Decomposition of Ethylene on Multi-Component [NiFeCo]CrCu Alloy to Produce Carbon Nanomaterial

The search for new efficient catalysts for hydrocarbon pyrolysis to produce carbon nanomaterials remains an urgent task. In this work, a five-component [NiFeCo]CrCu alloy prepared by the method of combined electric explosion of wires was tested as a catalyst. According to X-ray diffraction analysis, the initial sample is a solid solution based on a face-centered lattice of nickel. The kinetic regularities of ethylene decomposition within the temperature range of 500–775°С were studied. It was shown that the multicomponent alloy ensures efficient ethylene decomposition while maintaining high productivity for the carbon nanomaterial (95 g/g and more) in a wide temperature range (600–750°С). Electron microscopy studies showed that the carbon material is represented by nanofibers, with variable structure and degree of ordering, depending on the pyrolysis temperature.