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Preparation of carbonaceous thin films by plasma-assisted chemical vapor deposition and their application to energy devices
564
CARBON
4 6 ( 2 0 0 8 ) 5 6 2 –5 6 5
showed that the nanocarbons were dispersed homogeneously and
for electromagnetic wave absorbers, remote heating materials,
that the temperature dependence of the electrical resistivity could
visualization elements of microwaves, tactile/proximity sensor
be controlled by the addition of two types of nanocarbon fillers.
elements, micro-antenna, chiral catalysts, bio-activators or bio-
The optimum PTC properties were observed for the samples with
deactivators, energy converters, etc.
a mixture of VGCFs and SCNTs at 30 wt% of total nanocarbons. [TANSO 2007 (No. 230) 338–44.]
[TANSO 2007 (No. 230) 329–33.]
doi:10.1016/j.carbon.2007.11.032
doi:10.1016/j.carbon.2007.11.030
Preparation of thin films of graphite-like B/C/N materials on Ni(1 1 1) and HOPG substrates
Carbon deposition in nanospaces through CVD Hirotomo Nishihara, Hironori Orikasa, Takashi Kyotani
Shinya Kuroda a, Yusuke Nakagawa a, Masayuki Kawaguchi a,b
Institute for Multidisciplinary Research for Advanced Materials, Tohoku
a
University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Graduate School of Engineering, Osaka Electro-Communication Uni-
versity, 18-8 Hatsu-cho, Neyagawa, Osaka 572-8530, Japan b
Academic Frontier Promotion Center, Osaka Electro-Communica-
tion
University,
18-8
Hatsu-cho,
Neyagawa,
Osaka
572-8530,
Japan Thin films of graphite-like layered materials containing boron, carbon and nitrogen (B/C/N materials) were prepared on substrates of Ni(1 1 1) single crystals and highly oriented pyrolytic graphite (HOPG) by low pressure CVD using acrylonitrile and boron trichloride as starting materials. Electron spectroscopy for chemical analysis (ESCA) and reflective high energy electron diffraction (RHEED) suggest that highly oriented and crystalline thin films of B/C/N were deposited on the Ni(1 1 1) substrate with catalytic ability, while a small amount of B/C/N film was deposited on
It is difficult to achieve uniform carbon deposition in nanospaces such as micropores and mesopores using CVD. However, we have recently demonstrated that, even in molecular-scale and labyrinthine pores like the nanochannels of zeolites, uniform carbon deposition is possible if CVD conditions are carefully selected and optimized. This review shows several examples of carbon deposition in micro- and mesopores and shows key factors that impact the uniform deposition into such nanospaces. [TANSO 2007 (No. 230) 345–51.] doi:10.1016/j.carbon.2007.11.033
a part of the HOPG substrate. Transmission electron microscopy (TEM) indicates the B/C/N thin film had a layered structure whose ab-axis was parallel to the Ni(1 1 1) surface. These results strongly
Preparation of carbonaceous thin films by plasma-assisted
suggest that the B/C/N film is deposited on the Ni(1 1 1) substrate
chemical vapor deposition and their application to energy devices
in a hetero-epitaxial growth mechanism.
Tomokazu
Fukutsuka a, Yoshiaki Matsuo a, Yosohiro Sugie a, b
[TANSO 2007 (No. 230) 334–7.]
Takeshi Abe , Zempachi Ogumi b a
doi:10.1016/j.carbon.2007.11.031
Graduate School of Engineering, University of Hyogo, 2167 Shosha,
Himeji, Hyogo 671-2280, Japan b
Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto
615-8510, Japan Development of carbon micro-coils and their future prospects Xiuqin Chen, Seiji Motojima Faculty of Engineering, Gifu University, Gifu 501-1193, Japan
The preparation of carbonaceous thin films by plasmaassisted chemical vapor deposition is summarized. The thin films were composed of sp2-type carbon and the interlayer spacing (d002) evaluated from X-ray diffraction patterns and the full width
Carbon micro-coils (CMCs) with 3D-helical/spiral structures
at half maximum of the G band in the Raman spectra showed the
and coil diameters of the order of lms were obtained by the
structure to be turbostratic. The crystallite orientation was
metal-catalyzed pyrolysis of acetylene at 700–800 °C. In this
dependent on the applied rf power, based on transmission elec-
review, the preparation process, morphology, microstructure,
tron microscope images. The thin films were used as a negative
properties, and some applications of CMCs are introduced and
electrode of lithium-ion batteries. Based on electrochemical mea-
their future prospects are discussed. The as-grown CMCs have
surements, it was found that the carbonaceous thin film can be
an almost amorphous structure, but were graphitized by high
used as a model electrode. The lithium-ion insertion/extraction
temperature heat treatment with full preservation of the coil
model was discussed. Finally, the film was applied to a coating-
morphology. The CMCs could effectively generate inductive elec-
layer of metal as a bipolar plate material for polymer electrolyte
tromotive force, inductive current and thus Joule heating under
fuel cells. The improvement in the corrosion property (suppres-
the application of microwaves. The CMC/elastic polymer compos-
sion of metal dissolution) of carbon steel by the carbon-coating
ite elements showed high tactile/proximity sensing properties
was provided by the electroless Ni plating on the carbon steel
comparable to that of human skin. CMCs are a possible candidate
prior to the carbon-coating.
CARBON
4 6 (2 0 0 8) 5 6 2–56 5
[TANSO 2007 (No. 230) 352–61.]
565
Glass-like carbon Hisayuki Hamajima
doi:10.1016/j.carbon.2007.11.034
Manufacturing Section Chigasaki Plant Shonan Industrial Complex, Tokai Carbon Co. Ltd., 370 Enzo, Chigasaki, Kanagawa 253-0084, Japan
Surface-modification of anode carbons for lithium-ion battery using chemical vapor deposition/chemical vapor infiltration technique Yoshimi Ohzawa, Tsuyoshi Nakajima
No abstract provided. [TANSO 2007 (No. 230) 369–72.] doi:10.1016/j.carbon.2007.11.036
Department of Applied Chemistry, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-cho, Toyota, Aichi 470-0392, Japan Recently, surface-modification by coating with pyrolytic carbon (pyrocarbon) using chemical vapor deposition (CVD) has been applied to graphite-based anodes of the lithium-ion secondary
A technical guideline for preparing alkali metal-graphite intercalation compounds – Vapor phase and solid phase reactions Noboru Akuzawa a, Rika Matsumoto b
battery (LIB) to restrain the decomposition of the propylene car-
a
bonate based solvent. For non-graphitizing carbon coated with a
Hachiouji, Tokyo 193-0997, Japan
thin pyrocarbon film using chemical vapor infiltration (CVI), the
b
irreversible capacity was significantly reduced without a decrease
Atsugi, Kanagawa 243-0213, Japan
Tokyo National College of Technology, 1220-2 Kunugidamachi, Tokyo Polytechnic University, Faculty of Engineering, 1583 Iiyama,
of reversible capacity, reflecting the laminar texture, high crystallinity and low surface area of pyrocarbon. Thus, pyrocarbon-coating by CVD/CVI is effective in improving the electrochemical properties of anode carbons. Recent studies on the synthesis and modification of anode carbons for LIB using CVD, especially CVI, are summarized. [TANSO 2007 (No. 230) 362–8.] doi:10.1016/j.carbon.2007.11.035
No abstract provided. [TANSO 2007 (No. 230) 373–8.] doi:10.1016/j.carbon.2007.11.037
CARBON
4 6 ( 2 0 0 8 ) 5 6 2 –5 6 5
showed that the nanocarbons were dispersed homogeneously and
for electromagnetic wave absorbers, remote heating materials,
that the temperature dependence of the electrical resistivity could
visualization elements of microwaves, tactile/proximity sensor
be controlled by the addition of two types of nanocarbon fillers.
elements, micro-antenna, chiral catalysts, bio-activators or bio-
The optimum PTC properties were observed for the samples with
deactivators, energy converters, etc.
a mixture of VGCFs and SCNTs at 30 wt% of total nanocarbons. [TANSO 2007 (No. 230) 338–44.]
[TANSO 2007 (No. 230) 329–33.]
doi:10.1016/j.carbon.2007.11.032
doi:10.1016/j.carbon.2007.11.030
Preparation of thin films of graphite-like B/C/N materials on Ni(1 1 1) and HOPG substrates
Carbon deposition in nanospaces through CVD Hirotomo Nishihara, Hironori Orikasa, Takashi Kyotani
Shinya Kuroda a, Yusuke Nakagawa a, Masayuki Kawaguchi a,b
Institute for Multidisciplinary Research for Advanced Materials, Tohoku
a
University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
Graduate School of Engineering, Osaka Electro-Communication Uni-
versity, 18-8 Hatsu-cho, Neyagawa, Osaka 572-8530, Japan b
Academic Frontier Promotion Center, Osaka Electro-Communica-
tion
University,
18-8
Hatsu-cho,
Neyagawa,
Osaka
572-8530,
Japan Thin films of graphite-like layered materials containing boron, carbon and nitrogen (B/C/N materials) were prepared on substrates of Ni(1 1 1) single crystals and highly oriented pyrolytic graphite (HOPG) by low pressure CVD using acrylonitrile and boron trichloride as starting materials. Electron spectroscopy for chemical analysis (ESCA) and reflective high energy electron diffraction (RHEED) suggest that highly oriented and crystalline thin films of B/C/N were deposited on the Ni(1 1 1) substrate with catalytic ability, while a small amount of B/C/N film was deposited on
It is difficult to achieve uniform carbon deposition in nanospaces such as micropores and mesopores using CVD. However, we have recently demonstrated that, even in molecular-scale and labyrinthine pores like the nanochannels of zeolites, uniform carbon deposition is possible if CVD conditions are carefully selected and optimized. This review shows several examples of carbon deposition in micro- and mesopores and shows key factors that impact the uniform deposition into such nanospaces. [TANSO 2007 (No. 230) 345–51.] doi:10.1016/j.carbon.2007.11.033
a part of the HOPG substrate. Transmission electron microscopy (TEM) indicates the B/C/N thin film had a layered structure whose ab-axis was parallel to the Ni(1 1 1) surface. These results strongly
Preparation of carbonaceous thin films by plasma-assisted
suggest that the B/C/N film is deposited on the Ni(1 1 1) substrate
chemical vapor deposition and their application to energy devices
in a hetero-epitaxial growth mechanism.
Tomokazu
Fukutsuka a, Yoshiaki Matsuo a, Yosohiro Sugie a, b
[TANSO 2007 (No. 230) 334–7.]
Takeshi Abe , Zempachi Ogumi b a
doi:10.1016/j.carbon.2007.11.031
Graduate School of Engineering, University of Hyogo, 2167 Shosha,
Himeji, Hyogo 671-2280, Japan b
Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto
615-8510, Japan Development of carbon micro-coils and their future prospects Xiuqin Chen, Seiji Motojima Faculty of Engineering, Gifu University, Gifu 501-1193, Japan
The preparation of carbonaceous thin films by plasmaassisted chemical vapor deposition is summarized. The thin films were composed of sp2-type carbon and the interlayer spacing (d002) evaluated from X-ray diffraction patterns and the full width
Carbon micro-coils (CMCs) with 3D-helical/spiral structures
at half maximum of the G band in the Raman spectra showed the
and coil diameters of the order of lms were obtained by the
structure to be turbostratic. The crystallite orientation was
metal-catalyzed pyrolysis of acetylene at 700–800 °C. In this
dependent on the applied rf power, based on transmission elec-
review, the preparation process, morphology, microstructure,
tron microscope images. The thin films were used as a negative
properties, and some applications of CMCs are introduced and
electrode of lithium-ion batteries. Based on electrochemical mea-
their future prospects are discussed. The as-grown CMCs have
surements, it was found that the carbonaceous thin film can be
an almost amorphous structure, but were graphitized by high
used as a model electrode. The lithium-ion insertion/extraction
temperature heat treatment with full preservation of the coil
model was discussed. Finally, the film was applied to a coating-
morphology. The CMCs could effectively generate inductive elec-
layer of metal as a bipolar plate material for polymer electrolyte
tromotive force, inductive current and thus Joule heating under
fuel cells. The improvement in the corrosion property (suppres-
the application of microwaves. The CMC/elastic polymer compos-
sion of metal dissolution) of carbon steel by the carbon-coating
ite elements showed high tactile/proximity sensing properties
was provided by the electroless Ni plating on the carbon steel
comparable to that of human skin. CMCs are a possible candidate
prior to the carbon-coating.
CARBON
4 6 (2 0 0 8) 5 6 2–56 5
[TANSO 2007 (No. 230) 352–61.]
565
Glass-like carbon Hisayuki Hamajima
doi:10.1016/j.carbon.2007.11.034
Manufacturing Section Chigasaki Plant Shonan Industrial Complex, Tokai Carbon Co. Ltd., 370 Enzo, Chigasaki, Kanagawa 253-0084, Japan
Surface-modification of anode carbons for lithium-ion battery using chemical vapor deposition/chemical vapor infiltration technique Yoshimi Ohzawa, Tsuyoshi Nakajima
No abstract provided. [TANSO 2007 (No. 230) 369–72.] doi:10.1016/j.carbon.2007.11.036
Department of Applied Chemistry, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-cho, Toyota, Aichi 470-0392, Japan Recently, surface-modification by coating with pyrolytic carbon (pyrocarbon) using chemical vapor deposition (CVD) has been applied to graphite-based anodes of the lithium-ion secondary
A technical guideline for preparing alkali metal-graphite intercalation compounds – Vapor phase and solid phase reactions Noboru Akuzawa a, Rika Matsumoto b
battery (LIB) to restrain the decomposition of the propylene car-
a
bonate based solvent. For non-graphitizing carbon coated with a
Hachiouji, Tokyo 193-0997, Japan
thin pyrocarbon film using chemical vapor infiltration (CVI), the
b
irreversible capacity was significantly reduced without a decrease
Atsugi, Kanagawa 243-0213, Japan
Tokyo National College of Technology, 1220-2 Kunugidamachi, Tokyo Polytechnic University, Faculty of Engineering, 1583 Iiyama,
of reversible capacity, reflecting the laminar texture, high crystallinity and low surface area of pyrocarbon. Thus, pyrocarbon-coating by CVD/CVI is effective in improving the electrochemical properties of anode carbons. Recent studies on the synthesis and modification of anode carbons for LIB using CVD, especially CVI, are summarized. [TANSO 2007 (No. 230) 362–8.] doi:10.1016/j.carbon.2007.11.035
No abstract provided. [TANSO 2007 (No. 230) 373–8.] doi:10.1016/j.carbon.2007.11.037