Graphene-supported platinum and platinum–ruthenium nanoparticles with high electrocatalytic activity for methanol and ethanol oxidation

Growth morphology and thermal stability of metal islands on graphene

“…We show that the growth morphology and stability of the metal nanostructures on graphene is strongly related to the basic energy landscape (i.e., adsorption energy and diffusion barriers) between the metal adatoms and graphene. We predict that some of these metals exhibit growth morphology and thermal stability that meet the requirements for good supported catalysis applications, [7][8][9][10] consistent with experiment.…”

“…The 3D morphology and strong thermal stability of Fe, Co, Ni, Pt, and Gd islands on graphene can serve as good candidates for surface-supported catalysis applications. [2][3][4][5][6][7][8][9] Enhanced electrocatalytic activity of Pt, Pd, and PdRu nanoparticles on graphene has been reported by several experimental groups. [2][3][4][5][6][7] It has also been shown that Pt nanoparticles on graphene are very stable against aggregation among them or against desorption from the graphene substrate.…”

Graphene based metal and metal oxide nanocomposites: synthesis, properties and their applications

“…In another study the electrocatalytic activity of HRG/Pt-Ru was tested for the electro-oxidation of both methanol and ethanol. 416 The composite material demonstrated enhanced diffusion efficiency and oxidation potential compared to the widely used Vulcan XC-72R carbon black catalyst support. Similarly, a Pt/Pd alloy on Nafion-graphene exhibited efficient electrocatalytic activity and stability towards ethanol oxidation in alkaline solution.…”

Electrochemical behavior of electrodeposited Pd and PdNi coatings for the ethanol oxidation reaction in alkaline solution

“…Among the different types of fuel cells, direct alcohol fuel cells possess besides high energy densities, low pollutant emissions and low operating temperatures (60-100 °C) [1][2][3]. Alkaline direct ethanol fuel cells (ADAFCs) is recognized as promising power source because ethanol has higher energy density and lower toxicity compared to methanol [4].…”