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Laser synthesis of supported catalysts for carbon nanotubes
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | VanderWal, Randall L. Hall, Lee J. Schubert, Kathy Technical Monitor Sherry, Leif J. Ticich, Thomas M. |
| Copyright Year | 2003 |
| Description | Four methods of laser assisted catalyst generation for carbon nanotube (CNT) synthesis have been tested. These include pulsed laser transfer (PLT), photolytic deposition (PLD), photothermal deposition (PTD) and laser ablation deposition (LABD). Results from each method are compared based on CNT yield, morphology and structure. Under the conditions tested, the PLT was the easiest method to implement, required the least time and also yielded the best pattemation. The photolytic and photothermal methods required organometallics, extended processing time and partial vacuums. The latter two requirements also held for the ablation deposition approach. In addition to control of the substrate position, controlled deposition duration was necessary to achieve an active catalyst layer. Although all methods were tested on both metal and quartz substrates, only the quartz substrates proved to be inactive towards the deposited catalyst particles. |
| File Size | 6099410 |
| Page Count | 16 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20030105565 |
| Archival Resource Key | ark:/13960/t8gf5rs1m |
| Language | English |
| Publisher Date | 2003-09-01 |
| Access Restriction | Open |
| Subject Keyword | Inorganic, Organic And Physical Chemistry Thin Films Scanning Tunneling Microscopy Transmission Electron Microscopy Photolysis Catalysts Morphology Carbon Nanotubes Pulsed Laser Deposition Quartz Deposition Graphitization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
