English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  In-situ X-ray Photoelectron Spectroscopy Study of Catalyst−Support Interactions and Growth of Carbon Nanotube Forests

Mattevi, C., Wirth, C. T., Hofmann, S., Blume, R., Cantoro, M., Ducati, C., et al. (2008). In-situ X-ray Photoelectron Spectroscopy Study of Catalyst−Support Interactions and Growth of Carbon Nanotube Forests. Journal of Physical Chemistry C, 112(32), 12207-12213. doi:10.1021/jp802474g.

Item is

Files

show Files
hide Files
:
403270JChemPhysC112(2008)12207.pdf (Preprint), 878KB
 
File Permalink:
-
Name:
403270JChemPhysC112(2008)12207.pdf
Description:
-
OA-Status:
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-
:
736671.pdf (Correspondence), 373KB
 
File Permalink:
-
Name:
736671.pdf
Description:
-
OA-Status:
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Mattevi, Cecilia, Author
Wirth, Christoph Tobias, Author
Hofmann, Stephan, Author
Blume, Raoul1, Author           
Cantoro, Mirco, Author
Ducati, Caterina, Author
Cepek, Cinzia, Author
Knop-Gericke, Axel1, Author           
Milne, Stuart, Author
Castellarin-Cudia, Carla, Author
Dolafi, Sheema, Author
Goldoni, Andrea, Author
Schlögl, Robert1, Author           
Robertson, John, Author
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

Content

show
hide
Free keywords: nanoparticles; carbon nanotubes; in-situ XPS; Carbon in catalysis
 Abstract: We study catalyst support interactions during chemical vapor deposition of carbon nanotubes by in situ X-ray photoelectron spectroscopy over a wide range of pressures. We observe Fe 2+ and 3+ interface states for metallic Fe on Al2O3 in the absence of measurable Al reduction. This support interaction is much stronger than that on SiO2, and it restricts Fe surface mobility. The resulting much narrower Fe catalyst particle size distribution on Al2O3 leads to a higher carbon nanotube nucleation density and a vertical nanotube alignment due to proximity effects. We record the growth kinetics of carbon nanotube forests by optical imaging to understand effects that contribute to growth termination.

Details

show
hide
Language(s): eng - English
 Dates: 2008-08-14
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 403270
DOI: 10.1021/jp802474g
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Journal of Physical Chemistry C
  Alternative Title : J. Phys. Chem. C
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 112 (32) Sequence Number: - Start / End Page: 12207 - 12213 Identifier: ISSN: 1932-7447