Results 141 to 150 of about 2,371 (171)

Fracture toughness improvement of CFRP laminates by dispersion of cup-stacked carbon nanotubes

Composites Science and Technology, 2009
Several techniques are introduced to enhance the interlaminar fracture toughness of CFRP laminates using cup-stacked carbon nanotubes (CSCNTs). Prepared CSCNT-dispersed CFRP laminates are subject to Double Cantilever Beam (DCB) and End Notched Flexure (ENF) tests in order to obtain mode-I and mode-II interlaminar fracture toughness.
Tomohiro Yokozeki, Yutaka Iwahori, Masahiro Arai   +2 more
exaly   +2 more sources

Semiconducting properties of cup-stacked carbon nanotubes

Carbon, 2009
The current–voltage characteristics of individual cup-stacked carbon nanotubes (CSCNTs) were investigated in situ inside the transmission electron microscope. Different from other quasi-1D carbon structures such as multi-walled carbon nanotubes, carbon nanofibers or graphitic fibers that normally behave as a metallic conductor of electrons, individual ...
Liu, Qingfeng, Ren, Wencai, Chen, Zhi Gang, Yin, Lichang, Li, Feng, Cong, Hongtao, Cheng, Hui Ming   +6 more
openaire   +4 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, David, Brunel, Aurelien, Gohier, Leandro, Sacco, Marc, Châtelet, Costel-Sorin, Cojocaru   +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, Tsuyohiko Fujigaya, Naotoshi Nakashima   +2 more
openaire   +1 more source

Fluorination of Cup-stacked Carbon Nanotubes, Structures and Properties

MRS Proceedings, 2004
ABSTRACTCup-stacked carbon nanotubes (Cup-CNTs) was fluorinated in a temperature range RT-500• •by 0.5–1 atm elemental fluorine. The F/C atomic ratio (CF0.4-CF1.2) and the color are strongly dependent on the fluorination conditions. The color of fluorinated Cup-CNTs (F-Cup-CNTs) varies from black, through gray and yellow to white.
Hidekazu Touhara, Akiko Yonemoto, Kazunao Yamamoto, Shingo Komiyama, Shinji Kawasaki, Fujio Okino, Takashi Yanagisawa, Morinobu Endo   +7 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, Thomas C, O'Connor, Katsuhisa, Higashiyama, Kohei, Nishi, Kazunori, Fujisawa, Hiroyuki, Muramatsu, Yoong Ahm, Kim, Bobby G, Sumpter, Vincent, Meunier, Mauricio, Terrones, Morinobu, Endo   +10 more
openaire   +2 more sources

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, Kazunori Fujisawa, Hiroyuki Muramatsu, Takuya Hayashi, Yoong Ahm Kim, Takahashi Yanagisawa, Morinobu Endo, Mildred S. Dresselhaus   +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, Katsuya, Teshima, In Young, Jang, Kunio, Yubuta, Yong Jung, Kim, Yoong Ahm, Kim, Toetsu, Shishido, Morinobu, Endo, Shuji, Oishi   +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, Rui Feng Li, Hua Xin Peng, Andy Limmack, Zhi Wu Han   +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, Parmar, R, Matsubara, EY, Minicucci, M, Gunnella, R, Rosolen, JM   +5 more
openaire   +2 more sources