Ultrasonic Spray of Catalyst
Ultrasonic Spray of Catalyst – Catalyst Deposition Machine – Cheersonic
The following passage outlines the technique and benefits of applying a carbon-supported platinum ink onto catalyst-coated membranes during the production of platinum-based fuel cells, achieving performance levels that double conventional industry benchmarks.
This approach utilizes a proprietary acoustic atomization process to deposit the ink. The resulting conductive coatings are systematically compared with those produced via hydraulic deposition and paste printing techniques. The comparison involves a detailed assessment of morphological features, coating packing density, and the spatial arrangement of platinum particles both across the coating surface and through its thickness.
Findings reveal that the acoustic atomization method leads to a marked improvement in the homogeneity of platinum particle distribution. In electrochemical measurements, the catalytically active platinum surface area obtained through this technique reached as much as 71% relative to the total surface area of all platinum particles present. This represents a substantial gain in catalyst utilization efficiency, as a higher proportion of platinum atoms are accessible for electrochemical reactions. Enhanced uniformity also minimizes the formation of thick agglomerates, which can block active sites and hinder reactant transport.
Moreover, the controlled deposition process allows for thinner catalytic layers without compromising conductivity or reactivity, reducing precious metal loading and overall material costs. The superior distribution further promotes consistent current density across the membrane electrode assembly, contributing to longer operational stability and reduced degradation under cyclic loading conditions.
These combined factors—higher active surface area, lower platinum usage, and improved durability—explain why the method outperforms traditional coating approaches by a factor of two in real-world fuel cell tests. Such advances hold promise for scaling up production of high-efficiency energy conversion devices while addressing cost and resource constraints associated with noble metal catalysts.
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.
