Tuning between crystallographically aligned carbon nanotube growth and graphene etching
The catalytic activity of nanoparticles to form either crystallographically oriented etch tracks or carbon nanotubes on top of few-layer graphene is tuned through the application of a methane feedstock gas. The catalytic activity for these two processes is found to vary at different rates as a funct...
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| Veröffentlicht in: | Carbon (New York) 2014-10, Vol.77, p.958-963 |
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| container_title | Carbon (New York) |
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| creator | Nasseri, Mohsen Hunley, D. Patrick Sundararajan, Abhishek Boland, Mathias J. Strachan, Douglas R. |
| description | The catalytic activity of nanoparticles to form either crystallographically oriented etch tracks or carbon nanotubes on top of few-layer graphene is tuned through the application of a methane feedstock gas. The catalytic activity for these two processes is found to vary at different rates as a function of the amount of applied feedstock gas. These differences provide a window of growth parameters in which nanotubes can be grown on the surface of few-layer graphene without significant formation of etch tracks. Since this surface growth results in nanotubes which can be crystallographically aligned to the underlying graphene layers, this development could lead to improved electrical interfaces between nanotubes and graphene without the deleterious consequences of catalytic etching. Such improved interfaces could prove to be useful in applications benefiting from low interfacial electrical resistances between one-dimensional and two-dimensional materials, such as in supercapacitor applications. |
| doi_str_mv | 10.1016/j.carbon.2014.06.011 |
| format | Article |
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Patrick ; Sundararajan, Abhishek ; Boland, Mathias J. ; Strachan, Douglas R.</creator><creatorcontrib>Nasseri, Mohsen ; Hunley, D. Patrick ; Sundararajan, Abhishek ; Boland, Mathias J. ; Strachan, Douglas R.</creatorcontrib><description>The catalytic activity of nanoparticles to form either crystallographically oriented etch tracks or carbon nanotubes on top of few-layer graphene is tuned through the application of a methane feedstock gas. The catalytic activity for these two processes is found to vary at different rates as a function of the amount of applied feedstock gas. These differences provide a window of growth parameters in which nanotubes can be grown on the surface of few-layer graphene without significant formation of etch tracks. Since this surface growth results in nanotubes which can be crystallographically aligned to the underlying graphene layers, this development could lead to improved electrical interfaces between nanotubes and graphene without the deleterious consequences of catalytic etching. Such improved interfaces could prove to be useful in applications benefiting from low interfacial electrical resistances between one-dimensional and two-dimensional materials, such as in supercapacitor applications.</description><identifier>ISSN: 0008-6223</identifier><identifier>EISSN: 1873-3891</identifier><identifier>DOI: 10.1016/j.carbon.2014.06.011</identifier><identifier>CODEN: CRBNAH</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Alignment ; Carbon nanotubes ; Catalysis ; Catalytic activity ; Chemistry ; Colloidal state and disperse state ; Cross-disciplinary physics: materials science; rheology ; Crystallography ; Etching ; Exact sciences and technology ; General and physical chemistry ; Graphene ; Materials science ; Methods of nanofabrication ; Nanoscale materials and structures: fabrication and characterization ; Nanotubes ; Physical and chemical studies. Granulometry. Electrokinetic phenomena ; Physics ; Surface chemistry ; Theory of reactions, general kinetics. Catalysis. 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Since this surface growth results in nanotubes which can be crystallographically aligned to the underlying graphene layers, this development could lead to improved electrical interfaces between nanotubes and graphene without the deleterious consequences of catalytic etching. Such improved interfaces could prove to be useful in applications benefiting from low interfacial electrical resistances between one-dimensional and two-dimensional materials, such as in supercapacitor applications.</description><subject>Alignment</subject><subject>Carbon nanotubes</subject><subject>Catalysis</subject><subject>Catalytic activity</subject><subject>Chemistry</subject><subject>Colloidal state and disperse state</subject><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Crystallography</subject><subject>Etching</subject><subject>Exact sciences and technology</subject><subject>General and physical chemistry</subject><subject>Graphene</subject><subject>Materials science</subject><subject>Methods of nanofabrication</subject><subject>Nanoscale materials and structures: fabrication and characterization</subject><subject>Nanotubes</subject><subject>Physical and chemical studies. Granulometry. 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| ispartof | Carbon (New York), 2014-10, Vol.77, p.958-963 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Alignment Carbon nanotubes Catalysis Catalytic activity Chemistry Colloidal state and disperse state Cross-disciplinary physics: materials science rheology Crystallography Etching Exact sciences and technology General and physical chemistry Graphene Materials science Methods of nanofabrication Nanoscale materials and structures: fabrication and characterization Nanotubes Physical and chemical studies. Granulometry. Electrokinetic phenomena Physics Surface chemistry Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry |
| title | Tuning between crystallographically aligned carbon nanotube growth and graphene etching |
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