High-Pressure Basic Sample Holder - Stainless Steel 316L contact, 4 mm max. sample thickness

High-Pressure Basic Sample Holder - Stainless Steel 316L contact, 4 mm max. sample thickness

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Introduction

The High-Pressure Basic Sample Holder is a high-pressure variant of the popular Basic Sample Holder. In this design, a metal wire serves as the electrical conductor between the electrode material, either free-standing or deposited on a substrate, and the external circuit.

Key Features

• Chemically Resistant Construction: PEEK body components are used in all areas in direct contact with the electrolyte, ensuring excellent chemical stability and durability.
• Robust Mechanical Design: Integrated stainless steel (316L) fittings provide structural strength and long-term reliability.
• Customizable Current Collector: User-selectable current-collecting wire options include tantalum, stainless steel (316L), titanium, copper, and nickel, with additional materials available upon request.
• Application-Specific Flexibility: Alternative wire materials are available for use in aggressive conditions such as hydrofluoric acid or strong, hot alkaline environments where tantalum is not suitable.
• Fully Immersible Contact: The metal contact can be completely immersed in the electrolyte without compromising performance.
• PEEK Fastening Components: Screws used for securing the sample and mount are made of PEEK, maintaining chemical compatibility throughout the system.
• Broad Sample Compatibility: Suitable for a wide range of materials, including inorganic and organic plates, free-standing membranes, and thin films on both flexible and rigid substrates.

Application note

The High-Pressure Basic Sample Holder is designed for electrochemical experiments requiring elevated pressures while maintaining reliable electrical contact and chemical compatibility with a wide range of electrolytes. It is particularly suited for fundamental research, materials screening, and durability testing under realistic operating conditions. Typical applications include high-pressure electrochemistry, catalyst and electrode material testing, membrane and coating evaluation, and studies of electrochemical reactions in pressurized aqueous or non-aqueous electrolytes.
Generally, the electrode is fabricated by fixing the electrochemical active sample into the holder using a screw. Such electrode is immersed in the ion-conducting solution as a working electrode or counter electrode. An electric current is passed between the working electrode and the counter electrode for a certain amount of time. Metal wire contact is permanently installed in the PEEK body. The holder is designed to be used multiple times. Before use, the holder should be cleaned, especially in the area of the metal wire. This is mainly to remove residues from previous samples, as they may hinder the establishment of good electrical contact.
The holder was designed for installation in Swagelok fittings suitable for 6 mm diameters. However, other fittings can also be used when installing the holder in a high-pressure cell. In all cases, we recommend using PTFE ferrules.

Specification

MSE offers a range of electrode holders. Please contact us for more information.