Doping and connecting carbon nanotubes

Terrones, Mauricio; Grobert, Nicole; Terrones, Humberto; Ajayan, P. M.; Banhart, Florian; Blase, Xavier; Carroll, David; Czerw, R.; Foley, Brian M.; Charlier, Jean‐Christophe; Kamalakaran, R.; Kohler-Redlich, P.; Rühle, M.; Seeger, T.

doi:10.1080/10587250215249

Cited by 79 publications

(111 citation statements)

References 12 publications

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“…It is also known that the structural defects in the form of edge sites can be generated in N-CNTs via the presence of in-layer pyridine groups. 21 Since the double-layer capacitance of edge sites is reported to be an order of magnitude higher than that of the basal plane, 22 one of the contributors towards the higher capacitance of the N-CNT sample is its higher edge site to basal plane ratio, as observed in the higher Raman D/G ratio. By an estimation, we considered that each pyridine group (as measured by XPS) can induce the formation of two C vacancies; then one can expect an additional 4% of edge sites in N-CNTs which could be responsible for a maximum of one-fold increase in the capacitance, which is clearly lower than the observed 5 to 7-fold increase.…”

Section: Paper: C4cc04876hmentioning

confidence: 99%

On the origin of the high capacitance of nitrogen-containing carbon nanotubes in acidic and alkaline electrolytes

et al. 2014

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Section: Paper: C4cc04876hmentioning

confidence: 99%

On the origin of the high capacitance of nitrogen-containing carbon nanotubes in acidic and alkaline electrolytes

et al. 2014

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“…215,216 Another widely used parametrization for carbon by Xu et al 217 has been successfully applied to simulations of irradiation effects in carbon nanomaterials. 12,18,218 …”

Section: E Tight-binding Methodsmentioning

confidence: 99%

“…Doping may be implemented by intercalating foreign atoms into the open space in the carbon network [394][395][396] or by substituting the host atoms with impurities. 218,[397][398][399][400][401][402][403][404][405] As for substitutional doping, much attention has recently been given to the doping of nanotubes with boron and nitrogen atoms. This is a natural choice of the dopant, as B and N atoms are the neighbors of C in the Periodic Table and thus have roughly the same atomic radius as C, while they possess one electron less or more than C, respectively.…”

Section: Irradiation-mediated Doping Of Carbon Nanotubes With Foreignmentioning

confidence: 99%

Ion and electron irradiation-induced effects in nanostructured materials

Krasheninnikov¹,

Nordlund²

2010

Journal of Applied Physics

944

591

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A common misconception is that the irradiation of solids with energetic electrons and ions has exclusively detrimental effects on the properties of target materials. In addition to the well-known cases of doping of bulk semiconductors and ion beam nitriding of steels, recent experiments show that irradiation can also have beneficial effects on nanostructured systems. Electron or ion beams may serve as tools to synthesize nanoclusters and nanowires, change their morphology in a controllable manner, and tailor their mechanical, electronic, and even magnetic properties. Harnessing irradiation as a tool for modifying material properties at the nanoscale requires having the full microscopic picture of defect production and annealing in nanotargets. In this article, we review recent progress in the understanding of effects of irradiation on various zero-dimensional and one-dimensional nanoscale systems, such as semiconductor and metal nanoclusters and nanowires, nanotubes, and fullerenes. We also consider the two-dimensional nanosystem graphene due to its similarity with carbon nanotubes. We dwell on both theoretical and experimental results and discuss at length not only the physics behind irradiation effects in nanostructures but also the technical applicability of irradiation for the engineering of nanosystems.

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“…41 The produced N-MWNTs were then heat treated under an argon flow for 30 min at various temperatures, ranging from 1000 °C to 2000 °C, using a graphite furnace. Before heating, the graphite furnace was vacuumed (0.13 MPa) and then flushed with argon gas (1 L/min) in order to eliminate oxygen or exclude the possibility of oxidation in 5 nanotube sample.…”

Section: Methodsmentioning

confidence: 99%