Journal article
Effects of Deposition Conditions on the Structure and Chemical Properties of Carbon Nanopipettes
Chemical vapor deposition, v 15(7‐9)
Sep 2009
Abstract
Carbon nanopipettes (CNPs) are integrated devices combining a nanometer‐size carbon tip with a glass pipette. The carbon tip is produced by catalytic CVD. In this paper, it is demonstrated that the structure of the CNPs can be controlled by varying the synthesis parameters. Increased carbon graphitization is observed as the synthesis temperature increases from 890 °C to 950 °C. A similar effect is achieved by lowering the carbon precursor (methane) concentration from 60% to 20%. Changes in the amount of catalyst do not have a significant effect on the carbon graphitization. At the same time, CNPs with relatively large amounts of hydrogen bonds on the surface are obtained by using a high methane concentration. This finding is used to facilitate the functionalization of the CNPs with gold nanoparticles.
Carbon nanopipettes (CNPs) are integrated devices combining a nanometer‐size carbon tip with a glass pipette. The carbon tip is produced by catalytic CVD. In this paper, it is demonstrated that the structure of the CNPs can be controlled by varying the synthesis parameters. Increased carbon graphitization is observed as the synthesis temperature increases from 890 °C to 950 °C. A similar effect is achieved by lowering the carbon precursor (methane) concentration from 60% to 20%. Changes in the amount of catalyst do not have a significant effect on the carbon graphitization. At the same time, CNPs with relatively large amounts of hydrogen bonds on the surface are obtained by using a high methane concentration. This finding is used to facilitate the functionalization of the CNPs with gold nanoparticles.
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Details
- Title
- Effects of Deposition Conditions on the Structure and Chemical Properties of Carbon Nanopipettes
- Creators
- Elina A VitolMichael G SchrlauSanjib BhattacharyyaPaul DucheyneHaim H BauGary FriedmanYury Gogotsi
- Publication Details
- Chemical vapor deposition, v 15(7‐9)
- Publisher
- WILEY‐VCH Verlag; Weinheim
- Number of pages
- 5
- Grant note
- Nanotechnology Institute (NTI)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering; Materials Science and Engineering
- Web of Science ID
- WOS:000270343800008
- Scopus ID
- 2-s2.0-70349609633
- Other Identifier
- 991014878384504721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Electrochemistry
- Materials Science, Coatings & Films
- Physics, Condensed Matter