Synthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materias
Carbon nanombes have hollow interiors with internal diameters ranging from 0.5 - 20 nm although more typically 1 - 4 nm. It is now well established that these internal cavities can be filled with crystalline and molecular materials. Filling of single walled carbon nanotubes (SWNTs) are normally fill...
| প্রধান লেখক: | , , , , |
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| বিন্যাস: | Conference item |
| প্রকাশিত: |
2004
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| _version_ | 1826256727014637568 |
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| author | Sloan, J Kirkland, A Hutchison, J Friedrichs, S Green, M |
| author_facet | Sloan, J Kirkland, A Hutchison, J Friedrichs, S Green, M |
| author_sort | Sloan, J |
| collection | OXFORD |
| description | Carbon nanombes have hollow interiors with internal diameters ranging from 0.5 - 20 nm although more typically 1 - 4 nm. It is now well established that these internal cavities can be filled with crystalline and molecular materials. Filling of single walled carbon nanotubes (SWNTs) are normally filled by direct mixing of the molten filling material and the nanotubes at elevated temperature. Characterisation of filled carbon nanotubes relies mainly on high-resolution transmission electron microscopy (HRTEM) and extended resolution HRTEM techniques. The crystals formed within the narrower SWNTs are often only a few atoms in cross section with a large proportion of atoms lying on the surface of the encapsulated crystals. An extreme example is in the case of a 2 x 2 crystal of potassium iodide which is effectively an 'all surface' crystal. The structures of the nanocrystals encapsulated inside SWNTs show other significant differences compared to the corresponding bulk materials. For example, inter-atomic differences can be substantially greater (i.e. by as much as similar to20%) for SWNT encapsulated materials. Several examples of filled SWNTs are described including those filled with simple metal halide salts, covalent metal halides and molecular species as in o-carborane. |
| first_indexed | 2024-03-06T18:06:51Z |
| format | Conference item |
| id | oxford-uuid:01b65ffb-9f22-402c-a1b6-7c9010e292cb |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:06:51Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:01b65ffb-9f22-402c-a1b6-7c9010e292cb2022-03-26T08:36:31ZSynthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materiasConference itemhttp://purl.org/coar/resource_type/c_5794uuid:01b65ffb-9f22-402c-a1b6-7c9010e292cbSymplectic Elements at Oxford2004Sloan, JKirkland, AHutchison, JFriedrichs, SGreen, MCarbon nanombes have hollow interiors with internal diameters ranging from 0.5 - 20 nm although more typically 1 - 4 nm. It is now well established that these internal cavities can be filled with crystalline and molecular materials. Filling of single walled carbon nanotubes (SWNTs) are normally filled by direct mixing of the molten filling material and the nanotubes at elevated temperature. Characterisation of filled carbon nanotubes relies mainly on high-resolution transmission electron microscopy (HRTEM) and extended resolution HRTEM techniques. The crystals formed within the narrower SWNTs are often only a few atoms in cross section with a large proportion of atoms lying on the surface of the encapsulated crystals. An extreme example is in the case of a 2 x 2 crystal of potassium iodide which is effectively an 'all surface' crystal. The structures of the nanocrystals encapsulated inside SWNTs show other significant differences compared to the corresponding bulk materials. For example, inter-atomic differences can be substantially greater (i.e. by as much as similar to20%) for SWNT encapsulated materials. Several examples of filled SWNTs are described including those filled with simple metal halide salts, covalent metal halides and molecular species as in o-carborane. |
| spellingShingle | Sloan, J Kirkland, A Hutchison, J Friedrichs, S Green, M Synthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materias |
| title | Synthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materias |
| title_full | Synthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materias |
| title_fullStr | Synthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materias |
| title_full_unstemmed | Synthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materias |
| title_short | Synthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materias |
| title_sort | synthesis and structural characterisation of single wall carbon nanotubes filled with ionic and covalent materias |
| work_keys_str_mv | AT sloanj synthesisandstructuralcharacterisationofsinglewallcarbonnanotubesfilledwithionicandcovalentmaterias AT kirklanda synthesisandstructuralcharacterisationofsinglewallcarbonnanotubesfilledwithionicandcovalentmaterias AT hutchisonj synthesisandstructuralcharacterisationofsinglewallcarbonnanotubesfilledwithionicandcovalentmaterias AT friedrichss synthesisandstructuralcharacterisationofsinglewallcarbonnanotubesfilledwithionicandcovalentmaterias AT greenm synthesisandstructuralcharacterisationofsinglewallcarbonnanotubesfilledwithionicandcovalentmaterias |