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Electrocatalytic Oxidation of Formaldehyde on Copper Oxide Nano‐crystalline Modified Glassy Carbon Electrode
Author(s) -
Jing Zhenhui,
Lin Xiangqin
Publication year - 2010
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201190004
Subject(s) - chemistry , formaldehyde , amperometry , electrode , electrochemistry , catalysis , inorganic chemistry , oxide , working electrode , glassy carbon , detection limit , electrocatalyst , copper , carbon fibers , quinhydrone electrode , cyclic voltammetry , organic chemistry , materials science , chromatography , composite material , composite number
This research found a cheap and efficient catalyst for electrooxidation of formaldehyde (HCHO). A CuO nano‐crystalline modified glassy carbon electrode (GCE) was fabricated and had an excellent electrocatalytic activity towards the oxidation of HCHO. Both the effect of potential scan rate and the effect of HCHO concentration on the electrocatalytic oxidation performance of the electrode were investigated. The amperometric current response of the electrode was proportional to HCHO concentration in the range of 1.0 µmol·L −1 –10.0 mmol·L −1 with a detection limit ( s / n =3) of 0.25 µmol·L −1 . The electrode was stable, showing the CuO nano‐crystlline is promising for applications in fuel cells and electrochemical sensors.