Star-like PtCu nanoparticles supported on graphene with superior activity for methanol electro-oxidation

A comprehensive and critical review on recent progress in anode catalyst for methanol oxidation reaction

“…They proposed the reasons for the higher activity for star-like PtCu as: (a) Special star-like structure provide a strong synergetic effect between Pt and Cu, (b) the unique electronic property and metal interaction with rGO enhances the electrocatalytic effect, (c) choosing Cu as the second doping element in the Pt alloy influences the activity through providing oxygen-containing species for the oxidation of CO at lower potentials than Pt and translating the electronic properties of Pt for the adsorption of CO as well as for dissociative adsorption of methanol. [144] In order to maximize the activity of PdCu, Xu et al added TiO 2 as a supportive material in which more oxygencontaining group can be generated on its surface that could enhance the catalytic activity and reduce the CO poisoning. The surface morphology shows that TiO 2 nanoneedles are distributed randomly and densely over the surface of the nanoporous PdCu.…”

Decorating the carbon felt electrode with polymeric platinize nanocomposite: characterization and electrocatalytic activity towards methanol oxidation reaction

“…Some of the species such as CO, HCOO − are the primary intermediates and another species such as HCHO and HCOOH are the secondary intermediates. [34][35][36] The (I f /I b ) ratio is the criterion for the antipoisoning property of catalyst. The high value of I f /I b for the synthesized catalyst indicates the wealthy methanol oxidation and high tolerance towards poisoning phenomenon on the catalyst surface.…”

Dealloying monolithic Pt-Cu alloy to wire-like nanoporous structure for electrocatalysis and electrochemical sensing

“…Nanostructured Pt-Cu alloy has shown enhanced performance for various catalytic reactions such as electrochemical methanol oxidation and oxygen reduction [27][28][29][30][31][32][33][34][35][36][37][38][39][40]. In this work, we try to fabricate uniform nanoporous PtCu alloys with widely tuned alloy ratio by dealloying a diluted Pt-Cu binary precursor.…”