Results 31 to 40 of about 19,499 (187)

Amino multi-walled carbon nanotubes further improve the thermal conductivity of boron nitride/liquid crystal epoxy resin composites

open access: yeseXPRESS Polymer Letters, 2020
In this work, we introduced highly thermally conductive and fibrous amino multi-walled carbon nanotubes (MCNT-NH2) into hexagonal boron nitride/liquid crystal epoxy resin (h-BN/LCER) composites to improve the thermal conductivity of the composites. First,
T. F. Qin   +5 more
doaj   +1 more source

Four-dimensional vibrational spectroscopy for nanoscale mapping of phonon dispersion in BN nanotubes

open access: yesNature Communications, 2021
Mapping local phonon dispersion in individual nanostructures reveals their thermal, optical, and mechanical properties but requires high detection sensitivity.
Ruishi Qi   +10 more
doaj   +1 more source

Boron nitride nanotubes for gene silencing

open access: yesBiochimica et Biophysica Acta (BBA) - General Subjects, 2017
Non-viral gene delivery is increasingly investigated as an alternative to viral vectors due to low toxicity and immunogenicity, easy preparation, tissue specificity, and ability to transfer larger sizes of genes.In this study, boron nitride nanotubes (BNNTs) are functionalized with oligonucleotides (oligo-BNNTs).
Sen, Ozlem   +4 more
openaire   +3 more sources

Excitons in Boron Nitride Nanotubes: Dimensionality Effects [PDF]

open access: yesPhysical Review Letters, 2006
We show that the optical absorption spectra of boron nitride (BN) nanotubes are dominated by strongly bound excitons. Our first-principles calculations indicate that the binding energy for the first and dominant excitonic peak depends sensitively on the dimensionality of the system, varying from 0.7 eV in bulk hexagonal BN via 2.1 eV in the single ...
Wirtz L, Marini A, Rubio A
openaire   +8 more sources

The theoretical study on interaction of hydrogen with single-walled boron nitride nanotubes. I. The reactive force field ReaxFFHBN development [PDF]

open access: yes, 2005
We present a new reactive force field ReaxFFHBN derived to accurately model large molecular and condensed phase systems of H, B, and N atoms. ReaxFFHBN has been tested against quantum calculation data for B–H, B–B, and B–N bond dissociations and for H–B ...
Goddard, William A., III   +4 more
core   +1 more source

Raman Spectroscopy Of Boron Nitride Nanotubes And Boron Nitride — Carbon Composites [PDF]

open access: yesAIP Conference Proceedings, 2005
Boron nitride nanotubes (BN-NT) are topological analoges to single wall carbon nanotubes (SWCNT). We analysed and refined the filling process for SWCNTs and applied it to the BN-NTs. BN-NTs were first annealed in air to open the ends and to remove BN particles. A filling procedure with C60 fullerene via vapour phase was applied.
Hasi, F.   +4 more
openaire   +3 more sources

Structure and energetics of carbon, hexagonal boron nitride and carbon/hexagonal boron nitride single-layer and bilayer nanoscrolls

open access: yes, 2018
Single-layer and bilayer carbon and hexagonal boron nitride nanoscrolls as well as nanoscrolls made of bilayer graphene/hexagonal boron nitride heterostructure are considered.
Knizhnik, Andrey A.   +7 more
core   +1 more source

Mathematical Modelling for Joining Boron Nitride Graphene with Other BN Nanostructures

open access: yesAdvances in Mathematical Physics, 2020
Boron nitride (BN) nanomaterials such as boron nitride graphenes, boron nitride nanotubes, and boron nitride nanocones are attracting attention among the most promising nanomaterials due to their physical, chemical, and electronic properties when ...
Nawa A. Alshammari
doaj   +1 more source

Iron oxide doped boron nitride nanotubes: structural and magnetic properties

open access: yes, 2010
A first-principles formalism is employed to investigate the interaction of iron oxide (FeO) with a boron nitride (BN) nanotube. The stable structure of the FeO-nanotube has Fe atoms binding N atoms, with bond length of roughly $\sim$2.1 \AA, and binding ...
Alan B de Oliveira   +9 more
core   +1 more source

The adsorption of sulfur dioxide and ozone molecules on boron nitride nanotubes: A DFT study [PDF]

open access: yesJournal of Water and Environmental Nanotechnology, 2019
Density functional theory calculations were carried out to investigate the adsorption behaviors and electronic structures of SO2 and O3 molecules on the pristine boron nitride nanotubes.
Amirali Abbasi
doaj   +1 more source

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