Pt1?xNix Alloy Nanoparticles Embedded in Self-Grown Carbon Nanofibers: Synthesis, Properties and Catalytic Activity in HER

The development of new heterogeneous Pt-containing catalysts has retained its relevance over the past decades. present paper describes method to produce metal–carbon composites, Pt1?xNix/CNF, with an adjustable Pt/Ni ratio. composites represent Pt1?xNix (x = 0.0–1.0) nanoparticles embedded within a structure carbon nanofibers (CNF). synthesis is based on spontaneous disintegration alloys in ethylene-containing atmosphere formation CNF. initial were prepared by thermolysis multicomponent precursors. They possess porous formed fragments 100–200 nm. As was shown X-ray diffraction analysis, crystal containing 0–30 and 60–100 at.% Ni corresponds fcc lattice platinum (Fm-3m), while Pt0.50Ni0.50 sample intermetallic compound tetragonal (P4/mmm). impact content samples their activity ethylene decomposition studied as well. revealed, efficiency this process increases rise concentration. composite examined electrochemical hydrogen evolution reaction. synthesized Pt1-xNix/CNF demonstrated superior if compared Pt/Vulcan commercial catalyst.