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Free-Standing Nitrogen-Doped Cup-Stacked Carbon Nanotube Mats for Potassium-Ion Battery Anodes

ACS Applied Energy Materials, 2018
Free-standing nitrogen-doped cup-stacked carbon nanotube (NCSCNT) mats were synthesized and tested as anodes for potassium-ion batteries (KIBs). The edge-open structure character of the NCSCNTs allows a facile insertion of K+ ions into the carbon nanotubes.
Alexander Star   +2 more
exaly   +2 more sources

Cup‐Stacked Carbon Nanotube Schottky Diodes for Photovoltaics and Photodetectors

Advanced Materials, 2014
High performance optoelectronic devices based on cup-stacked carbon nanotubes are realized. Based on a Schottky barrier model, rectifying behaviors and high photoresponse are observed by using growth catalysts as nanoscale electronic contacts. Similar performances are also obtained and furthermore tuned by using nanotube’s defective surface as ...
Ki-Hwan, Kim   +5 more
openaire   +2 more sources

Graphene unrolled from ‘cup-stacked’ carbon nanotubes

Carbon, 2012
Abstract High quality graphene with a large area and smooth edges has been obtained by unrolling the so-called ‘cup-stacked’ carbon nanotubes (CSCNTs) by the solution-phase oxidation and reduction. Atomic force microscopy and transmission electron microscopy observations reveal that the obtained graphene layers can even have a size of 20 μm in width ...
Qingfeng Liu   +2 more
openaire   +1 more source

A reversible strain-induced electrical conductivity in cup-stacked carbon nanotubes

Nanoscale, 2013
We have used in situ current-voltage measurements of cup-stacked carbon nanotubes (CSCNTs) to establish reversible strain induced (compressive bending) semiconducting to metallic behavior. The corresponding electrical resistance decreases by two orders of magnitude during the process, and reaches values comparable to those of highly crystalline multi ...
Takuya, Hayashi   +10 more
openaire   +2 more sources

Growth of a cup-stacked carbon nanotube carpet with a superhydrophobic surface

New Carbon Materials, 2013
A carpet structure composed of high purity cup-stacked carbon nanotubes (CSCNTs) was synthesized by a catalytic chemical vapor deposition method. In a 15-min growth time, the CSCNT carpet with a height up to ∼300 μm and carbon purity above 99.9 wt.% was prepared.
LIShisheng, HOUPengxiang, LIUChang
openaire   +1 more source

A simple route to short cup-stacked carbon nanotubes by sonication

Carbon, 2010
A simple but effective way of producing short cup-stacked carbon nanotubes with high quality is demonstrated using sonication in an ethanol/distilled water mixture. The substantial removal of amorphous carbon deposited on the truncated conical layer-stacked nanotubes by controlled air oxidation was a critical precondition to cut the nanotubes without ...
Daisuke Shimamoto   +7 more
openaire   +1 more source

An environmentally friendly dispersion method for cup-stacked carbon nanotubes in a water system

Chemical Communications, 2010
A dry process using VUV light was confirmed as a novel technique to attach functional groups onto cup-stacked carbon nanotubes and to develop their isolation in a water system without the use of dispersing agents.
Sun Hyung, Lee   +8 more
openaire   +2 more sources

Damping Properties of Cups-Stacked Carbon Nanotubes (CSCNTs)/RTM6 Composites

Advanced Materials Research, 2012
Carbon nanotubes have better physical and mechanical behaviors than the traditional materials, in this study cups-stacked carbon nanotubes (CSCNTs) were filled into epoxy nancomposites to fabricate CSCNTs/epoxy nanocomposites. RTM6 was used by epoxy resin system. The cups-stacked carbon nanotubes (CSCNTs) were dispersed into the RTM6 matrix.
Yan Liu   +4 more
openaire   +1 more source

Nanostructured V2O5.nH2O/cup-stacked carbon nanotube composite with remarkable Li+ specific capacity

Solid State Ionics, 2021
Abstract Nanostructures for lithium intercalation can be obtained by combining carbon nanotubes with nanoparticles, to achieve a composite that can be applied as electrochemical energy storage device. Depending on the chemical composition and architecture of the nanostructure, it can be used to develop batteries, supercapacitors, or hybrid battery ...
Neto, DBD   +5 more
openaire   +2 more sources

Water Confined in Hydrophobic Cup-Stacked Carbon Nanotubes beyond Surface-Tension Dominance

The Journal of Physical Chemistry Letters, 2019
Water confined in carbon nanotubes (CNTs) can exhibit distinctly different behaviors from the bulk. We report transmission electron microscopy (TEM) observation of water phases inside hydrophobic cup-stacked CNTs exposed to high vacuum. Unexpectedly, we observed stable water morphologies beyond surface-tension dominance, including nanometer thin free ...
Qin-Yi Li   +4 more
openaire   +2 more sources

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