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Electrocatalytic Synergy on Nanoparticulate Films Prepared from Oppositely Charged Pt and Au Nanoparticles
Author(s) -
Dolinska Joanna,
Kannan Palanisamy,
Sashuk Volodymyr,
JonssonNiedziolka Martin,
Kaszkur Zbigniew,
Lisowski Wojciech,
Opallo Marcin
Publication year - 2014
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201402010
Subject(s) - bimetallic strip , platinum , x ray photoelectron spectroscopy , cyclic voltammetry , nanoparticle , electrode , platinum nanoparticles , scanning electron microscope , materials science , colloidal gold , nanotechnology , electrocatalyst , electrochemistry , chemical engineering , analytical chemistry (journal) , nuclear chemistry , chemistry , catalysis , metal , organic chemistry , metallurgy , composite material , engineering
Electrodes modified with oppositely charged platinum and gold nanoparticles exhibit electrocatalytic synergy of glucose oxidation. Such a simple method of preparation of bimetallic nanoparticulate films produces an electrode with significant shift of the onset potential as compared to electrodes prepared only from platinum (ca. 0.45 V) or gold (ca. 0.6 V) nanoparticles. The observed effect results from close proximity of the Au and Pt nanoparticles surfaces within the film. The electrode was also characterized by scanning electron microscopy, X‐ray photoelectron spectroscopy, powder X‐ray diffraction measurements and cyclic voltammetry.