Precious Metal-based catalysts

In the context of platinum (Pt) utilization, our research group focuses on addressing the pressing challenges related to the cost and availability of Pt, particularly in the field of fuel cells and metal-air batteries. Our primary objective is to find viable alternatives, with a particular emphasis on achieving both enhanced activity and improved stability.

We achieve enhanced activity through the use of Pt alloys. Our research involves exploring the incorporation of platinum into alloys, such as combinations with metals like nickel (Ni) and cobalt (Co) from the fourth period of the periodic table. This approach effectively decreases the d-band center of platinum, which has been demonstrated to be an effective method for improving catalytic activity, particularly towards the oxygen reduction reaction (ORR).

On the other hand, we aim to improve stability through the incorporation of metal oxides, including ceria, zirconia, titania, and others. These metal oxides play a crucial role in enhancing the stability and corrosion resistance of our catalysts under real-world operational conditions. 

To create these advanced materials, we employ various synthesis methods, ranging from traditional wet chemistry to solid-state synthesis. We also explore critical conditions in hydro and solvothermal microwave-assisted synthesis. This diverse range of techniques enables us to tailor catalyst properties to meet specific performance requirements. 

Furthermore, we employ a comprehensive suite of characterization techniques, including X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), BET surface area analysis, and Raman spectroscopy. These techniques provide valuable insights into the morphological and structural aspects of our materials.

Our materials undergo rigorous performance assessments, utilizing various experimental setups, from the conventional electrochemical cell to an innovative Gas Diffusion Cell (GDE) with different designs. This meticulous testing process allows us to evaluate the performance of our materials PEMFC applications. 

In summary, our research group is dedicated to pioneering Pt alloy strategies to enhance catalytic activity and incorporating metal oxides to improve stability. Our commitment to innovation, rigorous testing, and the pursuit of advanced materials contributes to the advancement of fuel cell technologies, promising cost-effective and accessible solutions for the future. We welcome inquiries and collaboration opportunities to further this important research endeavor.