Browse Data ESRA-RFB-0003 RFB Public
Zirui Wang
0000-0003-4346-4668
Joaquin Rodriguez-Lopez
Automated Redox Titrations via Interdigitated Electrode Arrays
2025_ZiruiWang_JoaquinRodriguezLopez_ACS.Meas.Sci.Au._5c00128 ← click to see all uploads with this sample ID
10.1021/acsmeasuresciau.5c00128 ↗
2026-08-13 14:27:59
e939edae-be19-417f-aa5f-a18e18b4239b
How to Cite
1 — Cite the dataset paper
↗ View paper
2 — Cite the ESRA platform
Galib, M. et al. (2026). ESRA: Energy Storage Research Assistant. Argonne National Laboratory. https://github.com/MusannaGalib/esra-platform
CC BY 4.0  ·  Data shared under Creative Commons Attribution 4.0

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Other datasets with the same sample ID (2025_ZiruiWang_JoaquinRodriguezLopez_ACS.Meas.Sci.Au._5c00128).

Type Group Date Project Link
Raman Joaquin Rodriguez-Lopez 2026-08-13 14:28 Automated Redox Titrations via Interdigitated Electrode Arrays same sample
NMR Joaquin Rodriguez-Lopez 2026-08-13 14:27 Automated Redox Titrations via Interdigitated Electrode Arrays same sample
FEM Joaquin Rodriguez-Lopez 2026-08-13 14:27 Automated Redox Titrations via Interdigitated Electrode Arrays same sample

Materials Studied 6 materials

Material Family Role(s) Ion
Polypyrrole (PPy)  · Conducting polymer film
Titrated on an interdigitated array electrode in aqueous media
Made in this work Electrochemical deposition
  1. Other — Electrochemically pre-cycle the IDA in 0.5 M sulfuric acid to improve film adhesion
    substrate: interdigitated electrode array (IDA)concentration: 0.5 M sulfuric acid
    Main paper p. 4, Electrode Cleaning and Validation / Electrodeposition
  2. Electrodeposit — Oxidative electropolymerisation of pyrrole onto the WE 1 array
    solvent: MeCNscan rate: 500 mV/ssubstrate: IDA WE 1 arraytemperature: room temperatureconcentration: 10 mM pyrrolepotential window: open circuit potential to 1.3 V vs Ag/AgClcounter electrode: graphite rodreference electrode: Ag/AgCl/KCl (1 M)supporting electrolyte: 0.1 M TBAPF6 counter array bias: WE 2 held at 0 V vs Ag/AgCl
    Main paper p. 4, Electrochemical Measurements + Electrodeposition
 Conducting polymer
Other · as named
 Working electrode, Redox-active species —
PTAP redox-active polymer  · PTAP
Made in this work Electrochemical deposition
  1. Electrodeposit — Reductive electropolymerisation of PTO-2NO2 onto the WE 1 array
    solvent: MeCNscan rate: 500 mV/ssubstrate: IDA WE 1 arrayatmosphere: Ar-filled gloveboxtemperature: room temperatureconcentration: 1 mM PTO-2NO2potential window: open circuit potential to −3.0 V vs Fc/Fc+counter electrode: graphite rodreference electrode: PPy quasi-reference electrode calibrated with Fc/Fc+ internal standardsupporting electrolyte: 0.1 M LiClO4 counter array bias: WE 2 held at 0 V vs Fc/Fc+monomer provenance: PTO-2NO2 synthesized according to previous reports with slight modification (ref 51)
    Main paper p. 4, Electrochemical Measurements + Electrodeposition; PTO-2NO2 synthesis is separately described immediately above
 Redox-active polymer
Other · as named
 Redox-active species Li
0.1 M LiClO4 in anhydrous acetonitrile  · Non-aqueous supporting electrolyte
Made in this work Electrolyte preparation
  1. Dissolve — Dissolve anhydrous LiClO4 in anhydrous MeCN
    solvent: anhydrous acetonitrile (Sigma-Aldrich)concentration: 0.1 M
    Main paper p. 4, Chemicals and Materials
  2. Purge — Purge ART solution with argon before use (formulation mixing time/order otherwise not reported)
    duration: 40 minatmosphere: Ar
    Main paper p. 4, Redox Titration
 Nitrile solvent electrolyte
Liquid · as named
 Electrolyte, Solvent Li
Ferrocene  · Ferrocene mediator
Redox standard / mediator
Purchased / commercial Sigma-Aldrich · 98%
Redox-active organic
Other
 Redox-active species —
Ag/AgCl in 1 M KCl  · Reference electrode
Purchased / commercial
Ag/AgCl reference electrode
Other · as named
 Reference electrode —
0.1 M phosphate-buffered saline, pH 7.4  · Aqueous buffer
Made in this work Electrolyte preparation
  1. Dissolve — Prepare/use 0.1 M phosphate buffer solution at pH 7.4; exact mixing order/time is not reported
    solvent: waterconcentration: 0.1 M pH: 7.4salts: potassium phosphate monobasic (≥99%) + dibasic (≥98%), Sigma-Aldrich
    Main paper p. 4, Chemicals and Materials + Electrode Cleaning and Validation
 Aqueous
Liquid
 Electrolyte —

Declared for sample 2025_ZiruiWang_JoaquinRodriguezLopez_ACS.Meas.Sci.Au._5c00128 — shared by every dataset on this sample.

Experiment Metadata

Visibility public
Electrolyte PPy ART: 0.2 mM Ruhex in 0.1 M or 0.5 M KCl (aqueous); PTAP ART: 0.5 mM Fc in MeCN with 0.1 M LiClO₄; PPy deposition: 10 mM pyrrole in MeCN with 0.1 M TBAPF₆; PTAP deposition: 1 mM PTO-2NO₂ in MeCN with 0.1 M LiClO₄; Electrode cleaning: 0.1 M PBS (pH 7.4) with 0.1 M KNO₃
Active Material PPy (polypyrrole, electrodeposited on WE 1) + Ru(NH₃)₆³⁺/²⁺ (Ruhex) redox mediator; PTAP (pyrene-4,5,9,10-tetrone azo polymer, electrodeposited on WE 1) + ferrocene (Fc/Fc⁺) redox mediator
Publication Doi 10.1021/acsmeasuresciau.5c00128
Concentration Mm 0.2
Institution Code ESRA
Potential Window PPy: charging 0.3–0.6 V vs Ag/AgCl; titration CV −0.4 to 0.2 V vs Ag/AgCl; PPy electrodeposition: 0 to 1.3 V vs Ag/AgCl; PTAP: charging −1.1 to −2.0 V vs Fc/Fc⁺; electrodeposition −3.0 to 0 V vs Fc/Fc⁺
Measurement Technique utomated redox titration (ART): (1) baseline CV on WE 2 array; (2) chronoamperometric charging of WE 1 (30 s); (3) titration + post-titration CVs on WE 2 array; (4) baseline subtraction and charge integration; controlled via bipotentiostat + Python (Hard Potato library) + Arduino multiplexer

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