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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Raman Electrochemical Flow Cell, active area: 3.5 cm2, volume: 4.5 mL (redox.me)
Read moreThis cell combines two classical analytical techniques such as electrochemistry and Raman spectroscopy, to obtain in-situ chemical information about the reactions taking place during an electrochemical experiment. It consists mainly of three elements: (i) sample holder with Tantalum (formerly Copper) foil serving as an electric contact to working electrode surface, (ii) chamber in which reference and counter electrodes are installed together with electrolyte inlet and outlet and (iii) lid which seals the cell and holds the Sapphire window. The sample consisting of a thin film of electrochemically active material deposited on a rigid or flexible substrate (working electrode) is loaded from the bottom via magnetic or screw mount. The counter or/and reference electrodes are mounted in a top casing (either 2-, or 3-electrode setup. The oval counter electrode made of e.g. Platinum wire assures uniform distribution of the field lines along the path to working electrode. During an experiment Raman laser is focused onto the surface of a thin film working electrode through a transparent Sapphire window and thin layer of electrolyte (total optical path of 3.25 mm). The electrolyte thickness of 2.25 mm ensures free diffusion of ions (e.g. protons) and its counter ions.
The electrode adapter for installing 6 mm dia. electrodes inside Raman ECFC is available here. It enables using disk electrode, plug with clip or any other rod-shape electrode (e.g. graphite rod) or current collector (e.g. metal mesh, graphite coated metal mesh, metal foil, graphite coated metal foil, metal foam, carbon woven and non-woven fabrics, carbon paper, etc.) as working electrode instead of a flat electrode in default Raman ECFC configuration.
The screw mount variant of Raman ECFC can be converted into GDE Raman ECFC by using Gas Compartment. This conversion allows installation of Gas Diffusion Electrodes as working electrode.
The cell elements are constructed with materials that are inert to the sample (PEEK, Fluorocarbons). It well fits aqueous (FKM 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 (in an external reservoir).
Application note:
This cell can be used to track kinetic phenomena such as the near-surface proton concentration changes during oxidation and reduction reaction at working electrode. It can be also used to identify materials such as carbon, metal oxides, polymers and electrolytes, and to determine their structure and distribution. Various metals are suitable for this cell as auxiliary electrode including Platinum, Gold and Silver.Specification:
nominal exposure area: 3.5 cm2
electrolyte volume: 4.5 mL
optical path (including Sapphire window): 3.25 mm
electrode plug diameter: 6 mmIntrastat data:
HS Code: 90275000
Country of Origin: Sweden
NET weight: 200 gProduct includes:
1 x chamber
1 x Reference electrode (Ag/AgCl, or Ag/Ag+), 30mm
1 x Metal wire auxiliary electrode – ST 0.6/150 mm, Platinum
1 x Sapphire window – 0054PSPCM
1 x lid
1 x WE Tantalum contact
1 x sample holder
1 x plug – 0005CPEMA -
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 -
Working Disk Electrode – PEEK body 6 mm dia., 70 mm long (redox.me)
Read moreThis is a Standard Working Electrode in which a disk of electrode material (glassy carbon, gold, platinum, silver, boron-doped diamond, palladium, titanium, and copper) is embedded into the PEEK body by a compressed PTFE or PEEK sleeve. It well fits aqueous and organic solvent electrolyte requirements. If you need a different disk material, please contact us.
Application note
The disk electrode is immersed in the ion-conducting solution as a working electrode. An electric current is passed between the working electrode and the counter electrode for a certain amount of time. After the experiment, the electrode should be washed several times with ethanol or isopropanol. If the disk electrode was used as a current collector with other electrode material, or when there are visible traces of material absorption, it should be polished down to the mirror surface after the experiment is completed. Store the working disk electrode in the glass tube sealed with an O-ring (all included in the package). Instruction on maintenance is provided on the Electrode Polishing Kit product page.Specification
disk diameter: 2, 3, 4 or 5 mm
disk length: 1.5 mm for BDD, 3 mm for the rest
body material: PEEK with PTFE or PEEK sleeve
body diameter: 6 mm
body length: 70 mmIntrastat data
HS Code: 85451900
Country of Origin: Sweden
NET weight: 100 gProduct includes
1x working disk electrode
1x O-ring
1x glass tube -
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?
