Chinese Researchers Pioneer a Fast and Accurate Technique for Platinum-Group Catalyst Synthesis

On July 10, 2026, a research team from Tianjin University made headlines by unveiling a state-of-the-art technique in the journal Science. This new method introduces a millisecond-scale thermal pulse technology that facilitates the ultra-fast synthesis and precise regulation of platinum-group catalysts. The team, led by Professor Hu Wenbin, aims to address pressing energy challenges with this innovative approach.

The research paper titled "Transient assembly of precision-tuned platinum-skin intermetallic catalysts for fuel cells" details a pioneering strategy based on transient assembly. This technique not only improves the catalytic performance of hydrogen fuel cells but also enhances the development of eco-friendly energy technologies. Platinum-group catalysts are vital in modern energy, chemical, and environmental industries, and their efficient and accurate production offers significant benefits, including reduced use of precious metals.

Traditional synthesis methods often involve lengthy high-temperature annealing processes that can be time-consuming and energy-intensive. This presents a challenge for achieving precise control over catalyst production. To overcome these hurdles, the Tianjin University team developed a transient assembly strategy operating in a non-equilibrium state. By applying periodic thermal impulses, the method provides energy with millisecond-level precision, enabling nanocrystals to form core-shell structures through the continuous development of high-energy transient configurations. This process allows for atomic-level control over the thickness of the platinum shell, enhancing both geometric and electronic effects crucial for catalytic activity.

The study found that using this new approach could shorten conventional multi-stage processes—normally taking several hours—to just a few minutes. It can even produce a precisely controlled platinum shell of three atomic layers, significantly boosting catalytic activity and efficiency. Another remarkable achievement of this technology is its ability to reduce the energy consumption required for synthesizing catalysts per unit mass by a staggering 90%, all while avoiding hazardous or environmentally harmful reagents.

The catalysts synthesized with this novel technique achieved a nominal performance of 15.2 kilowatts per gram of platinum in hydrogen fuel cells and demonstrated exceptional long-term durability. This advancement promises to revolutionize catalyst synthesis, making it not only faster but also more environmentally friendly.

Professor Hu emphasized that this technology provides a fresh avenue for the precise and efficient synthesis of fine-structured noble metal catalysts. It is anticipated that this technique will find broader applications in various fields, including green hydrogen, high-end chemical production, environmental catalysis, fine chemicals, and pharmaceutical synthesis.

The landscape of catalyst production is evolving, and the implications of these research findings could lead to significant advancements in how society approaches energy and environmental challenges. For continued updates on this exciting development, follow Tianjin University on Facebook, X, Instagram, or LinkedIn.