ZeroAvia has been granted a patent for a method to produce catalysts with nanoparticles of platinum and its alloys for low-temperature fuel cells and electrolyzers. The process involves specific steps like preparation of a solution, mixing with carriers, dispersion, and purging gases to achieve high catalytic activity. GlobalData’s report on ZeroAvia gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on ZeroAvia, Fuel cell powered drones was a key innovation area identified from patents. ZeroAvia's grant share as of May 2024 was 7%. Grant share is based on the ratio of number of grants to total number of patents.
Method for producing catalysts with nanoparticles of platinum
A recently granted patent (Publication Number: US11998903B2) discloses a method for producing catalysts containing nanoparticles of platinum or its alloys with metals, specifically designed for use in low-temperature fuel cells and electrolyzers. The process involves preparing a solution of chloroplatinic acid or a mixture of chloroplatinic acid with at least one metal salt in water or an aqueous organic solvent. This solution is then mixed with dispersed carbon or non-carbon carriers, or their mixtures, with a specific surface area of more than 60 m2/g. The resulting mixture is dispersed to create a suspension, which is then alkalized to a pH between 6 and 11. Subsequently, a gas such as nitrogen oxides, carbon dioxide, sulfur oxide, ammonia, or their mixtures is purged through the suspension at a temperature ranging from 5 to 98°C. This process results in the production of catalysts with nanoparticles of platinum or its alloys with metals suitable for use in the cathode and anode of low-temperature fuel cells and electrolyzers.
Furthermore, the method involves adjusting the time interval between the preparation of the solution of chloroplatinic acid or its mixture with metal salt and the purging of the selected gas. This adjustment is crucial in ensuring the production of catalysts with the desired characteristics for optimal performance in low-temperature fuel cells and electrolyzers. The patent highlights the importance of using specific gases during the purging process, including nitrogen oxides (N2O, NO, and NO2), to achieve the desired catalyst composition. Overall, this patented method offers a systematic approach to producing catalysts with nanoparticles of platinum or its alloys with metals, tailored for efficient operation in low-temperature fuel cells and electrolyzers.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
