Effect of yttrium on the coking behavior of Fe-based superalloy in heavy hydrocarbon

Impaction of precursor gas-induced catalyst change on morphology, growth kinetics and field emission property of carbon nanofibers

“…Ethylene (C 2 H 4 ) and two other precursor gases n-hexane (n-C 6 H 14 ) and ndodecane (n-C 12 H 26 ) were selected based on our previous research. 22 Three types of carbon nanober (lamentous CNF, chain-like CNF and thick CNF) were obtained by varying the precursor gas phase at 1073 K on iron lm. It was found that the morphology, structure and grow kinetics of the CNFs dramatically depended on the size and evolution of the iron catalyst nucleated in the corresponding gas phase, which results in various eld emission performances of the as-prepared CNFs, and also gives a further reveal of the CNF formation by CCVD.…”