Next Article in Journal
A Deployment of Fine-Grained Sensor Network and Empirical Analysis of Urban Temperature
Previous Article in Journal
Virtual Sensor for Failure Detection, Identification and Recovery in the Transition Phase of a Morphing Aircraft
Article Menu

Export Article

Open AccessArticle
Sensors 2010, 10(3), 2202-2216; doi:10.3390/s100302202

Effect of Silver Annealing Conditions on the Performance of Electrolytic Silver/Silver Chloride Electrodes used in Harned Cell Measurements of pH

Analytical Science Division, National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK
*
Author to whom correspondence should be addressed.
Received: 22 February 2010 / Revised: 5 March 2010 / Accepted: 16 March 2010 / Published: 17 March 2010
(This article belongs to the Section Chemical Sensors)
View Full-Text   |   Download PDF [2646 KB, uploaded 21 June 2014]   |  

Abstract

We have studied the long and short term stability of electrolytic Ag/AgCl electrodes fabricated from Ag wire that has been subjected to a range of different annealing conditions. At elevated temperatures, the presence of oxygen during the annealing process has been shown to be detrimental to the performance of electrodes produced. This phenomenon has been attributed to the dissolution of oxygen in the Ag lattice leading to structural changes in the Ag/AgCl electrode material. Electrodes prepared from Ag wire annealed in the absence of oxygen have shown no appreciable change in performance throughout the temperature range employed. This work has resulted in an improved understanding of the optimum annealing conditions required for Ag used in the preparation of electrolytic Ag/AgCl reference electrodes. This work has positive implications for the accuracy of Harned cell measurements of pH.
Keywords: pH; Harned cell; Ag/AgCl electrodes; annealing; stability pH; Harned cell; Ag/AgCl electrodes; annealing; stability
Figures

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Brewer, P.J.; Brown, R.J.C. Effect of Silver Annealing Conditions on the Performance of Electrolytic Silver/Silver Chloride Electrodes used in Harned Cell Measurements of pH. Sensors 2010, 10, 2202-2216.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top