Different Types of MMO Coated Titanium Anodes: Ruthenium, Iridium, and Platinum

In the field of electrochemistry, from electrolysis processes to fuel cells, finding efficient and durable anode materials is key for various applications. This article delves into the MMO (Mixed Metal Oxide) coated titanium anodes, exploring three different variants: iridium-based MMO coated titanium anodes, ruthenium-based MMO coated titanium anodes, and platinum-based MMO coated titanium anodes.

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Ruthenium-based MMO Coated Titanium Anode

Ruthenium-based Mixed Metal Oxide (MMO) titanium anodes are widely used to enhance the corrosion resistance and stability of anodes. According to the classification of gases evolved in electrochemical reactions, insoluble anodes can be divided into three types: chlorine evolution type, oxygen evolution type, and combined chlorine and oxygen evolution type. The ruthenium oxide coated titanium anodes belong to the chlorine evolution type and exhibit outstanding performance in related processes.

Specifications

• Substrate: TA1/TA2
• Coating:Pure ruthenium, ruthenium-iridium, ternary ruthenium-iridium, multicomponent ruthenium-iridium mixed oxide formulations
• Operating Environment: Generally used in hydrochloric acid, electrolyzed seawater, and electrolyzed brine environments
• Dimensions: Customized according to requirements
• Shape: Plate, mesh, tubular
• Current Density: &#; A/m2

Features

• The coating can be customized with different formulations for various operating environments. The improved nanoscale refined grains enhance the bonding between the coating and the substrate, leading to better electrocatalytic performance.
• The chlorine evolution overpotential is reduced, which extends the electrode's service life and provides good corrosion resistance.
• The size and shape of the anode can be customized based on actual working conditions to meet specific needs.
• Anode recoating services are available based on the wear of the anode coating. The substrate can be reused multiple times without excessive wear, saving costs for the user.

Application Fields

• Non-ferrous metal electrolytic production
• Chlor-alkali electrolysis
• Seawater electrolysis
• Manufacture of metal foils
• Electrochemical surface treatment of metal foils
• Electrolytic extraction and recovery of non-ferrous metals
• Organic electrolysis
• Cathodic protection
• Electrodialysis
• Production of acidic and alkaline ionized water
• Industrial wastewater treatment and other fields.

Iridium-based MMO Coated Titanium Anode

Iridium-based Mixed Metal Oxide (MMO) coated titanium anodes are a type of insoluble anode, which are coated with an iridium oxide layer on a titanium substrate using a special process. This coating endows the anode with excellent electrocatalytic activity and conductivity. In electrochemical reactions, based on the classification by gas evolution, iridium-based MMO coated titanium anodes are categorized as oxygen-evolving anodes, suitable for environments where oxygen evolution is desired.

Specifications

• Substrate: TA1/TA2
• Coating: Iridium oxide, iridium-tantalum, platinum-iridium, ternary iridium-tantalum, multicomponent iridium-tantalum mixed oxide formulations
• Operating Environment: Typically in sulfuric acid environments or other oxygen-evolving anode applications
• Dimensions: Customized according to requirements
• Shape: Plate, mesh, tubular, or other custom shapes
• Current Density: &#; A/m2

Features

• The coating formula can be tailored to different operating environments. With improved nanoscale refined grains, the coating bonds better with the substrate and provides stronger electrocatalytic action.
• The oxygen evolution overpotential is high, which reduces the amount of oxygen evolved, extends the electrode's service life, and provides good corrosion resistance.
• The size and shape of the anode can be processed and customized according to the actual working conditions, meeting different demands.
• Anode recoating services are available based on the wear of the anode coating. The substrate can be reused without excessive wear, saving costs for the user.

Application Fields

• Non-ferrous metal electrolytic production
• Recovery of electrolytic copper from etching solutions
• Electrochemical surface treatment of metal foils
• Auxiliary anodes for electroplating
• Organic electrosynthesis
• Cathodic protection
• Electrodialysis
• Production of acidic and alkaline ionized water
• Industrial wastewater treatment and other fields.

Platinum-based MMO Coated Titanium Anode

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Platinum-based MMO coated titanium anodes use titanium as the substrate and are coated with a layer of platinum group precious metals, making them suitable for both oxygen and chlorine evolution environments. Platinum is renowned for its excellent electrocatalytic activity and corrosion resistance, which makes it the anode material of choice in many fields. In practical applications, platinum-coated titanium anodes not only demonstrate outstanding electrocatalytic performance but also offer relatively low cost, leading to their widespread use across various industries.

Specifications

• Substrate: TA1/TA2, Nb1/Nb2
• Coating: Pure platinum, platinum-iridium
• Processing Techniques: Electroplating, brush plating
• Coating Thickness: 0.3 - 10 μm
• Shape: Commonly in plate, mesh, tubular, wire, or custom shapes; dimensions can be customized according to practical needs

Features

• Compared to pure platinum anodes, titanium-based platinum-coated anodes have relatively lower costs, making them a common choice where economics are considered.
• The platinum coating endows the anode with excellent electrocatalytic activity, facilitating the efficient progression of related electrochemical reactions.
• Titanium-based platinum-coated anodes, owing to their material properties, are suitable for a variety of chemical reactions and process scenarios.

Application Fields

Electrolytic chlorine plants, breweries, paper mills, and the manufacturing of chemicals such as reagents, perchlorates, and chlorates.

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Mixed Metal Oxide (MMO) anodes have gained significant traction in various industrial applications due to their unique properties and performance advantages. Like any technology, they come with their set of benefits and limitations. This article aims to shed light on the pros and cons of MMO anodes and provide guidance on selecting the right one for your project.

Pros of MMO Anodes

1. Durability & Longevity: MMO anodes are designed for the long haul, reducing frequent replacements.
2. High Current Capacity: Efficiently handle high current outputs, suitable for diverse applications.
3. Corrosion Resistance: Their unique composition offers excellent resistance, especially in challenging environments.
4. Low Overpotential: This leads to energy savings in electrolytic processes.
5. Flexibility in Design: Available in various shapes and sizes, catering to diverse needs.
6. Environmentally Friendly: They operate without releasing harmful pollutants or heavy metals.

Cons of MMO Anodes

1. Initial Cost: Higher upfront cost than some alternatives, but often justified over their lifecycle.
2. Requires Expert Installation: Proper installation is vital for optimal performance.
3. Sensitivity to Current Density: They can be sensitive to current density fluctuations.
4. Potential for Passivation: There&#;s a risk of the anode surface becoming passive in some conditions.

Selecting the Right MMO Anode for Your Project

Choosing the right MMO anode is pivotal for optimal results:

Table of Contents

1. Determine the Application: Identify if it&#;s for cathodic protection, electrochlorination, or another specific use.
2. Assess the Environment: Consider factors like pH, temperature, and potential contaminants.
3. Evaluate Current Density: Align with your project&#;s specific current density needs.
4. Consider Physical Dimensions: Depending on the area and design, select the appropriate shape and size.
5. Check for Certifications: Ensure the anode meets relevant industry standards.
6. Set a Budget: Consider the total lifecycle cost, not just the initial purchase price.
7. Consult with Experts: When in doubt, seek advice from professionals in the field.
8. Review Past Projects: Case studies can offer invaluable insights into potential performance.

Introducing Hele Titanium

When discussing MMO anodes, it&#;s essential to mention HELE Titanium. As a professional supplier in the MMO anode domain, HELE Titanium stands out with its commitment to quality, extensive product range, and dedicated customer service. They have carved a niche for themselves in the industry, ensuring that clients receive top-tier products tailored to their unique requirements.

Conclusion

MMO anodes offer a plethora of benefits, making them a preferred choice for many applications. However, it&#;s essential to be aware of their limitations and ensure that the selected anode aligns perfectly with your project&#;s requirements. Partnering with trusted suppliers like HELE Titanium can further enhance the success of your endeavors, striking the right balance between cost, quality, and performance.

The company is the world’s best mmo titanium anode supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.