Results 141 to 150 of about 2,354 (185)

Exposed Edge Planes of Cup-Stacked Carbon Nanotubes for an Electrochemical Capacitor

The Journal of Physical Chemistry Letters, 2010
The end sites of graphitic planes and their catalytic, chemical, physical, and electrochemical roles have been a longstanding issue in the surface chemistry of carbon science. In this study, complete exposure of the active edge sites on the outer surface of catalytically grown cup-stacked carbon nanotubes is accomplished using a conventional ...
In Young Jang, Hiroki Ogata, Ki Chul Park, Sun Hyung Lee, Jin Sung Park, Yong Chae Jung, Yong Jung Kim, Yoong Ahm Kim, Morinobu Endo   +8 more
openaire   +1 more source

The activation and hydrogen storage characteristics of the cup-stacked carbon nanotubes

Diamond and Related Materials, 2019
Abstract In this study, the cup-stacked carbon nanotubes (CSCNTs) are chemically modified and used for the hydrogen storage for the first time. The SEM and TEM analyses indicate that because they are formed by the stacking of the truncated conical graphene layers the inner- and outer-edges of which are completely exposed, during KOH activation the ...
Yang Li, Huanpeng Liu, Chenyu Yang, Miao Zhu, Taiping Chen   +4 more
openaire   +1 more source

Durability Investigation of Cup-Stacked Carbon Nanotubes Supported Pt as PEMFC Catalyst

ECS Transactions, 2006
The durability of Pt supported on cup stacked carbon nanotubes (CSCNTs) was investigated with an accelerated test using cyclic voltammetry as a tool. The loss in electrochemically active surface area is compared with that of an E-TEK Pt/Vulcan XC-72 carbon catalyst. The relatively lesser surface area loss in case of Pt/CSCNT catalyst is attributed
Mahesh M. Waje, Wenzhen Li, Zhongwei Chen, Yushan Yan   +3 more
openaire   +1 more source

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.
Shi-sheng Li, Peng-xiang Hou, Chang Liu
openaire   +1 more source

Preparation and Damping Properties of Cups-Stacked Carbon Nanotubes(CSCNTs)/Prime 20

Advanced Materials Research, 2012
CSCNT is a new type carbon nanotube, which has better physical and mechanical properties than the traditional materials. In this study, the effect of the dispersion and concentration of cup-stacked carbon nanotubes on mechanical properties of the CSCNTs/epoxy nanocomposites were investigated.
Yan Liu, Rui Feng Li, Hua Xin Peng, Zhi Wu Han   +3 more
openaire   +1 more source

Near‐Infrared Light‐Driven CO₂ Reduction on Cup‐Stacked Carbon Nanotubes

Angewandte Chemie
AbstractCarbon nanotubes feature one‐dimensional nature of collective excitations, wherein strong confinement of surface plasmons severely hinders the liberation of hot electrons (HEs), posing grand challenges for their utilization in photochemistry.
Suchan Song, Cuncun Xin, Wei Liu, Wenzhe Shang, Tianna Liu, Wentao Peng, Jungang Hou, Yantao Shi   +7 more
openaire   +2 more sources

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

Matrix cracking behaviors in carbon fiber/epoxy laminates filled with cup-stacked carbon nanotubes (CSCNTs)

Composites Part A: Applied Science and Manufacturing, 2007
This study investigated the damage accumulation behaviors in carbon fiber reinforced nanocomposite laminates under tensile loading. The nanocomposite laminates used in this study were manufactured from prepregs consisting of traditional carbon fibers and epoxy resin filled with cup-stacked carbon nanotubes (CSCNTs).
Tomohiro Yokozeki, Yutaka Iwahori, Shin Ishiwata   +2 more
openaire   +1 more source

Li@SWCNT and Cup-Stacked Carbon Nanotubes for Dye-Sensitezed Solar Cells

ECS Meeting Abstracts, 2015
Carbon Nanotubes (CNTs) are extensively studied for energy applications, mainly as additives in composite electrodes to promote electric and thermal conductivity, reinforce the mechanical strength, and enhance the flexibility and performance. Also, introduction of this nanomaterial into the semiconductors electrodes can reduce the resistance of the ...
Elaine Yoshiko Matsubara, Jose Mauricio Rosolen, Bruna Andressa Bregadiolli, Mirko Congiu, Carlos Frederico de Oliveira Graeff   +4 more
openaire   +1 more source

Electron-Transfer Reduction of Cup-Stacked Carbon Nanotubes Affording Cup-Shaped Carbons with Controlled Diameter and Size

Journal of the American Chemical Society, 2006
The electron-transfer reduction of cup-stacked carbon nanotubes (CSCNTs) with sodium naphthalenide and the subsequent treatment with 1-iodododecane results in electrostatically destacking of CSCNTs to afford cup-shaped carbons with controlled diameter and size.
Kenji, Saito, Masataka, Ohtani, Shunichi, Fukuzumi   +2 more
openaire   +2 more sources