M.S. Kim

TL;DR: In this article, a comprehensive investigation of the interaction of selected hydrocarbons with copper-nickel and nickel catalysts was carried out and detailed analysis of both the yield of gaseous products and the amount of solid carbon deposited on the catalyst surfaces has enabled to account for the entire course of the reaction and postulate the structural arrangements of reactive intermediates formed in various systems.

TL;DR: In this article, a variety of experimental techniques, including controlled atmosphere electron microscopy, thermogravimetry, and electrical conductivity measurements, were used to examine the structures of carbon filaments produced from the decomposition of hydrocarbons over copper-nickel and nickel catalysts.

TL;DR: In this article, a reversible deactivation phenomenon is observed when copper-nickel particles are reacted in ethylene at temperatures in excess of 700[degrees]C. This deactivation process involves not only the reactions occurring at the gas/catalyst interface but also modifications in the particle chemistry arising from dissolved carbon and hydrogen species, and also the influence of the deposited graphite in the form of a filament at the rear of the particle.

TL;DR: In this paper, a comprehensive investigation of the interaction of selected hydrocarbons with copper-nickel and nickel catalysts was carried out and detailed analysis of both the yield of gaseous products and the amount of solid carbon deposited on the catalyst surfaces has enabled to account for the entire course of the reaction and postulate the structural arrangements of reactive intermediates formed in various systems.

TL;DR: In this paper, the authors emphasized some of the "deleterious" features associated with the presence of carbon filaments, e.g., their unexpected resistance to oxidation and the strong adhesion to metal surfaces in steam cracker tubes which in turn provides a high surface which acts as a collection center for amorphous carbon.