TY - JOUR
T1 - Instantaneously usable screen-printed silver/silver sulfate reference electrode with long-term stability
AU - Komoda, Masato
AU - Shitanda, Isao
AU - Hoshi, Yoshinao
AU - Itagaki, Masayuki
PY - 2019/6
Y1 - 2019/6
N2 - We developed an instantaneously usable screen-printed silver/silver sulfate (Ag/Ag2SO4)reference electrode with long-term stability. The reference electrode was composed of a Ag layer, a Ag/Ag2SO4 layer, an inner electrolyte layer, and a liquid junction layer printed successively on a polyimide substrate. The liquid junction and inner electrolyte layers were prepared using a silica gel–poly(vinylidene difluoride)ink. The open-circuit potentials in different electrolyte solutions were compared to that measured using a commercial reference electrode. The fabricated reference electrode stabilized the potential shift within 30 min and gave 437 mV vs. saturated KCl/Ag/AgCl measured in a 1 M KNO3 solution; the result was in good agreement with the theoretical value. Furthermore, the fabricated reference electrode remained stable for 20 days. This Ag/Ag2SO4 reference electrode showed potential for application in measurement systems where contamination by chloride ions is not desirable.
AB - We developed an instantaneously usable screen-printed silver/silver sulfate (Ag/Ag2SO4)reference electrode with long-term stability. The reference electrode was composed of a Ag layer, a Ag/Ag2SO4 layer, an inner electrolyte layer, and a liquid junction layer printed successively on a polyimide substrate. The liquid junction and inner electrolyte layers were prepared using a silica gel–poly(vinylidene difluoride)ink. The open-circuit potentials in different electrolyte solutions were compared to that measured using a commercial reference electrode. The fabricated reference electrode stabilized the potential shift within 30 min and gave 437 mV vs. saturated KCl/Ag/AgCl measured in a 1 M KNO3 solution; the result was in good agreement with the theoretical value. Furthermore, the fabricated reference electrode remained stable for 20 days. This Ag/Ag2SO4 reference electrode showed potential for application in measurement systems where contamination by chloride ions is not desirable.
KW - Instantaneously usable
KW - Long-term stable
KW - Reference electrode
KW - Screen-printing
KW - Silver/silver sulfate
UR - http://www.scopus.com/inward/record.url?scp=85066286021&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85066286021&partnerID=8YFLogxK
U2 - 10.1016/j.elecom.2019.05.019
DO - 10.1016/j.elecom.2019.05.019
M3 - Article
AN - SCOPUS:85066286021
VL - 103
SP - 133
EP - 137
JO - Electrochemistry Communications
JF - Electrochemistry Communications
SN - 1388-2481
ER -