SHERIDAN, WYOMING -- July 12, 2026 -- A Tianjin University research team has published research in *Science* describing a millisecond-scale thermal pulse method for producing platinum-group catalysts with tighter structural control. The study, released July 10, 2026, centers on a transient assembly strategy for platinum-skin intermetallic catalysts used in hydrogen fuel cells. According to the university, the approach shortens catalyst production from hours to minutes, reduces synthesis energy use by 90 percent and produces a three-atomic-layer platinum shell. For fuel-cell suppliers and catalyst developers, the work points to a more efficient route for lowering platinum loading while maintaining performance. ##### **Millisecond pulses replace prolonged annealing** The Tianjin University team positioned transient assembly as an alternative to conventional high-temperature annealing, which the release described as time-consuming, energy-intensive and difficult to control with precision. Periodic thermal pulses deliver energy at millisecond-scale intervals and drive nanocrystals through high-energy transient configurations toward core-shell structures. By using short, repeated bursts rather than extended heat treatment, the process compresses a multi-step synthesis route into a matter of minutes. That control is central to producing catalysts with defined platinum-skin architectures. ##### **Precise shell control becomes central to the process** The study focused on platinum-group metal core-shell catalysts that pair precious-metal surfaces with less expensive base materials. The new method enables precise control over the thickness of the platinum shell, including a three-atomic-layer structure. That level of control can help tune geometric and electronic effects that influence catalytic activity. The paper, titled “Transient assembly of precision-tuned platinum-skin intermetallic catalysts for fuel cells,” frames the approach as a route to more exact catalyst manufacturing. ##### **Fuel-cell testing delivered 15.2 kW per gram of platinum** Catalysts made through the transient assembly method achieved a rated power of 15.2 kilowatts per gram of platinum in hydrogen fuel cells, according to the study. The reported performance addresses a key design challenge for fuel-cell systems: reducing precious-metal content without sacrificing output. Durability also remained strong in the reported testing, giving the work operational relevance beyond laboratory synthesis. For manufacturers, platinum efficiency is a direct cost and supply-chain issue. ##### **Lower energy demand targets catalyst cost and compliance pressure** Energy use per unit mass of synthesized catalyst fell by 90 percent compared with conventional synthesis, the university said. The process also avoids hazardous or highly polluting reagents, a detail that could matter for industrial producers managing environmental compliance and workplace safety. Lower energy demand may help reduce processing costs if the method scales beyond the research setting. The release did not provide pilot-scale cost data, so commercial economics remain outside the reported findings. ##### **Platinum-group catalysts remain central across energy and chemicals** Platinum-group catalysts are used across modern energy, chemical and environmental applications because of their high activity and stability. Core-shell structures can improve utilization of platinum while preserving the surface properties needed for demanding reactions. The *Science* paper connects the method to hydrogen fuel cells, where catalyst performance directly affects stack efficiency and system cost. Broader uses listed by the university include green hydrogen, high-end chemical manufacturing, environmental catalysis, fine chemicals and pharmaceutical synthesis. ##### **Commercial impact depends on scale-up and validation** The published findings give catalyst developers a new synthesis concept, but scale-up details were not included in the release. For B2B buyers, the next diligence points would include production throughput, repeatability, equipment requirements and compatibility with existing catalyst manufacturing lines. Buyers may also seek independent validation of durability under commercial fuel-cell operating conditions. Hu Wenbin, a Tianjin University professor and corresponding author, described the work as a new route for efficient synthesis of noble-metal catalysts with fine structures. For more information about Tianjin University, visit https://www.tju.edu.cn/.