Graphitic carbon nanofibers

Steigerwalt, S.E. et al., A Pt-Ru/graphitic carbon nanofiber nanocomposite exhibiting high relative performance as a direct-methanol fuel cell anode catalyst, J. Phys. Chem. B., 105, 8097, 2001. 

Fig. 7. Growth mechanism of graphitic carbon nanofibers. The illustration highlights the observation of spontaneous nickel step edge formation at the carbon-nickel interface. The observations in Reference (52) are consistent with a growth mechanism involving surface transport of carbon and nickel atoms along the graphene-nickel interface.

In the elementary reactions of the pyrolysis, the atomic carbon is formed first. Then it transforms into the final product, whether it be soot, graphite, carbon nanofibers, or so forth. Why does the presence of catalysts make it possible to grow carbon nanofibers or nanotubes instead of soot In many cases, this is the so called carbide cycle that is characteristic of the catalytic process of hydrocarbon pyrolysis that is responsible for the growth of the elongated structures but not soot particles. The primary car bon atoms produced by pyrolytic decomposition of the hydrocarbon molecules are dissolved in the metal particle of the active catalyst compo nent to form a nonstoichiometric carbide (the carbon solution in the... 

Hsin Yu L, Hwang Kuo C, Yeh C-T (2007) Poly(vinylpyrrolidone)-modified graphite carbon nanofibers as promising supports for PtRu catalysts in direct methanol fuel cells. J Am Chem Soc 129 9999... 

Zhou Z, Liu K, Lai C, Zhang L, Li J, Hou H, Reneker D H and Fong H (2010) Graphitic carbon nanofibers developed from bundles of aligned electrospun polyacrylonitrile nanofibers containing phosphoric acid. Polymer 51 2360-2367. 

Steigerwalt ES, Deluga GA, Lukehart CM. Rapid preparation of Pt-Ru/graphitic carbon nanofiber nanocomposites as DMFC anode catalysts using microwave processing. J Nanosci Nanotechno 2003 3 247-51. 

Tang H, Chen J, Nie L, Liu D, Deng W, Kuang Y, et al. High dispersion and electrocatalytic properties of platinum nanoparticles on graphitic carbon nanofibers (GCNFs). J Coll Interface Sci 2004 269 26-31. 

Lu W, Steiqerwalt ES, Moore JT, Sullivan LM, Collins WE, Lukehart CM (2004) Carbothermal transformation of a graphitic carbon nanofiber/silica aerogel composite to a SiC/silica nanocomposite. J Nanosci Nanotechnol 4(7) 803-8... 

Camean I, Garcia AB, Suelves 1 (2012) Graphitized carbon nanofibers for use as anodes in lithium-ion batteries importance of textural and structural properties. J Power Source 198 303-307... 

Lukehart and coworkers [26] successfully prepared a Pt-Ru/graphitic carbon nanofiber nanocomposite exhibiting high relative performance as a direct methanol fuel cell anode catalyst Multistep deposition and reactive decomposition of a single-soiuce molecular precursor of Pt and Ru metal on herringbone graphitic carbon nanofibers affords a Pt-Ru/GNF nanocomposite containing Pt-Ru alloy nanoclusters widely dispersed on the GNF support The nanocomposite has a total metal content of 42 wt% with a bulk Pt/Ru atomic ratio of about 1 1 and... 

Park T-H, Yeo J-S, Seo M-H, Miyawaki J, Mochida I, Yoon S-H (2013) Enhancing the rate performance of graphite anodes through addition of natural graphite/carbon nanofibers in lithium-ion batteries. Electrochim Acta 93 236-240... 

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