ChemInform Abstract: Oxygen Reduction on Small Supported Platinum Particles.

Abstract

Aseries of four catalysts with 5, l0, 20, and 30 wt.% Pt on carbon has been prepared and incorporated into Teflon‐bonded electrodes.

Fuel Cells - Fundamentals and Applications

“…Pre-treatment of the catalyst such as heating under hydrogen or in air at high temperatures or the electrochemical activation of the electrodes can also improve the performance for oxygen reduction [48,[51][52][53][54][55][56][57][58][59][60][61][62][63][64][65].…”

Fuel Cells: Principles, Types, Fuels, and Applications

“…A series of reaction pathways have been suggested for the methanol oxidation reaction and the subsequent CO oxidation, as given in Equations (18) to (21).…”

Effect of particle size on the activity and durability of the Pt/C electrocatalyst for proton exchange membrane fuel cells

“…Several works reported that Pt reached a maximum mass specific activity at a mean particle size of 3-5 nm [15][16][17][18], while others observed a straight increase of mass specific activity as Pt particle size decreased [19][20][21]. Peuckert et al [15], for instance, found that the ORR surface specific activity was constant with Pt particle sizes above 4 nm but it dropped by a factor of 20 when the particle size decreased from 3 nm to 1 nm, suggesting around 4 nm be the optimum Pt particle size for the maximum ORR mass specific activity. By depositing Pt on high surface area carbons, Watanabe et al [19], however, demonstrated a constant ORR surface specific activity when Pt particle size deceased to even 1.4 nm, indicating there was no Pt particle size effect on catalyzing the ORR.…”