Premium
Electrochemical Detection of Nitric Oxide on a SWCNT/RTIL Composite Gel Microelectrode
Author(s) -
Li Chang Ming,
Zang Jianfeng,
Zhan Dongping,
Chen Wei,
Sun Chang Q.,
Teo Ai. L.,
Chua Yek. T.,
Lee Vee. S.,
Moochhala Shabbir. M.
Publication year - 2006
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.200503457
Subject(s) - microelectrode , carbon nanotube , materials science , electrode , nafion , electrochemistry , ionic liquid , chemical engineering , coating , amperometry , layer (electronics) , inorganic chemistry , nanotechnology , chemistry , organic chemistry , catalysis , engineering
Single walled carbon nanotubes (SWCNT) and room temperature ionic liquid (RTIL) were used to make a gel microelectrode for studies of the oxidation of nitric oxide (NO). The Faraday response of the gel microelectrode was contributed from two components: an outside‐surface microdisk and a thin‐layer cell formed by inner porous electrode materials, and enhanced by the thin‐layer effect. An EC mechanism, electrochemical NO oxidation followed by a chemical oxidation, was proposed. The gel microelectrode with a Nafion coating eliminated interferences from nitrite and some biomolecules, improved stability, and had a linear response range from 100 nM to 100 μM.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom