Spraying Platinum Carbon Materials
Spraying platinum carbon materials on water electrolysis and fuel cell membrane electrodes is one of the key technologies in the field of hydrogen energy technology. Platinum carbon materials play an important role in this. They are usually used in the catalyst layer of membrane electrode (MEA) as a catalyst to promote electrochemical reactions. The following will introduce the spraying of platinum carbon materials on water electrolysis and fuel cell membrane electrodes:
1. Application of Ultrasonic spraying technology: Spraying technology is a method of spraying catalyst slurry directly on the proton exchange membrane (PEM) through a spray device. This method can save materials to a certain extent, but there may be problems of poor uniformity and relatively low efficiency. Roll-to-roll slot die direct coating and transfer printing are another way to improve efficiency. They can control the thickness and shape of the catalyst layer coating, adjust the membrane drying time, and optimize the morphology of the catalyst slurry on the PEM.
2. The role of platinum carbon materials: Platinum carbon catalysts are widely used in membrane electrodes of hydrogen fuel cells due to their excellent chemical stability and high catalytic activity. Platinum as a catalyst can effectively promote the electrochemical reaction of hydrogen and oxygen, while the carbon carrier provides the necessary electrical and thermal conductivity.
3. Importance of membrane electrode: Membrane electrode (MEA) is one of the core components of hydrogen fuel cells, accounting for the bulk of the cost of hydrogen fuel cells, about 60%. It converts hydrogen and oxygen into electrical energy and heat energy in electrochemical reactions, so its design and manufacturing process have a crucial impact on the performance, life and cost of fuel cells.
4. Membrane electrode preparation process: The current mainstream membrane electrode preparation processes include the first-generation GDE hot pressing method, the second-generation CCM method and the third-generation ordered membrane electrode. Among them, the CCM method is currently the most commercialized, and the slurry consisting of catalyst, sulfonic acid resin and appropriate dispersant is directly coated on both sides of the PEM by direct coating, screen printing, spraying and other methods.
5. Research and development trends: Domestic and foreign research teams are constantly exploring ways to improve catalyst utilization and reduce costs. For example, the research review published by Li Hui’s team at the Southern University of Science and Technology discussed the influence of low-platinum membrane electrode catalyst layer and its interlayer interface structure on the gas-liquid mass transfer inside the electrode.
In summary, electrolysis of water and spraying platinum-carbon materials on fuel cell membrane electrodes involve advanced manufacturing technologies for membrane electrodes, the core components of hydrogen fuel cells. Platinum-carbon materials play a key role as catalysts in this process, and the application of their spraying technology directly affects the performance and cost of membrane electrodes. With the continuous advancement and innovation of technology, it is expected to achieve lower costs and higher efficiency in the future, further promoting the commercialization of hydrogen energy technology and the popularization of green energy.
About Cheersonic
Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.
Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.
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