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Silver‐Palladium Nanoalloys Modified Carbon Ionic Liquid Electrode with Enhanced Electrocatalytic Activity Towards Formaldehyde Oxidation
Author(s) -
Safavi Afsaneh,
Momeni Safieh,
Tohidi Maryam
Publication year - 2012
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.201200257
Subject(s) - amperometry , electrocatalyst , palladium , ionic liquid , chemistry , formaldehyde , formic acid , methanol , electrochemistry , inorganic chemistry , catalysis , electrode , organic chemistry
Electrocatalysis of the oxidation of formaldehyde on silver‐palladium‐modified carbon ionic liquid electrode (AgPd/CILE) was investigated in 0.1 M NaOH. The electrochemical performance of the AgPd/CILE was compared with those of Pd/CILE and Ag/CILE. Ag plays an important role in the catalytic performance of AgPd nanocatalyst and yields an excellent antifouling effect. Amperometric measurements showed that AgPd/CILE is a promising sensor for the detection of formaldehyde in the range of 10.0 µM–70.0 mM with a sensitivity of 240.6 µA mM −1 cm −2 and a detection limit of 2 µM. The method is free from interference of methanol, ethanol and formic acid.