Premium
Ordered Macroporous Ruthenium Oxide Electrodes for Potentiometric and Amperometric Sensing Applications
Author(s) -
Lenz J.,
Trieu V.,
Hempelmann R.,
Kuhn A.
Publication year - 2011
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.201000726
Subject(s) - amperometry , ruthenium oxide , potentiometric titration , ruthenium , biosensor , electrode , materials science , electroanalytical method , electrochemistry , oxide , inorganic chemistry , nanotechnology , chemistry , catalysis , organic chemistry , metallurgy
We report two methods to prepare ordered macroporous ruthenium oxide electrodes based on a template approach and their possible applications as potentiometric and amperometric sensors. The very stable porous electrodes have been prepared using two techniques to assemble the colloidal template: the controlled evaporation (CE) technique and the Langmuir–Blodgett (LB) technique, followed by electrochemical deposition of ruthenium oxide. The increased surface area of the macroporous structure makes them attractive for electroanalytical applications such as potentiometric and amperometric sensors as is illustrated for pH sensing and direct oxidation of NADH, which is an important ingredient in dehydrogenase based biosensors.