From Setups to Signals: What Scientists Are Saying About Electrochemical Consumables
Posted by Natalia Pigino on

Electrochemistry lives or dies on the details: the reference electrode’s stability, the cell geometry, the electrode surface, and the wiring/fixtures you use for EIS. Small choices in consumables can shift baselines, inject noise, or mask real kinetics. Below is a quick tour of credible sources from the last two years and why their insights matter when you’re selecting consumables for your next experiment.
1) PCCP (RSC) Review (2024) — “Electrochemical impedance spectroscopy: from breakthroughs to applications”
What it says: A state-of-the-art review of EIS across materials/interfacial science, stressing model validity, frequency windows, and artifacts control. RSC Publishing
Why it matters for consumables: Good EIS isn’t just firmware—lead placement, cell design, shielding, and reference stability matter. Stock low-noise cables/clips, reliable reference electrodes, and cells with tight geometry control to reduce parasitics.
2) Applied Physics (AIP) Critical Review (2025) — “Analysis of electrochemical impedance…”
What it says: A deep critique of how EIS is interpreted; highlights pitfalls with equivalent-circuit fitting and the need for robust, reproducible cell setups. AIP Publishing
Why it matters: If your fixtures/consumables vary, your fit varies. Prioritize reproducible three-electrode cells, consistent electrode spacing, and reference electrodes with known impedance characteristics.
3) Electrochimica Acta (2024) — High-pressure RDE design (200 bar, 200 °C)
What it says: Demonstrates an RDE setup for harsh conditions, enabling controlled mass-transport studies under pressure/temperature with voltammetry and EIS. ScienceDirect
Why it matters: Even at ambient, RDE quality (tip roundness, shaft alignment, bearings, seals) governs data quality. Keep spare tips, gaskets, and shafts and replace them on a schedule to preserve hydrodynamics.
4) Journal of Power Sources / Electrochimica Acta family (2025) — Three-electrode cells for solid-state batteries
What it says: Shows why three-electrode (3E) configurations (with a dedicated reference, e.g., LTO-based) are essential to deconvolute anode/cathode processes in solid-state systems. ScienceDirect+1
Why it matters: If you’re diagnosing full cells or solid electrolytes, a 3E adapter + compatible reference is often non-negotiable. Stock 3E cell kits, reference capillaries, and solid-state-friendly fixtures.
5) Analyst (RSC) (2024) — Sulfide-resistant Ag|AgCl reference electrode
What it says: Introduces a sulfide-resistant Ag|AgCl reference and compares long-term performance by EIS and voltammetry, addressing common failure modes in sulfide media. RSC Publishing
Why it matters: Reference drift kills reproducibility—choose application-matched REs (e.g., sulfide-resistant for sulfide electrolytes) and keep storage solutions and maintenance kits on hand.
6) CMOS-integrated Ag/AgCl quasi-reference electrode (2024)
What it says: A method to electroplate Ag/AgCl onto CMOS top-metal pads—evidence of the push toward miniaturized, stable references for sensing. UCL Discovery+1
Why it matters: Even if you’re not on-chip, the takeaway is stability/size: consider miniature REs, junction designs, and low-leakage junctions when building compact cells or micro-EIS rigs.
7) Screen-Printed Electrodes (2024) — Long-term stability study
What it says: Reports long-term stable screen-printed reference/working electrodes for voltammetric and potentiometric use—addressing notorious drift in miniaturized platforms. ScienceDirect
Why it matters: For teaching labs, sensors, and high-throughput screening, SPE kits with documented stability save time. Keep packs of SPEs, conditioning protocols, and storage cases in your consumables mix.
8) RDE Protocols & Reproducibility (2023–2024) — Multi-partner best-practice efforts
What it says: Community efforts (NREL and partners; RSC community paper) to standardize RDE measurement protocols to reduce lab-to-lab spread. NREL Docs+1
Why it matters: Standard parts lead to standard data. Stock pre-polished disks, ink-making supplies, pipettes/tips, calibration standards, and abrasives matched to accepted protocols.
Practical Takeaways
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Stabilize the reference. Match your RE chemistry to the medium (e.g., sulfide-resistant Ag|AgCl in sulfide systems) and replace/refresh electrolyte bridges routinely. RSC Publishing
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Upgrade the cell, not just the software. Use 3-electrode hardware and keep geometry consistent; interpret EIS only after minimizing fixture artifacts. AIP Publishing+1
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Treat RDE like a precision instrument. Maintain tips, seals, shafts; replace before hydrodynamics drift; stock ink prep consumables. ScienceDirect+1
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For SPE work, plan for longevity. Choose SPEs validated for long-term stability and store them properly. ScienceDirect
References
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RSC PCCP review on EIS (2024). RSC Publishing
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AIP Applied Physics critical review on EIS analysis (2025). AIP Publishing
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Electrochimica Acta: High-pressure RDE design (2024). ScienceDirect
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Solid-state three-electrode cell studies (2025). ScienceDirect+1
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Sulfide-resistant Ag|AgCl reference (2024). RSC Publishing
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CMOS Ag/AgCl quasi-RE (2024). UCL Discovery+1
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Long-term stable screen-printed electrodes (2024). ScienceDirect
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RDE best-practice/standardization (2023–2024). NREL Docs+1