High‐Performance Electrocatalytic Activity of Palladium‐Copper Nanoalloy towards Methanol Electro‐oxidation in an Alkaline Medium. Issue 2 (18th August 2016)

• Record Type: Journal Article
• Authors: Arulmani, Subramanian; Krishnamoorthy, Sathiyan; Wu, Jerry J.; Anandan, Sambandam
• Is Part Of: Electroanalysis. Volume 29:Issue 2(2017)
• Page Start: 433
• Page End: 440
• Publication Date: 2016-08-18
• Subjects: PdCu nanoalloy -- Co-reduction -- Electrocatalyst -- Chronoamperometry -- Methanol oxidation.; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.201600164
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: Nanoalloy of PdCu were synthesized with three different stoichiometry ratio (3 : 1, 1 : 1, 1 : 3) by simple co‐reduction process at 5 °C with Triton X‐100 as surface modifier. Morphology and composition of the synthesized catalyst were characterized by X‐ray diffraction (XRD), X‐ray photo electron spectroscopy (XPS), scanning electron microscope (SEM), transmission electron microscope (TEM), energy dispersive X‐ray analysis (EDAX) with selected area electron diffraction (SAED) techniques. Electrocatalytic activity and stability of the catalysts towards methanol oxidation reaction were verified in alkaline medium by cyclic voltammetry (CV) and chronoamperometry (CA). Observed results emphasis that PdCu nanoalloy in the 3 : 1 stoichiometric ratio shows better catalytic activity (778.98 mA mg −1 ) and stability not only in the initial state (93.73 mA mg −1 ) but also after 1800 s (8.61 mA mg −1 ) among all other prepared catalysts. Abstract :