Low price, compact, easy to use potentiostat for cyclic voltammetry
Available with electrochemical cell and electrodes; everything you need to get started
The Ossila Potentiostat is a powerful measurement device for performing cyclic voltammetry. The device is the flagship product of our new electrochemistry range and is suitable for both experienced chemists and newcomers to the field. Available at a low price with free worldwide shipping and a hassle-free two year warranty, more people than ever can now access one of the most informative techniques for measuring and analysing the electronic properties of materials. No research or teaching lab should be without an Ossila Potentiostat.
What is a Potentiostat?
Potentiostats are control and measurement devices designed to output a controlled potential. Unlike other voltage sources, potentiostats contain feedback circuitry between the output and measured potential. This enables them to maintain a set potential through a circuit with varying resistance by increasing or decreasing the output, ensuring that the measured potential remains constant as per Ohm's Law.
Potentiostatic experiments such as cyclic voltammetry use a three electrode system consisting of a working electrode, a counter electrode, and a reference electrode. These are placed in an electrochemical cell containing the electrolyte solution and a reference solution. During a measurement, the potential of the reference electrode remains fixed while the potentiostat varies the potential of the working electrode. The counter electrode completes the circuit and allows current to flow, counteracting the redox events taking place at the working electrode due to electrochemical reactions in the cell, and ensuring that no current passes between the reference and working electrodes.
What is Cyclic Voltammetry?
Cyclic voltammetry is one of the most useful and commonly used electrochemical analysis techniques. In cyclic voltammetry, a linearly ramping potential is applied between the working and reference electrodes using a potentiostat. This potential is cycled such that the ramp is applied in one direction, then in reverse, forming a triangular wave. Computer software such as the Ossila Cyclic Voltammetry PC software allows the maximum and minimum potentials to be defined as well the number of cycles, the scan rate, and the current range. During the scan, the electrical current is measured between the working and counter electrodes and a duck-shaped plot, known as a cyclic voltammogram, is produced.
The Ossila Potentiostat has been designed specifically for performing cyclic voltammetry with the included PC software. The result is a powerful, but easy to use, potentiostat.
To allow for a wide range of material characterisation, the Ossila Potentiostat is capable of outputting potentials of up 10 V and measuring currents as low as 10 nA. Easy-to-use PC software is included with the system and makes it straight-forward for anyone to run a scan and obtain a cyclic voltammogram.
Wide Potential and Current Range
The Ossila Potentiostat is capable of delivering potentials up to ±7.5 V and can measure currents between ±20 nA and ±200 mA over five ranges.
Quick and Easy
Set up is as simple as plugging it in and installing the PC software. Start measuring within minutes of unboxing the potentiostat.
Compact and Light
At only 12.5 x 18.5 cm, the small size of the Ossila Potentiostat enables it to fit into even the busiest laboratory.
Our intuitive PC software makes it faster and easier to perform cyclic voltammetry measurements.
Low price with no hidden costs; cyclic voltammetry PC software is included and the standard package includes an electrochemical cell and electrodes.
Backed by the Ossila Guarantee
Enjoy expert support from our in-house scientists and engineers, free worldwide shipping, fast and secure dispatch, large order discounts, and our free two year warranty.
For the best value, choose the complete 'with cell' system. Included is everything you need to set up a three electrode cell for cyclic voltammetry: the potentiostat itself, our Cyclic Voltammetry PC software, electrochemical cell glassware, and one of each type of electrode (working, counter, and reference). For a reduced price, the potentiostat can also be purchased as a stand-alone unit.
We're happy with the Ossila Potentiostat. We're currently using it in teaching labs to demonstrate basics of corrosion measurements. It is compact, easy to use, and affordable.
Branislav Dzurnak, Czech Technical University in Prague
The Ossila Potentiostat is small, portable and easy to use. We also bought the three electrode cell and this provides a stable set-up to hold the electrodes in convenient positions.
Top automotive manufacturer
The Ossila Potentiostat has been designed specifically for performing cyclic voltammetry. Controlled by the included software, the system linearly cycles the applied voltage at the working electrode to create a duck-shaped plot of potential versus current. This plot, known as a cyclic voltammogram, reveals a number of important electrochemical properties about the material being investigated.
The reduction and oxidation potentials of a material describe how readily it gains or loses electrons. Reduction occurs when a chemical gains electron(s), and oxidation is when a chemical loses electron(s). Redox potential is an intrinsic property of materials.
The reversibility of a reaction
How reversible a given electrochemical reaction is. For a completely reversible reaction, the concentration of oxidised species and reduced species should be in equilibrium.
Electron transfer kinetics
A quantitative description of electrochemical reversibility; how fast or slow the transfer of electrons is in a reaction. For a reaction to be reversible, electron transfer must be sufficiently fast.
Energy levels of semiconducting polymers
The energy levels of semiconducting materials. This is particularly useful for photovoltaic applications as it provides an estimate for the energy of the highest occupied (HOMO) and lowest unoccupied molecular orbitals (LUMO).
Included with the Ossila Potentiostat
Potentiostat and Cyclic Voltammetry Software
The Ossila Potentiostat
The Ossila Potentiostat with shielded cable and crocodile clips, USB-B cable, and 24 V / 2 A DC power adaptor. Connect to your choice of working electrode, counter electrode, and reference electrode (included with the “with cell and electrodes” option) and start taking measurements in minutes. Designed for cyclic voltammetry, the Ossila Potentiostat has a potential range of ±7.5 V, a potential compliance of ±10 V, and five current ranges from ±20 μA to ±200 mA.
Compact, affordable, and covered by our free two-year warranty.
Ossila Cyclic Voltammetry PC Software
Intuitive PC software for performing cyclic voltammetry with the Ossila Potentiostat. Simply set your experimental parameters and press measure to create a cyclic voltammogram in real-time. When your scan is finished, the software lets you export the results as a CSV file so that you are never locked into one ecosystem. Your settings are saved alongside your data and can be stored in the software so that you can quickly and easily repeat your measurement or perform similar scans.
Available to download from our website at any time. Future updates are provided at no extra cost.
Ossila Test Cell Chip
The test cell chip simulates an electrochemical cell so that you can test your potentiostat under controlled conditions. The chip provides a different response (with three different maximum currents) depending on the direction of the scan. To perform a test, simply plug in your potentiostat, connect it to the cell, and take a measurement using the cyclic voltammetry software as normal. The resulting cyclic voltammogram can then be compared to the example in the product manual.
Electrochemical Cell and Electrodes (Optional)
Standard electrochemical cell
Our electrochemical cell glassware features a screw-fit PTFE lid with three electrode holes to hold the working, reference, and counter electrodes in place and two gas holes for degassing. To set up your three electrode system, simply place your solution (containing the chemical of interest, an electrolyte, and a solvent) in the cell and then place the electrodes in the holes in the lid. The gas intakes can be used to bubble an inert gas such as nitrogen or argon through the solution to remove any oxygen, which could otherwise cause unwanted redox processes.
Included with the Potentiostat if purchased with a cell. Available separately for £147.
Platinum disk working electrode
The working electrode is where the electrochemical reactions take place. We sell a range of different types of working electrodes, including gold disc electrodes, but platinium is the most commonly used material. Platinum is electrochemically inert so will not interfere with your measurements and is resistant to solvents, acids and oxidation.
Included with the Potentiostat if purchased with a cell. Available separately for £163.
Platinum wire counter electrode
99.99% purity platinum wire counter electrode in a polytetrafluoroethylene (PTFE) plastic body. Platinum is electrochemically inert and is resistant to oxidation, solvents, and acids, making it a popular choice of material for a counter electrode. Our platinum wire counter electrodes allow current to flow through your electrochemical cell without affecting your results.
Included with the Potentiostat if purchased with a cell. Available separately for £146.
Non-aqueous Ag/Ag+ reference electrode
Non-aqueous Ag/Ag+ reference electrodes are popular reference electrodes for cycling voltammetry. The electrode consists of a high quality silver wire, which is sealed with a ceramic frit junction for use with a 0.01 M silver nitrate of acetonitrile solution. The ceramic frit minimises any mixing of your reference solution and your studied solution while being porous enough to allow a complete circuit to be formed. Unlike in a two electrode system, using separate counter and reference electrodes allows you to control the potential between the working and reference probes while measuring the current between the working and counter probes.
Included with the Potentiostat if purchased with a cell. Available separately for £83.
Getting Started with the Ossila Potentiostat
The Ossila Potentiostat has been designed to make it quick and easy to perform cyclic voltammetry. Purchase the complete package to get everything you need to set up your three electrode system and enjoy a significant discount on the cell and electrodes.
Setting Up the Potentiostat for Cyclic Voltammetry
The Ossila Potentiostat is controlled by the (free to download and use) cyclic voltammetry PC software. To get started, simply set up the physical aspects of your experiment and launch the software.
The experimental set up for cyclic voltammetry consists of a potentiostat connected to a three electrode electrochemical cell containing the electrolyte solution. Once the electrodes have been placed in the cell, they can be connected to the sockets on the front of the Ossila Potentiostat using the supplied cable and crocodile clips. The red socket connects to the working electrode, the black socket connects to the counter electrode, and the blue socket connects to the reference electrode.
We also recommend switching on the potentiostat 30 minutes prior to use. This will allow it to warm up and reach a stable temperature, which will help to ensure a stable measurement.
Controlling and Using the Potentiostat
Once you have set up your three electrode electrochemical cell and connected it to the potentiostat, performing Cyclic Voltammetry takes only a few clicks. The potentiostat will be detected automatically on starting the PC software, and from here the current range, potentials, scan rate and number of cycles can all be specified. When you are ready to start the scan, click “Measure” and watch in real time as the test is performed and a cyclic voltammogram is generated.
The system will sweep the potential between the working electrode and reference electrode while measuring the current between the working electrode and counter electrode. This will be repeated for the specified number of cycles. If ‘Save After Measurement’ is turned on, the measurement data and settings will be saved as CSV file once the sweep has finished.
Support and Articles
|Potential range||±7.5 V|
|Potential compliance||±10 V|
|Applied potential accuracy||±10 mV offset|
|Applied potential resolution||333 µV|
|Maximum current||±200 mA|
|Current ranges||±20 μA to ±200 mA (5 ranges)|
|Current measurement accuracy||±20 nA offset (at 20 μA range)|
|Current measurement resolution||5 nA (at 20 μA range)|
|Overall Dimensions||Width: 125 mm Height: 55 mm Depth: 175 mm|
Standard Electrochemical Cell Glassware (Optional)
Screw-fit PTFE lid with 3-electrode holes and 2-gas holes.
Platinum Disk Working Electrode (Optional)
Highly polished platinum embedded in polytetrafluoroethylene (PTFE) plastic bodies.
All dimensions are in millimetres.
Platinum Wire Counter Electrode (Optional)
All dimensions are in millimetres.
Non-aqueous Ag/Ag+ Reference Electrode (Optional)
All dimensions are in millimetres.
Pricing and Options
The complete three electrode system comes with three electrodes and a high quality cell, included at a reduced price for purchasers of the Ossila Potentiostat. A lower price option is also available if you wish to buy the potentiostat without a cell. Both packages qualify for FREE worldwide shipping and our two-year equipment warranty.
|Price with cell||£1600|
|Price without cell (potentiostat only)||£1300|
The Ossila Potentiostat comes with control and measurement software for performing cyclic voltammetry. Software updates are also provided at no extra charge and are available to download from our website.
As with all of our software, data is saved to comma-separated value (.csv) files so that you can analyse it with your favourite tool. The settings you define are saved alongside your measurement data so that you always have a record of your experimental parameters. Profiles allow you to save commonly used settings configurations so that you can quickly repeat measurements without re-configuring the potentiostat, further speeding up your research.
Software Key Features
Our intuitive potentiostat software enables you to easily perform cyclic voltammetry. Simply set the current range, start potential, potentials at which the scan changes direction, scan rate, and number of cycles and click 'Measure'. Watch the measurement as it happens with live plotting of data.
Intuitively-designed user interface
Easy to use, start using the potentiostat to take electrochemical measurements within minutes
Live updating plot
Plot cyclic voltammograms in real time
Data saved to .csv file
Software agnostic data exports enable you to use your favourite analytical tools
Create settings profiles
Repeat cyclic voltammetry experiments without having to re-enter your settings
|Operating System||Windows 10 (32-bit or 64-bit)|
|CPU||Dual Core 2.5 GHz|
|Available Hard Drive Space||107 MB|
|Monitor Resolution||1280 x 960|
To install the cyclic voltammetry PC software, download the latest version from our website or insert the supplied USB memory stick into your computer and run the ‘Ossila-Cyclic-Voltammetry-Installer-vX-X-X-X’ file.
On Windows 10, the necessary drivers are installed automatically when you first connect the Potentiostat to your computer. If you are using an older version of Windows you can find both 32-bit and 64-bit drivers either on the software download page or in the ‘SMU-Driver’ folder on the memory stick.
Please refer to the Potentiostat product manual for more information.
Electrochemical/Photoelectrochemical Cells and Cell Kits
Working, Counter, and Reference Electrodes
To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.