Ultrasonic Coating of Cu Zn Sn Bimetallic Catalyst
Ultrasonic Coating of Cu Zn Sn Bimetallic Catalyst – Cheersonic
Driven by energy transition and carbon neutrality goals, efficient catalysts have become a core demand in fields such as CO ₂ conversion and hydrogen production through electrolysis of water. The Cu Zn Sn bimetallic catalyst exhibits excellent potential through the synergistic effect of its components, and the introduction of ultrasonic coating technology has achieved a breakthrough in its performance, providing a new solution for the field of heterogeneous catalysis.
Ultrasonic coating technology has established a unique advantage in catalyst preparation through the cavitation effect induced by high-frequency sound waves. This process first forms a uniform slurry of Cu, Zn, Sn precursors with solvents and adhesives, and then uses ultrasonic vibration to atomize them into nano-sized droplets of 50-200nm, which are accurately deposited on the surface of electrodes or carriers. The local shock waves and shear forces generated by cavitation not only solve the common problem of metal particle agglomeration in traditional coatings, but also promote the atomic level dispersion of the three metal components, forming a catalytic coating with uniform thickness (uniformity ± 5%). Compared with the immersion method, its material utilization rate has increased from 60% to over 95%, significantly reducing the consumption of precious metals.
The synergistic effect of Cu Zn Sn three metals is the core mechanism for enhancing catalytic activity. Cu, as the basic active component, provides the ability to generate multi carbon products for reactions such as CO ₂ reduction; Zn enhances CO ₂ activation efficiency by enhancing the adsorption of COOH intermediates; Sn regulates the electronic structure, optimizes the binding energy of * OCOH intermediates, and enhances the selectivity of target products such as formic acid. The tight interface contact formed by ultrasonic coating increases the electron transfer efficiency between the three metals by 40%. When the Cu Zn Sn atomic ratio is 3:1:0.1, the synergistic effect is most significant, and the Faraday efficiency of CO ₂ electroreduction to CO can reach over 70%.
The structural characterization and performance testing confirmed the excellent characteristics of the catalyst. XRD analysis shows that ultrasonic treatment promotes the integration of Sn atoms into the Cu Zn lattice, forming a stable alloy phase; The SEM image shows that the coating exhibits a porous structure, with a surface area that is 5 times higher than that of traditional processes. In electrochemical testing, the current density of the catalyst reached 120mA · cm ⁻ ² at a potential of -0.8V, and the overpotential was reduced by 15% compared to the single metal Cu catalyst. At a high current density of 300mA · cm ⁻ ², it can operate continuously and stably for 120 hours, demonstrating super durability.
This catalyst has practical value in multiple fields: in CO ₂ electroreduction, it can selectively generate chemicals such as CO and formic acid; When used for electrolysis of water to produce hydrogen, the efficiency of oxygen evolution reaction is increased by 20%; In the field of photocatalysis, its Cu Sn Zn active unit can also promote the conversion of CO ₂ to high-value products such as propionic acid. Subsequent research can further optimize metal dispersion and expand its applications in fields such as fuel cells and organic synthesis by adjusting parameters such as ultrasound power and calcination temperature.
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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