Platinum Ring Electrode with Salt Bridge

Product Overview

The FrankLab Platinum Ring Electrode with Salt Bridge integrates:

•A high-purity platinum ring (>99.99% Pt)

•A glass or quartz tube housing

•An internal salt bridge channel

•A gold-plated copper terminal

•A chemically resistant PTFE head and O-ring seal

This electrode design provides electrochemical isolation between the working region and the bulk electrolyte, enabling:

•Stable measurement of reaction intermediates

•Suppression of solution resistance effects

•Protection from local pH fluctuations

•More accurate detection of species generated at the ring

This electrode is especially used in:

•Mechanistic electrochemistry

•H₂O₂ detection / ORR intermediate analysis

•Precious-metal catalysis studies

•Flow cells & micro-environment control

•RRDE-like kinetic monitoring (without rotation)

•Highly sensitive analytical electrochemistry

Key Features

• High-Purity Platinum Ring (>99.99%)

•Chemically inert

•Wide electrochemical stability window

•Excellent catalytic activity

•Suitable for CV, LSV, EIS, amperometry

• Integrated Salt Bridge (Internal Channel)

The built-in salt bridge:

•Reduces solution resistance

•Ensures ionic conductivity

•Minimizes contamination between chambers

•Maintains a stable environment around the Pt ring

• Glass (or Quartz) Tube Electrode Body

•High rigidity

•Transparency for visual inspection

•Chemically resistant

•Low adsorption and excellent inertness

• PTFE Electrode Cap + O-Ring Seal

•Leak-proof and chemically resistant

•Easy installation into standard electrochemical cells

• Gold-Plated Copper Terminal（FrankLab 全系列统一配置）

•Low resistance connection

•Corrosion resistant

•Ensures stable long-term measurement quality

Technical Specifications

How the Salt Bridge Enhances Performance

1. Reduces Ohmic Drop

The internal salt-filled channel ensures uniform ionic conductivity.

2. Stabilizes Local Electrochemical Environment

Preventing mixing between bulk electrolyte and the ring region allows more precise species detection.

3. Isolates Chemical Interference

Ideal for detecting unstable or short-lived intermediates.

4. Improves Analytical Sensitivity

Particularly important for:

•ORR → H₂O₂ detection

•Catalytic turnover number (TON) measurements

•Multi-step reaction tracking

Recommended Applications

Advanced Electroanalytical Chemistry

•Peroxide detection

•ORR mechanism studies

•CO₂RR intermediate quantification

Materials & Catalysis Research

•Screening Pt-based electrocatalysts

•Catalyst durability studies

Electrochemical Engineering

•Flow-cell research

•Salt-bridge controlled local electrochemistry

Fundamental Reaction Mechanism Studies

•Multi-electron transfer systems

•Radical intermediate detection

•Coupled homogeneous–heterogeneous reactions

Customization Available

FrankLab supports full customization:

•Pt wire diameter: 0.1–1.0 mm

•Ring inner & outer diameter

•Glass tube length & diameter

•Salt bridge electrolyte type (KCl, NaCl, LiCl, custom)

•Body material (glass / quartz / PEEK tube)

•Terminal material (default: gold-plated copper)

•Multi-ring configurations

Engineering drawings + quotation within 24 hours.

For Custom Orders or Inquiries

If you have custom requirements or any additional questions, feel free to contact us:

Email: support@franklab.shop

Why Choose FrankLab?

FrankLab Focused on electrochemical & research materials

•Stable quality for repeatable experiments

•Flexible customization capability

•Trusted by universities, institutes, and industrial R&D labs