Sample Holder 25 mm x 25 mm (redox.me)
The sample holder (known also as flat specimen holder) is used for holding flat, circular or square/rectangular samples. It enables contacting the sample from the front (e.g. ITO/FTO glass, Monolayer Graphene on SiC, or Boron-Doped Diamond thin film on various substrates) and from the back (e.g. metal specimen, Glassy Carbon plate, Boron-Doped Diamond plate). The default nominal aperture is 1cm2, but other value can be provided on request. The large electrical contact with Tantalum (formerly Copper) foil surface (not being in contact with an electrolyte) ensures optimal current collection by minimizing electrical resistance and unifying current distribution. The rod with electrical connection has a diameter of 6 mm, which makes the sample holder compatible with our voltammetry cells and jacketed cells, as long as it fits in. We may also provide an adapter to install this sample holder in openings larger than 6 mm dia.
The sample holder elements are constructed with materials that are inert to the electrochemical system (PEEK, Fluorocarbons). It well fits aqueous (FKM/EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is well sealed which prevents the electrolyte to leak inside.
Application note
The sample holder is used largely for corrosion studies. It can be installed in a beaker type cell as well as in testing environments such as open water reservoirs, cans, tanks etc. It can also be used wherever it is necessary to make an electrode using a thin layer of an active material deposited on a flat substrate (conducting or insulating).
Specification
nominal aperture range: 0.008 cm2 (1 mm dia.) – 4.155 cm2 (23 mm dia.)
minimum aperture: 0.008 cm2 (1 mm dia.)
maximum aperture: 4.9 cm2 (23 mm dia.)
electrical connection diameter (rod): 6 mm
minimum substrate size:
| nominal aperture | minimum substrate size |
| 0.008 cm2 (1 mm dia.) | 10 x 10 mm2 (square) or 12 mm dia. (circular). |
| 0.196 cm2 (5 mm dia.) | 7 x 7 mm2 (square) or 10 mm dia. (circular). |
| 0.283 cm2 (6 mm dia.) | 8 x 8 mm2 (square) or 11 mm dia. (circular). |
| 0.385 cm2 (7 mm dia.) | 9 x 9 mm2 (square) or 12 mm dia. (circular). |
| 1 cm2 (11.3 mm dia.) | 13 x 13 mm2 (square) or 16 mm dia. (circular). |
| 1.76 cm2 (15 mm dia.) | 17 x 17 mm2 (square) or 20 mm dia. (circular). |
| 3 cm2 (19.5 mm dia.) | 22 x 22 mm2 (square) or 24 mm dia. (circular). |
| 3.5 cm2 (21 mm dia.) | 23 x 23 mm2 (square) or 25 mm dia. (circular). |
| 4.155 cm2 (23 mm dia.) | 25 x 25 mm2 (square only) |
maximum substrate size: 25 x 25 mm2
maximum sample thickness: 4 mm
contact type: front or back
Intrastat data
HS Code: 90309000
Country of Origin: Sweden
NET weight: 100 g
Product includes
1 x chamber
1 x lid
1 x contact (Tantalum foil)
1 x rod with electrical connection
Select configuration
Operating Video Manual:
Related products
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Metal Wire Auxiliary Electrode – 50HX15 0.6/250 mm (redox.me)
Read moreThe metal wire counter (auxiliary) electrode is provided in the electrochemical cell as a current sink to shunt excess current away from the reference electrode. The counter electrode is generally chosen to be inert under reaction conditions, typically platinum, rhodium, palladium, or gold wire. It well fits aqueous (FKM O-Ring) and organic solvent (FFKM O-Ring) electrolyte requirements.
Application note
The metal wire electrode is immersed in the ion-conducting solution as a counter electrode. An electric current is passed between the working electrode and the counter electrode for a certain amount of time. After the process, the electrode should be washed several times with isopropanol or ethanol and dried under the nitrogen flow. Store the metal wire electrode in the glass vial sealed with O-rings (all included in the package).Specification
helix inner diameter: 4.8 mm
helix outer diameter: 6 mm
number of turns: 12
wire diameter: 0.6 mm
total wire length: 250 mm (215 mm long helix, 35 mm long straight wire)Intrastat data
HS Code: 71101910 (platinum), 71081310 (gold),
Country of Origin: Sweden
NET weight: 100 gProduct includes
1 metal wire electrode with PEEK plug and selected electrical connector
1 O-Ring
1 glass vial -
Nexus
Read moreBuilding on PalmSens’ legacy of providing top-tier solutions for accurate low-current measurements, Nexus delivers an ultra-low-noise performance that exceeds even our existing portable devices, while also supporting measurements up to 1 Ampere.
More information could be found trough link:
https://www.palmsens.com/product/nexus/
- Bi)Potentiostat/ Galvanostat/ Impedance analyzer
- FRA / EIS: 10 μHz up to 1 MHz
- 11 current ranges: 100 pA to 1 A
- Dual EIS with second sense electrode
- Script your experiments using MethodSCRIPT
- Use with PSTrace software for Windows
Versatile
Our high-end instrument, the Nexus, is a Potentiostat, Galvanostat, and optional a Frequency Response Analyser (FRA) for Electrochemical Impedance Spectroscopy (EIS). The Nexus has a large potential range (-12V to +12V) and current range (100 pA to 1 A) with a high resolution and low noise.
The research software PSTrace makes using the Nexus a breeze. The scripting language MethodSCRIPT gives a user full control when needed. Looking for a multi-channel instrument? Just stack multiple instruments on top of each other.
Configurable
Nexus comes in different configurations:
- optional EIS/FRA module with maximum frequency of 1 MHz
- optional BiPotentiostat module for second WE
Standard included
Carrying padded bag containing:
- High quality, double shielded cell cable with
2 mm banana connectors for Working, Sense, Counter, Reference electrode and Ground - Chassis ground cable with croc clip (4 mm)
- Hardware Sync Link cable
- Crocodile clips
- Calibration report
- Dummy cell
- USB cable and Ethernet cable
- Manual and Quick Start document
- PSTrace software for Windows
- iR-compensation (ohmic drop compensation) module
- Second Sense lead cable
S2 and BiPot
Nexus includes a Second Sense lead (S2) and an optional BiPotentiostat (BiPot) module.
S2 – Additional voltage (potential) measurement point
BiPot – Independent second working electrode for simultaneous current measurement
These two features are independent and serve distinct purposes:
- S2 (Second Sense Lead)
S2 acts as an additional voltage-sensing input, with the same specifications as the main reference electrode. It measures the potential at a specific point in the cell and, because the current at that point is known, it can also be used to calculate impedance. - BiPot (BiPotentiostat Module)
The BiPot module introduces a second working electrode (WE2), operating versus the same reference and counter electrodes as the main channel. In BiPotentiostat mode, both working electrodes (WE1 and WE2) are recorded simultaneously. WE2 operates in potentiostatic mode, meaning it can independently control its potential and measure its current.
Why choose the Nexus?
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Standard electrochemical cell setup (redox.me)
Read moreThis is a stationary solution standard electrochemical (electrolytic) cell for measurements of electrodes in a form of:
a) rod/disc (6 mm dia.),
b) thin film deposited on a flat substrate (using a sample holder) and
c) free-standing membrane (using the basic sample holder).
The working, counter, and reference electrodes are mounted in a top casing either in 2-, or 3-electrode setup. The cell has two spare ports for connection of e.g. thermometer, Clark electrode, pH meter electrode, or other 6 mm dia. electrode/probe.
The cell elements are constructed with materials that are inert to the sample (glass and PEEK). It well fits aqueous (EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is gas-tight and can be used when the removal and exclusion of contaminants such as oxygen and water is required by bubbling of an inert gas through the electrolyte. The jacketed model is available here.
Application note
The reference electrode tip should be placed close to a working electrode center. This will ensure a low potential drop throughout the electrolyte solution for low-current experiment. Various auxiliary electrodes are suitable for this cell including metal wire and metal foil electrodes as well as graphite rod. The bubbling of gas through the solution must be stopped prior to experiment.Specification:
maximum electrolyte volume: 100, 150, 200, 250, 350, 500 or 1000 mL
electrode plug diameter: 6 mm
number of electrode ports: 5
vial material: borosilicate 3.3 glassIntrastat data:
HS Code: 90309000
Country of Origin: Sweden
NET weight: 200 g (100, 150 mL), 300 g (200, 250, 350 mL), 400 g (500 mL), 600 g (1000 mL) -
AC1.GP. Electrochemical sensor with a working electrode of guaranteed purity
Read moreBasic amperometric three-electrode sensor with patented structure made by thick film technology.
Dimensions: 25.40 mm x 7.26 mm x 0.63 mm
WE material: gold, platinum, silver, copper, iron, nickel, cobalt, chromium, tantalum, irridium, rhenium, magnesium, palladium, zirconium and others
*Selection of sensor electrode materials other than those listed above is possible upon agreement with the customer.
The sensor is made on a corundum ceramic base. Working, reference and auxiliary electrodes are applied to this surface. Working, reference and auxiliary electrodes are made of different materials. At the end of the sensor there is a contact field that is connected to the active part by silver conductive paths that are covered with a dielectric protective layer. The working electrode of the sensor with a diameter of 2 mm is made of a material of guaranteed purity of up to 99.99 % depending on the selected material– standard layer thickness 0.0125 mm.
We also offer a working electrode made of polished gold AC1P.W*.R*, with homogenous surface with roughness less than 1 µm.
We also offer activated graphite sensors on customer request.