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Development of Nonenzymatic Hydrogen Peroxide Sensor Based on Successive Pd‐Ag Electrodeposited Nanoparticles on Glassy Carbon Electrode
Author(s) -
Roushani Mahmoud,
Dizajdizi Behruz Zare
Publication year - 2016
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201500569
Subject(s) - hydrogen peroxide , electrode , electrochemistry , scanning electron microscope , materials science , catalysis , nanoparticle , selectivity , electrochemical gas sensor , glassy carbon , detection limit , palladium , inorganic chemistry , reversible hydrogen electrode , carbon fibers , chemical engineering , nuclear chemistry , chemistry , nanotechnology , working electrode , cyclic voltammetry , organic chemistry , composite number , composite material , chromatography , engineering
Abstract A novel strategy to fabricate hydrogen peroxide (H 2 O 2 ) sensor was developed by electrodepositing palladiumsilver nanoparticles (NPs) on a glassy carbon electrode. The morphology of the modified electrode was characterized by Scanning electron microscopy (SEM). The result of electrochemical experiments showed that such constructed sensor had a favorable catalytic ability, high sensitivity, excellent selectivity towards reduction of hydrogen peroxide (H 2 O 2 ). The response to H 2 O 2 is linear in the range between 0.30 μM to 2.50 mM, and the detection limit is 0.1 μM (at an S/N of 3).