Sensors (Feb 2018)

Investigation of Sensitivities and Drift Effects of the Arrayed Flexible Chloride Sensor Based on RuO2/GO at Different Temperatures

  • Shi-Chang Tseng,
  • Tong-Yu Wu,
  • Jung-Chuan Chou,
  • Yi-Hung Liao,
  • Chih-Hsien Lai,
  • Siao-Jie Yan,
  • Ting-Wei Tseng

DOI
https://doi.org/10.3390/s18020632
Journal volume & issue
Vol. 18, no. 2
p. 632

Abstract

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We investigate the temperature effect on sensing characteristics and drift effect of an arrayed flexible ruthenium dioxide (RuO2)/graphene oxide (GO) chloride sensor at different solution temperatures between 10 °C and 50 °C. The average sensor sensitivities according to our experimental results were 28.2 ± 1.4 mV/pCl (10 °C), 42.5 ± 2.0 mV/pCl (20 °C), 47.1 ± 1.8 mV/pCl (30 °C), 54.1 ± 2.01 mV/pCl (40 °C) and 46.6 ± 2.1 mV/pCl (50 °C). We found the drift effects of an arrayed flexible RuO2/GO chloride sensor in a 1 M NaCl solution to be between 8.2 mV/h and 2.5 mV/h with solution temperatures from 10 °C to 50 °C.

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