Bismuth-modified carbon supported Pt nanoparticles as electrocatalysts for direct formic acid fuel cells

Tailoring properties of platinum supported catalysts by irreversible adsorbed adatoms toward ethanol oxidation for direct ethanol fuel cells

“…Studies concerning fuel cell anode reactions have also been reported in modified single crystal surfaces [8,10], preferentially oriented nanoparticles and also carbon supported nanoparticles [9,17,19,20].…”

“…These surfaces are normally stable in a large potential range. A successful example of the enhancement of the catalytic properties of platinum surfaces by the deposition of irreversible adsorbed adatoms was found on the oxidation of formic acid [8,9], methanol [10] and also ethanol [11][12][13] at Pt single crystals. These reactions also proceed through a dual-path mechanism.…”

Green Synthesis of Metallic and Carbon Nanostructures

“…Nanoparticles and formic acid have a similar role, since the electrochemical oxidation process of formic acid is an efficient energy supplier in direct formic acid fuel cells (DFAFCs) for mobile and portable applications [111][112][113]. The biodegradability and low cost of formic acid makes it a valuable resource in energy storage, in spite of its toxicity [114][115][116][117]. Thus, metallic and bimetallic nanoparticles Pt [118], Pt-Cu [119], Pt-Au [120,121], Pd-Ag [122], and so on are used as catalysts in the electro-oxidation of formic acid.…”

Pt catalysts modified with Bi: Enhancement of the catalytic activity for alcohol oxidation in alkaline media

“…The improved performance of binary and ternary electrocatalysts including Pt-Ru [15][16][17], Pt-Sn [15,16,18,19], PtSnRu [15], PtSnNi [19], PtRuNi [20], PtRuMo [21] and PtCuCo [22] have been extensively studied in both acidic and alkaline media. 4 Recently, elements as Bi have been found to promote formic acid [23], methanol [24] (at Pt single crystals) and ethanol oxidation [4,25] (Pt/C nanoparticles) in acidic media. Bi can be spontaneously adsorbed onto Pt surfaces resulting in a stable bimetallic surface in which the surface coverage of the adatom can be easily modified [26].…”