Remarkable electrocatalytic activity of Pd nanoparticles dispersed on polyaniline-polydiphenylamine copolymer nanocomposite for methanol and ethanol oxidation reaction

2021 ◽  
Vol 281 ◽  
pp. 116925
Author(s):  
Suba Lakshmi Madaswamy ◽  
M. Alfakeer ◽  
Aboud Ahmed Awadh Bahajjaj ◽  
Mohamed Ouladsmane ◽  
Saikh Mohammad Wabaidur ◽  
...  
Keyword(s):  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Pd Nanoparticles ◽  
Ethanol Oxidation Reaction

scholarly journals Effect of Pd on the Electrocatalytic Activity of Pt towards Oxidation of Ethanol in Alkaline Solutions

2021 ◽  
Vol 11 (3) ◽  
pp. 1315
Author(s):  
Salma Jadali ◽  
Mohammad Ali Kamyabi ◽  
José Solla-Gullón ◽  
Enrique Herrero
Keyword(s):  
Photoelectron Spectroscopy ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Aldol Condensation ◽  
Pd Nanoparticles ◽  
Alkaline Media ◽  
Alkaline Solutions ◽  
Ethanol Oxidation Reaction ◽  
X Ray

The understanding of electrocatalytic activity and poisoning resistance properties of Pt and Pd nanoparticles, recognized as the best electrocatalysts for the ethanol oxidation reaction, is an essential step for the commercialization of direct ethanol fuel cells (DEFCs). In this paper, mono and bimetallic Pt and Pd nanoparticles with different atomic ratios have been synthesized to study their electrocatalytic properties for an ethanol oxidation reaction in alkaline solutions. The different nanoparticles were physiochemically characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The electrochemical characterization was performed by cyclic voltammetry and chronoamperometry measurements. The electrochemical measurements indicate that Pt nanoparticles have much higher electrocatalytic activity for ethanol oxidation than Pd nanoparticles. The studies with bimetallic PtPd nanoparticles showed a significant impact of their composition on the ethanol oxidation. Thus, the highest electrocatalytic activity and poisoning resistance properties were obtained for Pt3Pd2 nanoparticles. Moreover, this study demonstrates that the poisoning of the catalyst surface through ethanol oxidation is related to the prevalence of the acetaldehyde–acetate route and the polymerization of acetaldehyde through aldol condensation in the alkaline media.

Synthesis and facile structure-adjusting of Pd–Pt nanocrystal electrocatalysts with improved activity for ethanol oxidation reaction

2019 ◽  
Vol 43 (46) ◽  
pp. 17954-17962
Author(s):  
Chang Liu ◽  
Xin Ran ◽  
Qing Qu ◽  
Tiantian Zhang ◽  
Guanben Du ◽  
...  
Keyword(s):  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Ethanol Oxidation Reaction

Illustration of the synthesis of the nanospheroid-, nanoflower- and nanoworm-Pd–Pt NCs and their electrocatalytic activity for ethanol oxidation.

Fabrication of dog-bone shaped Au NRcore–Pt/Pdshell trimetallic nanoparticle-decorated reduced graphene oxide nanosheets for excellent electrocatalysis

2016 ◽  
Vol 4 (10) ◽  
pp. 3765-3776 ◽  
Author(s):  
Soumen Dutta ◽  
Chaiti Ray ◽  
Anup Kumar Sasmal ◽  
Yuichi Negishi ◽  
Tarasankar Pal
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Graphene Oxide Nanosheets ◽  
Ethanol Oxidation Reaction ◽  
Dog Bone ◽  
Reduced Graphene

Dog-bone shaped Au NRcore–Pt/Pdshell decorated reduced graphene oxide nanocomposites (GMTs) exhibit outstanding electrocatalytic activity and durability towards ethanol oxidation reaction.

Sign in / Sign up

Export Citation Format

Share Document