Publications

2011

Role of Subsurface Diffusion and Ostwald Ripening in Catalyst Formation for SWNT Forest Growth
Shunsuke Sakurai, Hidekazu Nishino, Don N. Futaba, Satoshi Yasuda, Takeo Yamada, Alan Maigne, Yutaka Matsuo, Eiichi Nakamura, Motoo Yumura and Kenji Hata
(Journal of the American Chemical Society, accepted)

14. Gas Dwell Time Control for Rapid and Long Lifetime Growth of SWNT Forests
Satoshi Yasuda, Don N. Futaba, Takeo Yamada, Motoo Yumura and Kenji Hata
Nano Letters, 11 (9), 3617-3623 (2011)

13. High-Speed Carbon Nanotubes Actuator Based on Oxidation-Reduction Reaction
Ken Mukai, Kinji Asaka, Kenji Hata, Toribio Fernández Otero, and Hideaki Oike
Chemistry - A European Journal, 17 (39), 10965-10971 (2011)

12. Epoxy Composite Sheets with a Large Interfacial Area from a High Surface Area-Supplying Single-Walled Carbon Nanotube Scaffold Filler
Kazufumi Kobashi, Hidekazu Nishino, Takeo Yamada, Don N. Futaba, Motoo Yumura and Kenji Hata
Carbon, 49 (15), 5090-5098 (2011)

11. Tailoring Temperature Invariant Viscoelasticity of Carbon Nanotube Material
Ming Xu, Don N. Futaba, Motoo Yumura and Kenji Hata
Nano Letters, 11 (8), 3279-3284 (2011)

10. Carbon Nanotubes with Temperature-Invariant Creep and Creep-Recovery from -190 °C to 970 °C
Ming Xu, Don N. Futaba, Motoo Yumura, and Kenji Hata
Advanced Materials, 23 (32), 3686-3691 (2011)

9. Effect of Nanoscale Curvature Sign and Bundle Structure on Supercritical H2 and CH4 Adsorptivity of Single Wall Carbon Nanotube
M. Yamamoto, T. Itoh, H. Sakamoto, T. Fujimori, K. Urita, Y. Hattori, T. Ohba, H. Kagita, H. Kanoh, S. Niimura, K. Hata, K. Takeuchi, M. Endo, F. Rodríguez-Reinoso, K. Kaneko
Adsorption, 17, 643-651 (2011)

8. Growth control of single-walled, double-walled, and triple-walled carbon nanotube forests by a priori electrical resistance measurement of catalyst films
Wei-Hung Chiang, Don N. Futaba, Motoo Yumura and Kenji Hata
Carbon, 49 (13), 4368-4375 (2011)

7. Mechanics and actuation properties of bucky gel-based electroactive polymers
Luca Ceseracciu, Maurizio Biso, Alberto Ansaldo, Don N. Futaba, Kenji Hata, Alberto C. Barone, Davide Ricci
Sensors and Actuators B, 156 (2), 949-953 (2011)

6. Direct electron transfer to hydrogenase for catalytic hydrogen production using a single-walled carbon nanotube forest
Takanori Kihara, Xue-Ying Liu, Chikashi Nakamura, Kang-Min Park, Sung-Woong Han, Dong-Jin Qian, Kazunori Kawasaki, Nikolay A. Zorin, Satoshi Yasuda, Kenji Hata, Tatsuki Wakayama, Jun Miyake
International Journal of Hydrogen Energy, 36 (13), 7523-7529 (2011)

5. A stretchable carbon nanotube strain sensor for human-motion detection
Takeo Yamada, Yuhei Hayamizu, Yuki Yamamoto, Yoshiki Yomogida, Ali Izadi-Najafabadi,Don N. Futaba and Kenji Hata
Nature Nanotechnology, 6 (5), 296-301 (2011)

4. Macroscopic Wall Number Analysis of Single-Walled, Double-Walled, and Few-Walled Carbon Nanotubes by X-ray Diffraction
Don N. Futaba, Takeo Yamada, Kazufumi Kobashi, Motoo Yumura, and Kenji Hata
Journal of the American Chemical Society, 133, 5716-5719 (2011)

3. Self-Regulating Enzyme-Nanotube Ensemble Films and Their Application as Flexible Electrodes for Biofuel Cells
Takeo Miyake, Syuhei Yoshino, Takeo Yamada, Kenji Hata, Matsuhiko Nishizawa
Journal of the American Chemical Society, 133, 5129-5134 (2011)

2. High Power Supercapacitor Electrodes from Single-Walled Carbon Nanohorn/Nanotube Composite
Ali Izadi-Najafabadi, Takeo Yamada, Don N. Futaba, Masako Yudasaka, H. Takagi, Hiroaki Hatori, Sumio Iijima, Kenji Hata
ACS Nano, 5, 811-819 (2011)

1. Cross-linking super-growth carbon nanotubes to boost the performance of bucky gel actuators
Maurizio Biso, Alberto Ansaldo, Don N. Futaba, Kenji Hata and Davide Ricci
Carbon, 49, 2253-2257 (2011)

2010

15. Benchmarking bucky gel actuators: Chemically modified commercial carbon nanotubes versus super-growth carbon nanotubes
Maurizio Biso, Alberto Ansaldo, Don N. Futaba, Kenji Hata, and Davide Ricci
Phys. Status Solidi B 247, No. 11-12, 3055-3058 (2010)

14. Ion Diffusion and Electrochemical Capacitance in Aligned and Packed Single-Walled Carbon Nanotubes
Ali Izadi-Najafabadi, Don N. Futaba, Sumio Iijima and Kenji Hata
Journal of the American Chemical Society, 132 (51), 18017-18019 (2010)

13. Integrated CNTs thin film for MEMS mechanical sensors
Van Thanh Dau, Takeo Yamada, Dzung Viet Dao, Bui Thanh Tung, Kenji Hata and Susumu Sugiyama
Microelectronics Journal, 41, 860-864 (2010)

12. Carbon Nanotubes with Temperature Invariant Viscoelasticity from -196°C to 1000°C
Ming Xu, Don N. Futaba, Takeo Yamada, Motoo Yumura and Kenji Hata
Science, 330 (6009), 1364-1368 (2010) (Japanese page to get full text)

11. Impact of cell-voltage on energy and power performance of supercapacitors with single-walled carbon nanotube electrodes
Ali Izadi-Najafabadi, Takeo Yamada, Don N. Futaba, Hiroaki Hatori, Sumio Iijima, Kenji Hata
Electrochemistry Communications, 12, 1678-1681 (2010)

10. Efficient dispersing and shortening of super-growth carbon nanotubes by ultrasonic treatment with ceramic balls and surfactants
Hui Xu, Hiroya Abe, Makio Naito, Yoshinobu Fukumori, Hideki Ichikawa, Shigehisa Endoh, Kenji Hata
Advanced Powder Technology, 21 (5), 551-555 (2010)

9. Release potential of single-wall carbon nanotubes produced by super-growth method during manufacturing and handling
Isamu Ogura, Hiromu Sakurai, Kohei Mizuno, Masashi Gamo
Journal of Nanoparticle Research, DOI 10.1007/s11051-010-0119-8 (2010)

8. Extracting the Full Potential of Single-Walled Carbon Nanotubes as Durable Supercapacitor Electrodes Operable at 4V with High Power and Energy Density
Ali Izadi-Najafabadi, Satoshi Yasuda, Kazufumi Kobashi, Takeo Yamada, Don N. Futaba, Hiroaki Hatori, Motoo Yumura, Sumio Iijima and Kenji Hata
Advanced Materials, 22 (35), E235-E241 (2010)

7. Outer-Specific Surface Area as a Gauge for Absolute Purity of Single-Walled Carbon Nanotube Forests
Don N. Futaba, Jundai Goto, Takeo Yamada, Satoshi Yasuda, Motoo Yumura, Kenji Hata
Carbon, 48, 4542-4546 (2010)

6. Selective D-2 adsorption enhanced by the quantum sieving effect on entangled single-wall carbon nanotubes
Daisuke Noguchi, Hideki Tanaka, Toshihiko Fujimori, Hirotoshi Kagita, Yoshiyuki Hattori, Hiroaki Honda, Koki Urita, Shigenori Utsumi, Zheng-Ming Wang, Tomonori Ohba, Hirofumi Kanoh, Kenji Hata, Katsumi Kaneko
Journal of Physics-Condensed Matter, 22 (33, Sp. Iss.), 334207 (2010)

5. Hole Opening of Carbon Nanotubes and Their Capacitor Performance
Yasuhiro Yamada, Osamu Kimizuka, Kenji Machida, Shunzo Suematsu, Kenji Tamamitsu, Susumu Saeki, Yoshio Yamada, Noriko Yoshizawa, Osamu Tanaike, Junya Yamashita, Futaba Don, Kenji Hata and Hiroaki Hatori
Energy Fuels, 24, 3373-3377 (2010)

4. Integration of SWNT film into MEMS for a micro-thermoelectric device
Van Thanh Dau, Dzung Viet Dao, Takeo Yamada, Bui Thanh Tung, Kenji Hata and Susumu Sugiyama
Smart Materials and Structures, 19, 075003 (2010)

3. Compact and light supercapacitors from a surface-only solid by opened carbon nanotubes with 2200 m2/g
Tatsuki Hiraoka, Ali Izadi-Najafabadi, Takeo Yamada, Don N. Futaba, Satoshi Yasuda, Osamu Tanaike, Hiroaki Hatori, Motoo Yumura, Sumio Iijima and Kenji Hata
Advanced Functional Materials, 20 (3), 422-428 (2010)

2. Intrinsic Magnetoresistance of Single-Walled Carbon Nanotubes Probed by a Noncontact Method
Yugo Oshima, Taishi Takenobu, Kazuhiro Yanagi, Yasumitsu Miyata, Hiromichi Kataura, Kenji Hata, Yoshihiro Iwasa, and Hiroyuki Nojiri
Physical Review Letters, 104, 016803 (2010)

1. Calibrating the Single-Wall Carbon Nanotube Resonance Raman Intensity by High Resolution Transmission Electron Microscopy for a Spectroscopy-Based Diameter Distribution Determination
Pedro B. C. Pesce, Paulo T. Araujo, Pavel N. Nikolaev, Stephen K. Doorn, Kenji Hata, Riichiro Saito, Mildred S. Dresselhaus, Ado Jorio
Appl. Phys. Lett., 96, 051910 (2010)

2009

14. Improved and Large Area Singled-Walled Carbon Nanotube Forest Growth by Controlling the Gas Flow Direction
Satoshi Yasuda, Don N. Futaba, Takeo Yamada, Junichi Satou, Akiyoshi Shibuya, Hirokazu Takai, Kouhei Arakawa, Motoo Yumura, and Kenji Hata
ACN Nano, 3 (12), 4164-4170 (2009)

13. General Rules Governing the Highly Efficient Growth of Carbon Nanotubes
Don N. Futaba, Jundai Goto, Satoshi Yasuda, Takeo Yamada, Motoo Yumura, and Kenji Hata
Advanced Materials, 21 (47), 4811-4815 (2009)

12. Comparative NEXAFS Examination of Single-wall Carbon Nanotubes Produced by Different Methods
L. G. Bulusheva, A. V. Okotrub, Yu. V. Lavskaya, D. V. Vyalikh, U. Dettlaff-Weglikowska, A. Fonseca, and K. Hata
Phys. Status Solidi B 246, No. 11-12, 2637-2640 (2009)

11. A Background Level of Oxygen-Containing Aromatics for Synthetic Control of Carbon Nanotube Structure
Don N. Futaba, Jundai Goto, Satoshi Yasuda, Takeo Yamada, Motoo Yumura, and Kenji Hata
Journal of the American Chemical Society, 131, 15992–15993 (2009)

10. Observations of Bound Tween80 Surfactant Molecules on Carbon Nanotubes in an Aqueous Solution
Haruhisa Kato, Kohei Mizuno, Ayako Nakamura, Kayori Takahashi, Kenji Hata and Shinichi Kinugasa
Carbon, 47, 3434–3440 (2009)

9. Dual Porosity Single-Walled Carbon Nanotube Material
Don N. Futaba, Koji Miyake, Kazuhiro Murata, Yuhei Hayamizu, Takeo Yamada, Shinya Sasaki, Motoo Yumura, and Kenji Hata
Nano Letters, 9 (9), 3302-3307 (2009)
(Selected to be highlighted in RESEARCH/RESEARCHERS, MRS BULLETIN, VOLUME 34 , NOVEMBER 2009)

8. Stretchable active matrix organic light-emitting diode display using printable elastic conductors
Tsuyoshi Sekitani, Hiroyoshi Nakajima, Hiroki Maeda, Takanori Fukushima, Takuzo Aida, Kenji Hata, Takao Someya
Nature Materials, 8 (6), 494-499 (2009)

7. Thermal Diffusivity of Single-Walled Carbon Nanotube Forest Measured by Laser Flash Method
Megumi Akoshima, Kenji Hata, Don N. Futaba, Kohei Mizuno, Tetsuya Baba, and Motoo Yumura
Japanese Journal of Applied Physics, 48 (5), 05EC07 (2009)

6. Defects generation in single-walled carbon nanotubes induced by soft X-ray illumination
Yutaka Mera, Yoshihisa Harada, Satoshi Arima, Kenji Hata, Shik Shin and Koji Maeda
Chemical Physics Letters, 473 (1-3), 138-141 (2009)

5. Mechanical Properties of Beams from Self-Assembled Closely Packed and Aligned Single-Walled Carbon Nanotubes
Yuhei Hayamizu, Robert C. Davis, Takeo Yamada, Don N. Futaba, Satoshi Yasuda, Motoo Yumura, and Kenji Hata
Physical Review Letters, 102, 175505 (2009)

4. A Black Body Absorber from Vertically Aligned Single Walled Carbon Nanotubes
Kohei Mizuno, Juntaro Ishii, Hideo Kishida, Yuhei Hayamizu, Satoshi Yasuda, Don N. Futaba, Motoo Yumura and Kenji Hata
Proceedings of the National Academy of Sciences, 106 (15), 6044-6047 (2009)

3. Existence and Kinetics of Graphitic Carbonaceous Impurities in Carbon Nanotube Forests to Assess the Absolute Purity
Satoshi Yasuda, Tatsuki Hiraoka, Don N. Futaba, Takeo Yamada, Motoo Yumura, and Kenji Hata
Nano Letters, 9 (2), 769-773 (2009)

2. Exploring Advantages of Diverse Carbon Nanotube Forests with Tailored Structures Synthesized by Super-Growth from Engineered Catalysts
Bin Zhao, Don N. Futaba, Satoshi Yasuda, Megumi Akoshima, Takeo Yamada, Kenji Hata
ACS Nano, 3 (1), 108-114 (2009)

1. Highly Conductive Sheets from Millimeter-Long Single-Walled Carbon Nanotubes and Ionic Liquids: Application to Fast-Moving, Low-Voltage Electromechanical Actuators Operable in Air
Ken Mukai, Kinji Asaka, Takushi Sugino, Kenji Kiyohara, Ichiroh Takeuchi, Naohiro Terasawa, Don N. Futaba, Kenji Hata, Takanori Fukushima, and Takuzo Aida
Advanced Materials, 21, 1582-1585 (2009)

Single- and Double-Walled Carbon Nanotube Synthesis by Super Growth Method
Takeo Yamada and Kenji Hata
Catalysts and Catalysis, 51 (1), 2-7 (2009) (Japanese)

2008

11. SWNT probed by multi-frequency EPR and nonresonant microwave absorption
B. Corzilius, K. -P. Dinse, K. Hata, M. Haluška, V. Skákalová, and S. Roth
Phys. Stat. Sol. (b) 245, No. 10, 2251-2254 (2008)

10. Revealing the Secret of Water-Assisted Carbon Nanotube Synthesis by Microscopic Observation of the Interaction of Water on the Catalysts
Takeo Yamada, Alan Maigne, Masako Yudasaka, Kouhei Mizuno, Don Futaba, Motoo Yumura, Sumio Iijima, Kenji Hata
Nano Letters, 8 (12), 4288-4292 (2008)

9. Electrochemical doping of pure single-walled carbon nanotubes used as supercapacitor electrodes
Osamu Kimizuka, Osamu Tanaike, Junya Yamashita, Tatsuki Hiraoka, Don N. Futaba, Kenji Hata, Kenji Machida, Shunzo Suematsu, Kenji Tamamitsu, Susumu Saeki, Yoshio Yamada, Hiroaki Hatori
Carbon, 1999-2001 (2008)

8. Excitons and exciton-phonon coupling in metallic single-walled carbon nanotubes: Resonance Raman spectroscopy
Stephen K. Doorn, Paulo T. Araujo, Kenji Hata, and Ado Jorio
Phys. Rev. B 78, 165408 (2008)

7. Diagnostics and Growth Control of Single-Walled Carbon Nanotube Forests Using a Telecentric Optical System For in-situ Height Monitoring
Satoshi Yasuda, Don. N. Futaba, Motoo Yumura, Sumio Iijima and Kenji Hata
Appl. Phys. Lett. 93, 143115 (2008)

6. A Rubber-like Stretchable Active Matrix Using Elastic Conductors
T. Sekitani, Y. Noguchi, K. Hata, T. Fukushima, T. Aida ,T. Someya
Science, 321, 1468(2008)

5. Nature of the constant factor in the relation between radial breathing mode frequency and tube diameter for single-wall carbon nanotubes
P. T. Araujo, I. O. Maciel, P. B. C. Pesce, M. A. Pimenta, S. K. Doorn, H. Qian, A. Hartschuh, M. Steiner, L. Grigorian, K. Hata, and A. Jorio
Phys. Rev. B 77, 241403 (2008)

4. Probing the electronic properties of single-walled carbon nanotubes with resonant and non-resonant microwave absorption
Corzilius, B.; Dinse, K. -P.; Hata, K.
Physica E-Low-Dimensional Systems & Nanostructures, 40 (7), 2327-2332 (2008)

3. Semiconductor-enriched single wall carbon nanotube networks applied to field effect transistors
N. Izard, S. Kazaoui, K. Hata, T. Okazaki, T. Saito, S. Iijima, and N. Minami
Appl. Phys. Lett. 92, 243112 (2008)

2. Integrated three-dimensional microelectromechanical devices from processable carbon nanotube wafers
Y. Hayamizu, T. Yamada, K. Mizuno, R. C. Davis, D. N. Futaba, M. Yumura, K. Hata
Nature Nanotechnology. 3, 289-294 (2008)

1. Electron paramagnetic resonance investigation of metalloendofullerene derived carbon nanotube peapods
P. Jakes, A. Gembus, K.-P. Dinse, K. Hata
Journal of Chemical Physics. 128, 052306 (2008)

2007

6. Single-wall carbon nanotubes and peapods investigated by EPR
B. Corzilius, K. P. Dinse, K. Hata
Physical Chemistry Chemical Physics. 9, 6063-6072 (2007)

5. Water-Assisted Highly Efficient Synthesis of Single-Walled Carbon Nanotubes Forests from Colloidal Nanoparticle Catalysts
H. Nishino, S. Yasuda, T. Namai, D. N. Futaba, T. Yamada, M. Yumura, S. Iijima, K. Hata
Journal of Physical Chemistry C. 111, 17961-17965 (2007)

4. Nanoscale Curvature Effect on Ordering of N2 Molecules Adsorbed on Single Wall Carbon Nanotube
T. Ohba, T. Matsumura, K. Hata, M. Yumura, S. Iijima, H. Kanoh, K. Kaneko
Journal of Physical Chemistry C. 111, 15660-15663 (2007)

3. Electron paramagnetic resonance and non-resonant microwave absorption of single wall carbon nanotubes
B. Corzilius, S. Agarwal, K. P. Dinse, K. Hata
Physica Status Solidi B-Basic Solid State Physics. 244, 3890-3895 (2007)

2. Low-temperature anomaly of microwave absorption and ac susceptibility of single-wall carbon nanotubes: Bulk superconductivity and weak ferromagnetism
B. Corzilius, K. P. Dinse, J. van Slageren, K. Hata
Physical Review B. 75, 235416 (2007)

1. Efficiency of C60 incorporation in and release from single-wall carbon nanotubes depending on their diameters
J. Fan, M. Yudasaka, R. Yuge, D.N. Futaba, K. Hata, S. Iijima
Carbon. 45, 722-726 (2007)

Super-Growth Method for Carbon Nanotubes Synthesis
Kenji Hata
Journal of the Surface Science Society of Japan. 28, 104-110 (2007) (Japanese)

2006

6. Shape-engineerable and highly densely packed single-walled carbon nanotubes and their application as super-capacitor electrodes
Don N. Futaba, Kenji Hata, Takeo Yamada, Tatsuki Hiraoka, Yuhei Hayamizu, Yozo Kakudate, Osamu Tanaike, Hiroaki Hatori, Motoo Yumura and Sumio Iijima
Nature Material. 5, 987-994,(2006)

5.Size selective growth of double-walled carbon nanotubes forests from engineered iron catalysts
Takeo Yamada, Tatsunori Namai, Kenji Hata, Don N. Futaba, Kohei Mizuno, Jing Fan, Masako Yudasaka, Motoo Yumura, Sumio Iijima
Nature Nanotechnology. 1, 131-136,(2006)

4. Synthesis of Single- and Double- Walled Carbon Nanotube Forests on Conducting Metal Foils
Tatsuki Hiraoka, Takeo Yamada, Kenji Hata, Don N. Futaba, Hiroyuki Kurachi, Sashirou Uemura, Motoo Yumura, Sumio Iijima
J. Am. Chem. Soc. 128, 13338-13339,(2006)

3. Dispersion and Separation of Small-Diameter Single-Walled Carbon Nanotubes
Maeda, Y.; Kanda, M.; Hashimoto, M.; Hasegawa, T.; Kimura, S.; Lian, Y.; Wakahara, T.; Akasaka, T.; Kazaoui, S.; Minami, N.; Okazaki, T.; Hayamizu, Y.; Hata, K.; Lu, J.; Nagase, S.
J. Am. Chem. Soc. 128, 12239-12242,(2006)

2. EPR characterization of catalyst-free SWNT and N@C60-based peapods Nanotubes
B. Corzilius, A. Gembus, N. Weiden, K.-P. Dinse, and K. Hata
Phys. Stat. Sol. (b) 243, 13, 3273-3276,(2006)

1. 84% Catalyst Activity of Water Assisted Growth, Single Walled Carbon Nanotube Forest Characterization by a Statistical and Macroscopic Approach
Don N. Futaba, Kenji Hata, Tatsunori Namai, Takeo Yamada, Kohei Mizuno, Yuhei Hayamizu, Motoo Yumura and Sumio Iijima
J. Phs. Chem.B. 110, 8035-8038,(2006)

2005

3. Atomic-Resolution Imaging of the Nucleation Points of Single-Walled Carbon Nanotubes
Hongwei Zhu, Kazutomo Suenaga, Ayako Hashimoto, Kouki Urita, Kenji Hata, and Sumio Iijima
Small, 12, 1180-1183,(2005)

2. Kinetics of water-assisted single-walled carbon nanotube synthesis revealed by a time-evolution analysis
Don N. Futaba, Kenji Hata, Takeo Yamada, Kohei Mizuno, Motoo Yumura, and Sumio Iijima
Physical Review Letters. 95, 056104,(2005)

1. Selective Matching of Catalyst Element and Carbon Source in Single-Walled Carbon Nanotube Synthesis on Silicon Substrates
Kohei Mizuno, Kenji Hata, Takeshi Saito, Satoshi Ohshima, Motoo Yumura, and Sumio Iijima
J. Phs. Chem.B, 2632-2637,(2005)

2004

1. Water-assisted highly efficient synthesis of impurity-free single-waited carbon nanotubes
K.Hata, Don N. Futaba, K.Mizuno, T.Namai, M.Yumura, S.Iijima
Science. 306, 1362-1365,(2004)