Pt-, PtNi- and PtCo-supported catalysts for oxygen reduction in PEM fuel cells

CNx-modified Fe3O4 as Pt nanoparticle support for the oxygen reduction reaction

“…To enhance the activity of ORR, one of the many strategies is to explore novel materials as catalyst support to host highly active catalysts. Recently, it was found that some oxides, such as SiO 2 [9,10], Fe 3 O 4 [11], and TiO 2 [12], could be used as promising support materials to promote the electrocatalytic stability and even activity of Pt catalysts for ORR. The improved performances depend on the nature of the support.…”

Shape‐Controlled Synthesis of Pt3Co Nanocrystals with High Electrocatalytic Activity toward Oxygen Reduction

“…For this reason, the synthesis of Pt alloy nanoparticles with controlled compositions and morphologies has been extensively exploited for the last decade. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] Previous studies revealed that the ORR activities of Pt-M (where M is Co, Ni, Fe, Mn, Cr, Cu, and Pd) alloys are superior to those of pure Pt catalysts. In addition, their ORR kinetics can be controlled by tuning their morphologies because the enhancement of the ORR activity depends highly on the surface atom arrangements of the catalyst particles.…”

Pt-Cu/C and Pd Modified Pt-Cu/C electrocatalysts for the oxygen reduction reaction in direct methanol fuel cells

“…28,29 The density of the crystallites was determined with the expression: r = S j x j *r j, were r j is the density of metal j and x is the mass ratio in the catalyst. The densities of pure platinum, palladium and copper used were 21.45, 12.02 and 8.920 g mL -1 , respectively.…”