Electrochemical Consumables

Platinum disc electrode

Name: Platinum disc electrode
Brand: Kintek Solution
SKU: ELEP
Rating: 4.79 (17 reviews)

Item Number : ELEP

Price varies based on specs and customizations

$49.90 / set

Specifications: 0.5 ~ 6mm, can be customized
Applicable temperature range: 0 ~ 60℃
Rod Material: PTFE
Guide material: high Purity Platinum> 99.99%

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Introduction

Disk electrodes are essential components for electrochemical experiments, commonly used in three-electrode setups. They are circular with a small ring around the edge and can be micromachined to a very small size. Disk electrodes are often used for cost-efficient disposable electrodes and are key applications for electrochemical techniques like cyclic voltammetry and impedance spectroscopy.

Technical specifications

1.Pure Platinum 2.PTFE rod 3.Gold plated binding posts

Specifications	0.5 ~ 6mm, can be customized
Applicable temperature range	0 ~ 60℃
Rod Material	PTFE
Guide material	high Purity Platinum> 99.99%

Detail & Parts

Platinum disc electrode detail 1

Applications

Platinum Disc Electrodes are widely used in various electrochemical techniques for substrate analysis. Here are some key application areas:

Electrochemical analysis: Disk electrodes are used in a variety of electrochemical analysis techniques, such as cyclic voltammetry, chronoamperometry, and impedance spectroscopy. These techniques can be used to study the electrochemical properties of materials, such as their redox behavior, conductivity, and capacitance.
Electrocatalytic measurements: Platinum Disc Electrodes are commonly used as the disk electrode in rotating ring-disk electrodes (RRDEs) for electrocatalytic measurements. Due to its low electrocatalytic activity compared to Pt and Au, glassy carbon (GC) is often used as the disk electrode onto which the electrocatalyst is deposited.
Direct dropping experiments: Very small Platinum Disc Electrodes can be used for direct dropping experiments, where a small drop of a solution of interest is put directly onto the electrode and the electrical impedance is measured.
Fuel cells: Platinum thin films are crucial in fuel cells, providing high electro-catalytic property with low resistance.
Solar cells: Platinum counter electrodes are used in solar cells made of dye-synthesized TiO2, improving the ionic diffusion rate and enabling high current draw.
Gas electrodes and polymers: Platinum is deposited on various substrates like gas electrodes and polymers through impregnation and reduction methods. The sputtering technique allows for precise distribution of metal and homogenous particles with controlled thickness.

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FAQ

What is rotating disk electrode used for?

Rotating disk electrode (RDE) is a hydrodynamic working electrode used in electrochemical applications such as corrosion studies, fuel cell research, catalyst development, and controlling mass transport of reactants to the electrode surface. It is used when defined mass transport to the sample electrode is desired. The disk's rotation induces a constant flux of analyte to the electrode, making it ideal for investigating different electrochemical phenomena such as multi-electron transfer, kinetics of slow electron transfer, adsorption/desorption steps, and electrochemical reaction mechanisms. In analytical chemistry, RDE is used in three-electrode systems for hydrodynamic voltammetry to investigate reaction mechanisms related to redox chemistry.

What is an electrode in electrochemistry?

An electrode is a solid electrical conductor that serves as the point where current enters and leaves the electrolyte in an electrochemical cell. When the current leaves the electrode, it is called the cathode, and when it enters, it is called the anode. Electrodes are essential components of electrochemical cells, transporting produced electrons from one half-cell to another, which produces an electrical charge. The charge is based on a standard electrode system (SHE) with a reference potential of 0 volts and serves as a medium for any cell potential calculation.

What is the function of auxiliary electrode?

The auxiliary electrode, also known as the counter electrode, is an electrode used in a three-electrode electrochemical cell for voltammetric analysis or other reactions where an electric current is expected to flow. Its primary function is to provide a pathway for current flow in the electrochemical cell without passing a significant current through the reference electrode. It provides a means of applying input potential to the working electrode. The auxiliary electrode may be isolated from the working electrode to prevent any byproducts generated from contaminating the main test solution. It is often fabricated from electrochemically inert materials such as gold, platinum, or carbon.

What is reference electrode with an example?

A reference electrode is an electrode with a stable and known electrode potential, used in electrochemical measurements and devices. An example of a reference electrode is the Standard Hydrogen Electrode (SHE), which has a potential of 0.000 V and an activity of H+ of 1 Molar. Other examples of reference electrodes include the Normal Hydrogen Electrode (NHE), Saturated Calomel Electrode (SCE), Silver Chloride Electrode, Copper-Copper Sulfate Electrode, and the pH Electrode. Reference electrodes are used in building electrochemical cells and determining the potential of the other half-cell.

What is the rotating electrode method?

The rotating electrode method is a technique used in electrochemical applications such as fuel cell research, corrosion studies, catalyst development, and controlling mass transport of reactants to the electrode surface. It involves using a rotating disk electrode (RDE) that rotates during experiments, inducing a constant flux of analyte to the electrode. The RDE can quickly achieve conditions in which the steady-state current is controlled by the solution flow rather than diffusion. By running experiments at various rotation rates, different electrochemical phenomena can be investigated, including multi-electron transfer, adsorption/desorption steps, and electrochemical reaction mechanisms.

What are the 3 electrodes in electrochemistry?

The three electrodes commonly used in electrochemistry are the Working Electrode (WE), Reference Electrode (RE), and Counter Electrode (CE). The WE is where the electrochemical reaction occurs and the current is measured. The RE provides a stable reference potential for the measurement. The CE completes the circuit and balances the charge between the WE and RE. Proper preparation and use of each electrode is crucial for accurate electrochemical experiments.

What is the difference between auxiliary and reference electrode?

The main difference between auxiliary and reference electrode lies in their function in an electrochemical cell. The auxiliary electrode, also known as the counter electrode, is used to facilitate charge transfer to and from the analyte and pass all the current so that the current at the working electrode can be controlled. On the other hand, the reference electrode is used to reference when measuring and controlling the potential of the working electrode and does not pass any current. The reference electrode has a fixed potential, while the potential of the auxiliary electrode can change.

What is the role of reference electrode?

The role of the reference electrode is to complete the electrical circuit necessary for an electrochemical measurement by providing the second electrode of a complete electrode cell whose total potential is measured. The reference electrode achieves this by providing contact with the sample through its liquid junction. For a reference electrode to be useful, it must provide both a stable and reproducible potential to which the indicating electrode potential can be compared. Most difficulties experienced while performing measurements with electrodes can be traced to the reference electrode, and more specifically, to the reference electrode's liquid junction.

What is the rotating ring-disk electrode method?

The rotating ring-disk electrode (RRDE) is a double working electrode used in analytical chemistry for hydrodynamic voltammetry. It is designed for investigating reaction mechanisms related to redox chemistry and other chemical phenomena. The RRDE has a disk electrode at its center and a ring electrode around the disk. The system takes advantage of the laminar flow created during rotation, allowing for controlled contact of the solution with the disk and ring electrodes. By varying the rate of rotation, it is possible to determine the rate of the chemical reaction and investigate different electrochemical phenomena.

What are the different types of electrochemical electrodes?

There are several types of electrochemical electrodes, each designed for specific applications. The most common types include working electrodes, reference electrodes, and counter electrodes. Working electrodes are the primary electrodes where the electrochemical reaction of interest takes place. Reference electrodes provide a stable reference potential against which the working electrode potential can be measured. Counter electrodes complete the circuit by providing a site for the flow of electrons to balance out the current passing through the working electrode.

What materials are commonly used for auxiliary electrodes?

The choice of materials for auxiliary electrodes depends on the specific electrochemical system and the desired reaction. Common materials for auxiliary electrodes include platinum, graphite, stainless steel, and certain metal alloys. These materials are typically inert and do not participate in the desired electrochemical reaction, ensuring that the auxiliary electrode's role remains solely as a conductor for current flow.

What is reference electrode used for?

A reference electrode is used to provide a stable and defined potential for electrochemical measurements. It consists of an internal element, typically silver-silver chloride, surrounded by an electrolyte-containing filling solution. The purpose of the reference electrode is to complete the electrical circuit necessary for an electrochemical measurement by providing the second electrode of a complete electrode cell whose total potential is measured. Most electrodes combine a stable reference and a working cell in one probe, but separate reference electrodes are available for certain applications. The choice of reference electrode depends on factors such as sample compatibility, stability, and temperature considerations.

What are the advantages of rotating disc electrode?

The advantages of rotating disk electrodes (RDE) include the ability to control mass transport of reactants to the electrode surface, achieve laminar flow of solution towards and across the electrode, and investigate different electrochemical phenomena such as multi-electron transfer and electrochemical reaction mechanisms. RDEs are commonly used in electrochemical applications such as corrosion studies, fuel cell research, and catalyst development. The base rotation rate of RDEs can be manually adjusted, and the electrode rotation rate can be precisely controlled with an electric motor. RDEs are a powerful tool for investigating reaction mechanisms related to redox chemistry and other chemical phenomena.

What materials are commonly used for electrochemical electrodes?

Various materials can be used for electrochemical electrodes depending on the specific application and requirements. Common materials include noble metals such as platinum, gold, and silver, which provide excellent conductivity and chemical stability. Carbon-based materials like graphite or glassy carbon are also commonly used due to their high surface area and good electrical properties. Additionally, metal oxides, conductive polymers, and composite materials are employed for specific applications that necessitate unique properties such as catalytic activity or selectivity.

How do auxiliary electrodes affect the performance of an electrochemical cell?

Auxiliary electrodes play a crucial role in the performance of electrochemical cells. They help maintain a balanced electrical potential, minimizing side reactions or unwanted reactions at the working electrode. The choice of appropriate materials for the auxiliary electrode is essential to prevent contamination or interference with the desired electrochemical process. Additionally, the design and positioning of the auxiliary electrode within the cell can impact overall efficiency and uniformity of current distribution. Proper selection and placement of auxiliary electrodes can enhance the performance, accuracy, and reproducibility of electrochemical measurements or processes.

What is a reference electrode vs counter electrode?

A reference electrode is used as a comparison point for the potential of the working electrode in an electrochemical experiment. It must maintain a stable potential throughout the experiment. Common examples include Ag/AgCl, Ag/Ag+ and the saturated calomel electrode (SCE). On the other hand, a counter electrode transfers electrons between itself and some species in solution, in order to prevent inhibition of electron transfer at the working electrode. It must transfer electrons quickly and is commonly made of platinum metal, such as a platinum wire or a high surface area platinum gauze electrode.

What is the difference between standard and reference electrode?

Standard electrode potential is the potential difference between a half-cell and a standard reference electrode. A reference electrode, on the other hand, is an electrode that has a stable and well-known electrode potential. The key difference is that the standard electrode potential is a relative value, while the reference electrode potential is an absolute value. The standard electrode potential can be used to predict the direction of electron flow in a reaction, whereas the reference electrode potential is used to measure the potential of other half-cells and determine the absolute potential of a given electrode.

What factors should be considered when selecting an electrochemical electrode?

When selecting an electrochemical electrode, several factors should be considered. The choice of electrode material is crucial, as it determines the electrode's conductivity, stability, and catalytic activity. The electrode size and geometry should match the specific experimental setup and requirements. Consideration should also be given to the compatibility of the electrode material with the electrolyte and the potential range of the electrochemical system. Additionally, cost, availability, and ease of fabrication should be taken into account when selecting an electrode for practical applications.

Why are auxiliary electrodes necessary in electrochemical systems?

Auxiliary electrodes are necessary in electrochemical systems to maintain electrical neutrality and ensure the flow of current. In many electrochemical reactions, the desired reaction occurs at the working electrode, while the auxiliary electrode acts as a counterbalance. It helps to complete the circuit by providing a path for the flow of electrons or ions, thereby allowing the continuous movement of charge and ensuring the overall electrochemical reaction proceeds smoothly and efficiently.

How can electrochemical electrodes be used in various applications?

Electrochemical electrodes find applications in a wide range of fields, including energy storage and conversion, corrosion analysis, sensors and biosensors, electroplating, and water treatment. They are used in batteries and fuel cells to facilitate the electrochemical reactions that store and convert energy. Electrochemical sensors and biosensors utilize electrodes to detect and measure analytes in various samples. Electroplating and electrorefining processes rely on electrodes to deposit or extract metal ions. Additionally, electrochemical electrodes are employed in electrochemical machining, electroanalysis, and many other research and industrial applications that involve studying or manipulating electrochemical phenomena.

Are there any limitations or considerations when using auxiliary electrodes?

When using auxiliary electrodes, several limitations and considerations should be taken into account. The choice of materials for the auxiliary electrode is critical to prevent any unwanted reactions or contamination that could affect the desired electrochemical process. Compatibility between the auxiliary electrode and the electrolyte or reactants should be considered to ensure stability and long-term performance. Additionally, the design and positioning of the auxiliary electrode should be carefully optimized to minimize current distribution issues or potential interference with the working electrode. It is also essential to regularly monitor and maintain the auxiliary electrode to prevent degradation or contamination that could impact its performance. Finally, the size and shape of the auxiliary electrode should be considered to ensure compatibility with the specific electrochemical cell or system being used.

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4.8

out of

5

Platinum disc electrode is a great product, definitely worth the price. It's super durable and easy to use, definitely recommend!

Ryleigh Lam

4.9

out of

5

The technology behind this electrode is amazing. I was able to get accurate and consistent results with ease.

Ines Oliver

4.7

out of

5

The quality of the electrode is top-notch. The platinum coating is thick and evenly distributed, resulting in consistent and reliable measurements.

Haris Burhan

4.8

out of

5

The delivery was super fast, I received my order within 2 days. The packaging was also very secure, ensuring the product's safety during transit.

Ines Oliver

4.6

out of

5

This electrode is a game-changer. It has helped me obtain more precise data in my electrochemical experiments.

Kevin Skaggs

4.9

out of

5

The electrode's performance exceeded my expectations. It's a great value for money, and I highly recommend it to anyone in the field of electrochemistry.

Aiden Beatty

4.8

out of

5

The customer service is excellent. I had a minor issue with my order, and they resolved it promptly and efficiently.

Aaliyah Salas

4.7

out of

5

The durability of this electrode is impressive. I've been using it for months, and it still performs as well as when I first got it.

Ethan Stevens

4.9

out of

5

The technological advancement of this electrode is remarkable. It incorporates cutting-edge features that make it stand out in the market.

Jasmine Rodriguez

4.8

out of

5

The electrode's design is well-thought-out, making it user-friendly and efficient for various electrochemical applications.

Mason Ortiz

4.7

out of

5

The electrode's compatibility with different electrochemical instruments is a huge plus, allowing for seamless integration into existing setups.

Liam Romero

4.9

out of

5

The electrode's versatility makes it suitable for a wide range of experiments, catering to diverse research needs.

Isabella Medina

4.8

out of

5

The electrode's accuracy and precision are commendable, providing reliable and reproducible data for analysis.

Cameron Bowers

4.7

out of

5

The electrode's durability is exceptional, withstanding repeated use and harsh experimental conditions without compromising performance.

Audrey Roberts

4.9

out of

5

The electrode's affordability makes it accessible to researchers with limited budgets, promoting wider adoption and scientific advancements.

Elijah Martinez

4.8

out of

5

The electrode's compact design and portability make it convenient for use in various laboratory settings, facilitating research on the go.

Emily Jacobs

4.7

out of

5

The electrode's ease of maintenance and cleaning minimizes downtime, maximizing productivity and efficiency in the laboratory.

Benjamin Hall

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Hot Tags

rotating disc electrode electrochemical electrode auxiliary electrode reference electrode

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Platinum disc electrode

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Introduction

Technical specifications

Detail & Parts

Applications

Designed for You

FAQ

What is rotating disk electrode used for?

What is an electrode in electrochemistry?

What is the function of auxiliary electrode?

What is reference electrode with an example?

What is the rotating electrode method?

What are the 3 electrodes in electrochemistry?

What is the difference between auxiliary and reference electrode?

What is the role of reference electrode?

What is the rotating ring-disk electrode method?

What are the different types of electrochemical electrodes?

What materials are commonly used for auxiliary electrodes?

What is reference electrode used for?

What are the advantages of rotating disc electrode?

What materials are commonly used for electrochemical electrodes?

How do auxiliary electrodes affect the performance of an electrochemical cell?

What is a reference electrode vs counter electrode?

What is the difference between standard and reference electrode?

What factors should be considered when selecting an electrochemical electrode?

Why are auxiliary electrodes necessary in electrochemical systems?

How can electrochemical electrodes be used in various applications?

Are there any limitations or considerations when using auxiliary electrodes?

PDF - Platinum disc electrode

Catalog of Electrochemical Consumables

Catalog of Rotating Disc Electrode

Catalog of Electrochemical Electrode

Catalog of Auxiliary Electrode

Catalog of Reference Electrode

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Comprehensive Guide to Rotating Disk Electrode (RDE) in Electrochemical Studies

Electrode Materials for Rotating Ring-Disk Electrodes

Electrochemical Electrodes in Chemical Analysis

Understanding Electrodeposition with Electrochemical Electrodes

Electrolytes and Electrochemical Electrodes

Innovations in Electrochemical Electrodes Technology

Comprehensive Guide to Reference Electrodes: Types, Applications, and Selection Criteria

A Comprehensive Guide to Reference Electrodes

The Future of Electrochemical Electrodes

A Beginner's Guide to Understanding Reference Electrodes in Electrochemistry

How to Choose the Right Electrochemical Electrode

Advantages of the Rotating Electrode Method

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