One-step efficiently coupling ultrafine Pt–Ni2P nanoparticles as robust catalysts for methanol and ethanol electro-oxidation in fuel cells reaction

Bimetallic Pd96Fe4 nanodendrites embedded in graphitic carbon nanosheets as highly efficient anode electrocatalysts

“…20,95,96 Additionally, the highly active sites and large effective surface area of carbon nanosheets with a graphene-like layered structure shorten paths for fast electrolyte ion diffusion, consequently offering more electron/charge transfer channels within the nanohybrid materials during catalysis. [97][98][99] Furthermore, the combination of graphitic nanosheets with metal nanostructures leads to the protection of the metal nanocluster from further aggregation and provides superior catalytic activity, and can be extended as a scalable, clean approach without using any chemical reducing agents via radiolysis. During ethanol oxidation, initially ethanol may adsorb on the electrode surface followed by oxidation and decomposition to generate intermediates such as acetate (CH 3 COO À ), acetaldehyde (CH 3 CHO), and CO. 5 In order to shed light on anodic oxidation of ethanol, a cyclic voltammetric study was carried out using Pd 96 Fe 4 /GCN electrodes immersed in 0.5 M KOH with sodium acetate, acetaldehyde and ethanol fuels (100 mM).…”

PdNi/N-doped graphene aerogel with over wide potential activity for formic acid electrooxidation

“…Graphene aerogels (GAs), whose structure comprises 2D individual graphene sheets self-assembled to form 3D layers, could overcome the above-mentioned easy agglomeration and destruction problems. Thus, GAs are advantageous over pristine graphene, having the 2D structure, in terms of efficient ion and molecule transport and diffusion and large surface area [18,19]; thus, they might be a suitable support for advanced Pd-based catalysts. Moreover, oxophilicity is desirable in Pd-based catalysts because the easy generation of oxygen-containing species prevents the accumulation of poisoning intermediates [20,21].…”

Rational Design of Bimetallic Au/Cu Nanostructure: An Efficient Catalyst for Methanol Oxidation

“…Liu et al. has successfully synthesized Pt−Ni 2 P‐Graphene hybrid nano‐structured by a simple one‐step approach for methanol and ethanol oxidation [29] . They demonstrated that 20% Pt−Ni 2 P−G catalyst showed the onset potential for methanol oxidation was about 0.252 V and the peak current density in the positive scan was 124.2 mA cm −2 which was about 2.9 times higher than that of the controlled Pt/G−H catalyst.…”