Optimization strategy of Ag/AgCl thin film electrodes approached by chlorination process for electrochemical response materials

Khaerudini, Deni Shidqi; Rahman, Faisal; Alva, Sagir

doi:10.1016/j.matchemphys.2019.122294

Cited by 8 publications

(10 citation statements)

References 17 publications

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“…Besides, based on the data presented in Table 2, the linear range and the longest LOD were at the scan rate of 60 mV/s. It is inseparable from the thickness of the AgCl layer formed on the Ag surface, which is not uniform for each SPE electrode produced so that the sensitivity of the Cl ion sensor varied [2,16,23]. At scan rates of 20 and 40 mV/s, the AgCl layer formed did not completely cover the area of the Ag electrode.…”

Section: Chloride Sensor Responsementioning

confidence: 99%

“…In addition, it is affected by the thickness of the AgCl layer, which is thicker and denser as AgCl tends to be an insulator. Therefore, it causes the surface resistivity of the SPE Ag/AgCl to increase, and it contributes to a decrease in sensor sensitivity [16,22,23].…”

Section: Chloride Sensor Responsementioning

confidence: 99%

“…Based on the Nernst equation, R is the ideal gas constant with a value of 8.314 J/K mol, while F is a Faraday number of 96.485 C/mol, n = 1 and at a temperature of 298 K, so that (6) can be determined into: = 0 − 59. 16 [ − ] + 59. 16 [ ] (7)…”

Section: Chloride Sensor Responsementioning

confidence: 99%

“…One of the most common types of ISE used in testing Cl-ions is the Ag/AgCl electrode. The surface of the Ag/AgCl electrode is very sensitive to changes in the concentration of Cl-ions in a sample [2,10,11,15,16]. In general, the Ag/AgCl electrode shape is like a rod and large.…”

Section: Introductionmentioning

confidence: 99%

“…Generally, the Ag/AgCl electrodes are fabricated through some methods such as the oxidation process with solvents and electrochemical processes such as asymmetric square wave voltammetry (aSWV), open current potential (OCP), or anodization process at certain voltages [2,10,16,17]. Besides, the Ag/AgCl fabrication process using the Cyclic Voltammetric (CV) technique has also been previously carried out but only at one scan rate [18].…”

Section: Introductionmentioning

confidence: 99%

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CHLORIDE SENSOR FABRICATION BASED ON SPE Ag/AgCl THROUGH CYCLIC VOLTAMMETRIC TECHNIQUE: SCAN RATE EFFECT

Asadullah

Alva

Rinaldi

et al. 2021

Sinergi

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The Cyclic Voltammetric (CV) technique is one of the Ag/AgCl fabrication processes. In electrochemical processes using this CV technique, the microstructure of the surface of a substrate or electrode can affect the scan rate. Thus, this study aims to identify the scan rate effect of the Cl-ion sensor fabrication process using the CV technique on the performance of the Cl-ion sensor. First, the CV process was carried out in one cycle to grow the AgCl layer on the Ag surface. Then, this process was carried out at varied scan rates of 20, 40, 60, 80, and 100 mV/s. After completing the Ag/AgCl fabrication process, it was followed by the characterization process, selectivity coefficient test, lifetime test, and validation test to compare the test results of the Cl SPE Ag/AgCl ion sensor with Ag/AgCl commercial. The results showed that the optimum Cl-ion sensor response was obtained at the scan rate of 60 mV/s. Then, based on the validation test, the Cl-ion in the two samples did not show significant differences. Therefore, it indicates that the SPE Ag/AgCl ion sensor has the same performance as the Ag/AgCl commercial.

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Section: Chloride Sensor Responsementioning

confidence: 99%

Section: Chloride Sensor Responsementioning

confidence: 99%