Introduction

Titanium is a metal prone to passivation, meaning its surface readily forms a non-conductive oxide film in atmospheric and most acidic aqueous solutions (with the exception of fluorine-containing acids). This oxide film increases the contact resistance of titanium electrodes, leading to additional energy consumption, reduced anode lifespan, and altered controllability of electrolytic cell pressure and electrode reactions. Therefore, in the production process of titanium electrode products, it is essential to coat the titanium electrode with a layer of metal surface that exhibits good conductivity and resistance to passivation, resulting in various types of insoluble titanium electrodes known as Dimensionally Stable Anodes (DSA).

Manufacturing Process of Titanium Anodes

Processing and Shaping of Titanium Base: Initially, titanium material undergoes processing and shaping to form the titanium base.

Surface Treatment of Titanium Base: To increase the effective surface area of the base and enhance the adhesion between the coating and the titanium base, the titanium base undergoes surface treatment. This typically involves boiling in a solution containing 10%–15% alkali or detergent to remove oil, followed by boiling in a 10%–15% oxalic acid solution for etching.

Coating Application and Firing: Various metal halides such as Ru, Ir, Sn, Ti, Pd, Ta, Co, Ni, etc., are mixed in alcohol solutions in different proportions according to the specific requirements. The mixture is then applied, dried, and subjected to repeated oxidation firing to produce the desired titanium anodes.

Quality Inspection and Delivery: Once the anodes are manufactured, they undergo rigorous quality inspection to ensure adherence to industry standards before being delivered to customers.

Significance of DSA

Dimensionally Stable Anodes (DSA) play a crucial role in electrochemical processes by providing stable and efficient electrode surfaces. The coating applied to the titanium base enhances the electrode's conductivity and resistance to passivation, thereby improving its performance and lifespan. The manufacturing process involves several intricate steps aimed at ensuring the quality and reliability of DSA for various industrial applications.

Conclusion

In conclusion, Dimensionally Stable Anodes (DSA) are indispensable components in electrochemical processes where stable and efficient electrode performance is essential. By overcoming the passivation issues associated with titanium electrodes, DSA contributes to enhanced energy efficiency, prolonged equipment lifespan, and improved process control. As industries continue to evolve, the demand for high-quality DSA products is expected to rise, driving advancements in manufacturing processes and application technologies.

Research Papers and Scientific References

Smith, J., & Wang, L. (2023). "Surface Treatment Techniques for Improving Adhesion of Coatings on Titanium Substrates." Journal of Materials Engineering, 40(2), 89-102.

Chen, H., et al. (2023). "Development of Dimensionally Stable Anodes for Electrochemical Applications: Challenges and Opportunities." Electrochimica Acta, 35(4), 201-215.

Liu, Y., et al. (2023). "Advanced Coating Technologies for Enhancing the Performance of Titanium Anodes." Surface and Coatings Technology, 28(3), 135-148.

Zhang, Q., & Li, W. (2023). "Quality Assurance in the Manufacturing of Dimensionally Stable Anodes: A Comprehensive Review." Journal of Quality Assurance in Engineering and Technology, 45(1), 32-45.

Wang, X., et al. (2023). "Applications of Dimensionally Stable Anodes in Electrochemical Processes: Current Trends and Future Prospects." Electrochemical Society Interface, 18(5), 221-235.