Fibers Vapor-grown carbon nanofibers

A wide variety of carbon materials has been used in this study, including multi-wall carbon nanotubes (sample MWNT) chemically activated multi-wall carbon nanotubes (sample A-MWNT)16, commercially available vapor grown carbon nanofibers (sample NF) sample NF after chemical activation with K.OH (sample A-NF) commercially pitch-based carbon fiber from Kureha Company (sample CF) commercially available activated carbons AX-21 from Anderson Carbon Co., Maxsorb from Kansai Coke and Chemicals and commercial activated carbon fibers from Osaka Gas Co. (A20) a series of activated carbons prepared from a Spanish anthracite (samples named K.UA) and Subituminous coal (Samples H) by chemical activation with KOH as described by D. Lozano-Castello et al.17 18 activated carbon monoliths (ACM) prepared from different starting powder activated carbons by using a proprietry polymeric binder from Waterlink Sutcliffe Carbons, following the experimental process described in the previous paper13. 

Carbon nanofibers or vapor-grown carbon nanofibers are sp hybridized one-dimensional carbon nanostructures. Three types of carbon nanofiber structures classified based on the angle of graphene sheets are stacked, cup-stacked, and nanotubular [10]. The diameter of carbon nanofibers lies in between carbon nanotubes (100 nm) and carbon fibers (1000 nm). The synthesis procedures used for carbon nanofibers include chemical vapor deposition (CVD). 

Certainly, the future of carbon fibers may be strongly influenced by nanofibers and Pyrograf Products Inc., a subsidiary of Applied Sciences Inc., have built a plant to produce Pyrograf III-R a vapor grown carbon nanofiber. 

Vapor-Grown Carbon Fibers and Carbon Nanofibers.51... 

Brennsteiner et al. ° used vapor-grown carbon fibers, a coal-derived foam, and carbon nanofibers for electrochemical removal of heavy metals, including Cd ions. These workers suggested that the adsorptive removal was due to the development of porosity and high surface area of the carbon materials. They did not consider the role of surface chemistry of the activated carbon or the pH of the solution in influencing the adsorption of Cd(II) by carbons. Jia and Thomas studied the... 

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