Electrochemical chlorine sensor based on the halide electrolyte with mediator for accidental releases

Authors

  • Александр Иванович Букет National Technical University of Ukraine “Kyiv Polytechnic Institute” Peremogy av., 37, Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0001-9609-5013
  • Ольга Владимировна Линючева National Technical University of Ukraine “Kyiv Polytechnic Institute” Peremogy av., 37, Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0003-4181-5946
  • Алексей Викторович Нагорный National Technical University of Ukraine “Kyiv Polytechnic Institute” Peremogy av., 37, Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0002-7407-7671
  • Алкесандр Генадиевич Линючев National Technical University of Ukraine “Kyiv Polytechnic Institute” Peremogy av., 37, Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0003-1683-5937

DOI:

https://doi.org/10.15587/1729-4061.2014.30566

Keywords:

amperometric chlorine sensor, measurement range, selectivity, mediator catalysis, iodine-iodide system

Abstract

An amperometric chlorine sensor with matrix electrolyte based on LiI, surpassing existing domestic and foreign samples by a range of specifications was developed. Implementation of the gas diffusion indicator electrode with iodine-iodide mediator system has allowed to increase the upper limit of measurement by more than an order of magnitude. Optimization of the indicator electrode with regard to the background current has allowed to expand the measurement range by 7 times compared with existing samples, which with the possibility of the 0,17 ppm chlorine concentration measurement (at the maximum allowable concentration of 0,3 ppm) allows to reach the upper limit of measurement of 100 ppm or more. The duration of the transition process (τ90) of defining the transitional signal of the developed sensor is within 30-60s. Balanced electrochemical system of the sensor ensures its stable operation by several times longer than the warranty period.

Author Biographies

Александр Иванович Букет, National Technical University of Ukraine “Kyiv Polytechnic Institute” Peremogy av., 37, Kyiv, Ukraine, 03056

Associate professor, Candidate of technical science

Department of Electrochemical Productions Technology

Ольга Владимировна Линючева, National Technical University of Ukraine “Kyiv Polytechnic Institute” Peremogy av., 37, Kyiv, Ukraine, 03056

Professor, Doctor of technical sciences

Department of Electrochemical Productions Technology

Алексей Викторович Нагорный, National Technical University of Ukraine “Kyiv Polytechnic Institute” Peremogy av., 37, Kyiv, Ukraine, 03056

Assistant of the department

Department of Electrochemical Productions Technology

Алкесандр Генадиевич Линючев, National Technical University of Ukraine “Kyiv Polytechnic Institute” Peremogy av., 37, Kyiv, Ukraine, 03056

Assistant of the department

Department of General and Inorganic Chemistry

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Published

2014-12-11

How to Cite

Букет, А. И., Линючева, О. В., Нагорный, А. В., & Линючев, А. Г. (2014). Electrochemical chlorine sensor based on the halide electrolyte with mediator for accidental releases. Eastern-European Journal of Enterprise Technologies, 6(6(72), 42–47. https://doi.org/10.15587/1729-4061.2014.30566

Issue

Section

Technology organic and inorganic substances