and stability of Pd-based catalysts. 44,45 In terms of the selection of catalyst support materials, carbon-based materials such as graphene, carbon blacks, nitrogen-doped carbon materials, and carbon nanotubes (CNTs) are widely used due to their high electrical conductivity, specic surface area, and affordability.…”