Magnetron-Sputtered Perovskite Catalysts for Sustainable Fuel Generation

In the realm of sustainable energy solutions, the development of cost-effective and efficient catalysts holds paramount importance. This study presents the fabrication and characterization of a ternary alloy catalyst composed of praseodymium (Pr), nickel (Ni), and cobalt (Co), designated as PNC perovskite. The alloy was deposited on ceramics utilizing a third-generation magnetron sputtering system, with the deposition parameters meticulously optimized to achieve controlled composition and morphology. These modifications not only enhance the water oxidation reaction activity at intermediate temperature but also improve the bonding interface with the electrolyte.

Comprehensive structural and surface characterizations were conducted employing X-ray diffraction (XRD), transmission electron microscopy (TEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS). These analyses confirmed the uniform deposition of the perovskite thin layer and provided valuable insights into the catalytic surface chemistry. Furthermore, electrochemical cell tests and fuel generation evaluations demonstrated the catalyst’s potential to enhance hydrogen generation rate.

This approach underscores the significance of substrate-catalyst interactions in modulating activity. Moreover, it paves the way for catalyst and high-valued chemical production at a more economical rate. Our findings establish a catalyst capable of integrating with electrocatalyst, which represents a promising avenue for next-generation fuel conversion technology.