Interaction of Palladium Nano-Crystals with Hydrogen During PECVD Growth of Carbon Nanotubes

  • Wilfried Wunderlich
  • Masaki TanemuraEmail author
Part of the Advances in Solid State Physics book series (ASSP, volume 43)


Using plasma-enhanced chemical vapor deposition (PECVD) with Acetylene and Ammoniac on Pd-specimens Carbon nanotubes (CNT) could be produced successfully. Two different devices are compared and the conditions for best growth conditions are explained. The detailed analysis of electron diffraction pattern obtained by transmissions electron microscopy (TEM) of as-grown specimen showed an expansion of the Pd lattice, which can be explained by the formation of fcc-PdHx for x=0 …0.7. For x= 0.7…2 the first investigation of hexagonal -PdH2 is reported, which lattice spacing is independent on the hydrogen content. The amount of fcc-PdH and hcp-PdH2 increases when the specimens are treated subsequently with Hydrogen. A growth model is provided.


Hydrogen Treatment Good Growth Condition Palladium Hydride Interstitial Hydrogen Atom Vegard Rule 
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Authors and Affiliations

  1. 1.Department of Environmental TechnologyNagoya Institute of TechnologyNagoyaJapan

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