Synthesis of carbon nanotubes, nanofibers and encapsulated nanoparticles by decomposition of acetylene on Ge modified Pd catalysts | Zendy

Segura Rodrigo A. | Zendy; Tello Alejandra | Zendy; Häberle Patricio | Zendy

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Synthesis of carbon nanotubes, nanofibers and encapsulated nanoparticles by decomposition of acetylene on Ge modified Pd catalysts

Author(s) -

Segura Rodrigo A.,

Tello Alejandra,

Häberle Patricio

Publication year - 2007

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200675311

Subject(s) - acetylene , catalysis , bimetallic strip , carbon nanofiber , decomposition , materials science , carbon nanotube , carbon fibers , nanoparticle , chemical engineering , palladium , nanofiber , carbon nanotube supported catalyst , nanotechnology , inorganic chemistry , chemistry , organic chemistry , composite number , composite material , engineering

Different carbon nanostructures were synthesized by decomposition of acetylene over alumina supported palladium–germanium catalysts. The addition of small amounts of Ge to the Pd(1%)/γ‐Al 2 O 3 catalyst increases the yield of carbon nanotubes among other carbon products, in the decomposition of acetylene. The use of a higher Ge concentration (0.3%) in the catalyst induces the formation of carbon nanofibers. For larger Ge concentrations (0.5%) the bimetallic catalyst particles become encapsulated in a graphitic structure. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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