Small-sized PdCu nanocapsules on 3D graphene for high-performance ethanol oxidation

Abstract

A one-pot solvothermal process has been developed for direct preparation of PdCu nanocapsules (with a size of ca. 10 nm) on three-dimensional (3D) graphene. Due to the 3D pore-rich network of graphene and the unique hollow structure of PdCu nanocapsules with a wall thickness of ca. 3 nm, the newly-prepared PdCu/3D graphene hybrids activated electrochemically have great electrocatalytic activity towards ethanol oxidation in alkaline media, much better than single-phase Pd and commercial E-TEK 20% Pt/C catalysts promising for application in direct ethanol fuel cells.

Green synthesis of PdCu supported on graphene/polyoxometalate LBL films for high-performance formic acid oxidation

“…Fig. 6 This indicates the formation of the single-phase PdCu alloy which is agree with results obtained from data of Fig. In the absence of PdCu with other conditions unchanged, the as-produced sample is PDDA-GN/PMo 12 .…”

Three-dimensional Au0.5/reduced graphene oxide/Au0.5/reduced graphene oxide/carbon fiber electrode and its high catalytic performance toward ethanol electrooxidation in alkaline media

“…[1][2][3] Traditionally, Pt and Pt-based materials have been used as active catalysts for the ethanol electrooxidation reaction in direct ethanol fuel cells. Direct ethanol fuel cells are one of the most promising technologies because of their low toxicity, high energy, and the ease of storage and refueling of the ethanol fuels.…”

Ethanol electro-oxidation on nanoworm-shaped Pd particles supported by nanographitic layers fabricated by electrophoretic deposition

“…3,4 Among organic alcohol-based fuel cells, direct methanol fuel cells (DMFCs) and direct ethanol fuel cells (DEFCs) have attracted widespread attention due to their potential use in electric vehicles and portable electronic devices. [6][7][8][9] Pt-based catalysts are generally recognized as efficient electrocatalysts for ethanol electro-oxidation in acidic media due to their high catalytic activity in ethanol electro-oxidation reaction. Additionally, ethanol is safer and has a higher energy density than methanol.…”