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Macroscopic Carbon Nanofibers for Use as Photocatalyst Support by Nicolas Keller; Guillaume Rebmann; Elodie Barraud; Orfan Zahraa; Valérie Keller is a Materials Science article available to read on EtoBox.

What is Macroscopic Carbon Nanofibers for Use as Photocatalyst Support about?

To reduce the drawbacks related to the use of powders or immobilized catalysts in gas-and liquid-phase applications, a new material for the use as photocatalyst support was obtained by chemical vapor decomposition at 700 8C of an ethane-hydrogen mixture over a woven glass microfiber supported nickel catalyst, consequently leading to carbon nanofibers with macroscopic shaping, consisting in woven glass microfibers supporting a dense network of entangled 40 nm diameter carbon nanofibers. This material could be directly used after synthesis without any subsequent purification treatment due to the high yield and totally selective carbon nanofiber production. This shape memory design results in the direct use of the carbon nanofiber-woven glass microfiber composite as support without any post-synthesis shaping. The presence of hydrophilic oxygenated groups located at the outer surface of the carbon nanofibers allowed the sol-gel preparation of a woven glass microfiber-carbon nanofiber supported TiO 2 (20 wt.%) catalyst, using tetraisopropoxide as precursor. This new photocatalyst was totally stable under UV irradiation.

Who reads Macroscopic Carbon Nanofibers for Use as Photocatalyst Support?

Author

Nicolas Keller; Guillaume Rebmann; Elodie Barraud; Orfan Zahraa; Valérie Keller

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0920-5861)

Published

2005

Language

EN

Field

Materials Science (Physical Sciences)