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Title: Electrochemical sensor having suspended element counter electrode and deflection method for current sensing

Abstract

An electrochemical suspended element-based sensor system includes a solution cell for holding an electrolyte comprising solution including at least one electrochemically reducible or oxidizable species. A working electrode (WE), reference electrode (RE) and a counter electrode (CE) are disposed in the solution. The CE includes an asymmetric suspended element, wherein one side of the suspended element includes a metal or a highly doped semiconductor surface. The suspended element bends when current associated with reduction or oxidation of the electrochemically reducible or oxidizable species at the WE passes through the suspended element. At least one measurement system measures the bending of the suspended element or a parameter which is a function of the bending.

Inventors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176296
Patent Number(s):
7,716,965
Application Number:
11/588,542
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Thundat, Thomas G., and Brown, Gilbert M. Electrochemical sensor having suspended element counter electrode and deflection method for current sensing. United States: N. p., 2010. Web.
Thundat, Thomas G., & Brown, Gilbert M. Electrochemical sensor having suspended element counter electrode and deflection method for current sensing. United States.
Thundat, Thomas G., and Brown, Gilbert M. Tue . "Electrochemical sensor having suspended element counter electrode and deflection method for current sensing". United States. https://www.osti.gov/servlets/purl/1176296.
@article{osti_1176296,
title = {Electrochemical sensor having suspended element counter electrode and deflection method for current sensing},
author = {Thundat, Thomas G. and Brown, Gilbert M.},
abstractNote = {An electrochemical suspended element-based sensor system includes a solution cell for holding an electrolyte comprising solution including at least one electrochemically reducible or oxidizable species. A working electrode (WE), reference electrode (RE) and a counter electrode (CE) are disposed in the solution. The CE includes an asymmetric suspended element, wherein one side of the suspended element includes a metal or a highly doped semiconductor surface. The suspended element bends when current associated with reduction or oxidation of the electrochemically reducible or oxidizable species at the WE passes through the suspended element. At least one measurement system measures the bending of the suspended element or a parameter which is a function of the bending.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {5}
}

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Works referenced in this record:

A differential microcantilever-based system for measuring surface stress changes induced by electrochemical reactions
journal, May 2005

  • Tabard-Cossa, Vincent; Godin, Michel; Beaulieu, L. Y.
  • Sensors and Actuators B: Chemical, Vol. 107, Issue 1
  • DOI: 10.1016/j.snb.2004.10.007