Improvement of Fuel Cell Performance Using Platinized Titanium Anodes

Introduction

Platinized titanium anodes are employed in fuel cell applications owing to their high electrocatalytic activity and inherent corrosion resistance. They play a critical role in fuel cell systems by facilitating efficient and sustainable energy conversion via electrochemical reactions. This article details the methods by which platinized titanium anodes are implemented in fuel cell applications.

Advantages of Platinized Titanium Anodes

Platinized titanium anodes are specifically engineered for use in fuel cells, particularly in applications that require efficient electrochemical processes. These anodes are produced by depositing a platinum layer onto a titanium substrate, thereby creating a composite material that utilises the attributes of both platinum and titanium. Consequently, this electrode configuration offers several distinct advantages in fuel cell technology.

lIncreased electrochemical activity: Platinum exhibits high electrocatalytic activity. Coating a titanium substrate with platinum enhances the electrochemical reactions that occur during fuel cell operation.

lCorrosion resistance: Titanium is selected for its inherent corrosion resistance. This property ensures the electrode remains stable even in the chemically active environment of a fuel cell over extended periods.

lCost efficiency and platinum utilisation: Platinum is an expensive metal. By utilising a titanium substrate with a thin platinum coating, overall production costs are reduced while maintaining the required catalytic function.

lLongevity and durability: The combination of titanium’s durability with the catalytic properties of platinum results in an anode with an extended operational life. This durability contributes to the practical viability and cost efficiency of fuel cell systems.

Fuel Cell Applications of Platinized Titanium Anodes

Due to these properties, platinized titanium anodes are applied in various fuel cell systems, including proton exchange membrane fuel cells (PEMFCs) and solid oxide fuel cells (SOFCs). They contribute directly to the key electrochemical reactions involved in energy conversion.

l PEMFCs: In PEMFCs, the anode catalyses hydrogen oxidation by dissociating hydrogen molecules into protons and electrons. The protons traverse the proton exchange membrane, and the electrons pass through an external circuit to generate electricity. The platinum surface thereby increases the rate of these reactions.

lSOFCs: In SOFCs, which operate at higher temperatures, the platinized anode serves as a catalyst for the electrochemical oxidation of hydrogen or hydrocarbon fuels. It facilitates the splitting of hydrogen molecules and the release of electrons that travel through an external circuit to produce current. The elevated operating temperatures improve the reaction kinetics, thereby ensuring efficient fuel oxidation.

Conclusion

In conclusion, platinized titanium anodes perform an essential function in fuel cell applications by providing efficient electrocatalysis, durability, corrosion resistance and versatility in fuel handling. Their contribution to enhancing key electrochemical reactions in fuel cells helps improve clean energy conversion and sustainable power generation. Stanford Advanced Materials (SAM) supplies an array of electrodes, including platinized titanium anodes and platinized niobium mesh anodes. For further information, please visit our homepage.