Search Results 1-20 of 5737

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Optimal Thermoelectric Power Factor of Narrow-Gap Semiconducting Carbon Nanotubes with Randomly Substituted Impurities

Matsubara Manaho , Sasaoka Kenji , Yamamoto Takahiro , Fukuyama Hidetoshi

Journal of the Physical Society of Japan 90(4), 044702-044702, 2021-04-15

DOI
2

Modulation of intertube band dispersion relation of carbon nanotube bundles by symmetry and intertube wave function coupling

岡田晋 , 丸山実那 , Susumu OKADA , Yanlin GAO , Mina MARUYAMA

… Based on density functional theory with a local density approximation and the simple tight-binding approximation, we investigated an electronic structure of carbon nanotube bundles in terms of mutual nanotube arrangement. … The tight-binding calculation and wave function analysis revealed that this orientation dependence arises from the intertube wave function coupling whether a node exists between nanotubes. …

Japanese Journal of Applied Physics (60), 025002-025002, 2021-01-26

IR
3

Application of Carbon Nanotube Actuator for SPS [in Japanese]

SEKIYA Naoki , NAKAMURA Takaya , YAMAGAMI Tatsuya , ARAI Kazuyoshi , TANAKA Koji

　太陽発電衛星（SPS）は，宇宙空間で太陽光発電により発電を行い，マイクロ波ビームにより地上へエネルギーを送ることを目的とした現在構想段階の衛星である．SPSの実現に向けた課題の1つとして，SPSのパネル表裏面の温度差による熱変形があり，パネル間の平坦度維持が求められる．上記の課題に対して，我々はカーボンナノチューブアクチュエータ（CNA）によるパネル間の平坦度の補正を検討してい …

Space Solar Power Systems 6(0), 47-50, 2021

J-STAGE
4

Basic Study of Carbon Nanotube Actuator for SPS [in Japanese]

SEKIYA Naoki , NAKAMURA Takaya , YAMAGAMI Tatsuya , ARAI Kazuyoshi , TANAKA Koji

　太陽発電衛星（SPS）は，宇宙空間で太陽光発電により発電を行い，マイクロ波ビームにより地上へエネルギーを送ることを目的とした現在構想段階の衛星である．SPSの実現に向けた課題の1つとして，SPSのパネル表裏面の温度差による熱変形があり，パネル間の平坦度維持が求められる．上記の課題に対して，我々はカーボンナノチューブアクチュエータ（CNA）によるパネル間の平坦度の補正を検討してい …

Space Solar Power Systems 6(0), 5-8, 2021

J-STAGE
5

Artificial Cathode-Electrolyte Interphases on Ni-Rich LiNi0.8Co0.1Mn0.1O2 by Carbon Nanotubes Modified LiF for Enhanced Cycleability

QIU Ruoyu , WU Zhuangchun

… Since the conductivity of lithium fluoride will reduce the electrode's electron mobility, 1 wt% multi-wall carbon nanotubes were added to mitigate this issue. … Scanning electron microscope and energy disperse spectroscopy represent that the lithium fluoride and multi-wall carbon nanotubes were both evenly dispersed throughout the electrode. …

Electrochemistry, 2021

J-STAGE
6

Molecular Functionalization of Carbon Nanotubes towards Near Infrared Photoluminescent Nanomaterials

Shiraki Tomohiro

… Local chemical functionalization of single-walled carbon nanotubes (SWCNTs) has been developed as a means of defect doping to enhance the near infrared photoluminescence properties of the materials. …

Chemistry Letters 50(3), 397-404, 2021

J-STAGE
7

Cytochrome c/multi-walled carbon nanotubes modified glassy carbon electrode for the detection of streptomycin in pharmaceutical samples

Chokkareddy Rajasekhar , Redhi Gan G , Thangavel Karthick

Analytical Sciences, 2021

J-STAGE
8

Perspective of C60 and Nanotube Research [in Japanese]

Saito Riichiro

Materia Japan 60(3), 147-150, 2021

J-STAGE
9

Lung toxicity of a vapor-grown carbon fiber in comparison with a multi-walled carbon nanotube in F344 rats

Numano Takamasa , Sugiyama Taiki , Kawabe Mayumi , Mera Yukinori , Ogawa Ryoji , Nishioka Ayako , Fukui Hiroko , Sato Kei , Hagiwara Yuji

… Carbon fibers have excellent physicochemical and electrical properties. … Vapor-grown carbon fibers are a type of carbon fibers that have a multi-walled carbon tube structure with a high aspect ratio. … The representative vapor-grown carbon fiber, VGCFTM-H, is extremely strong and stable and has superior thermal and electrical conductivity. …

Journal of Toxicologic Pathology 34(1), 57-71, 2021

J-STAGE
10

Anti-Friction and Anti-Wear Surfactant-Assisted Nano-Carbons Stable Formulations for Easy Industrialization

Sarno Maria , Cirillo Claudia , Senatore Adolfo , Scarpa Davide , Abdalglil Mustafa Waleed Ahmed

… Herein, with the aim of enhancing tribological properties of lubricating oils, by adopting stable nano-additives and without substantially modifying oil rheological properties, carbon nanotubes and graphene-based nano-carbons were synthesized through simple and scalable processes. …

Tribology Online 16(1), 1-15, 2021

J-STAGE
11

Unzipping Process of Wet Carbon Nanotubes Adsorbed on Cu(111) in Ultra-High Vacuum : an STM/STS study [in Japanese]

GOTO Yuto , ANDO Saeko , KAKUGAWA Keiju , TAKAHARA Shigeru , YAMADA Toyo Kazu

… Isolated single-walled carbon nanotubes (SWNTs) adsorbed on an atomically flat and clean Cu(111) surface were studied by means of ultra-high vacuum (UHV) scanning tunneling microscopy and spectroscopy (STM / STS) at 300 K. …

Vacuum and Surface Science 64(1), 40-46, 2021

J-STAGE
12

Hybrid Carbon Film Electrodes for Electroanalysis

NIWA Osamu , OHTA Saki , TAKAHASHI Shota , ZHANG Zixin , KAMATA Tomoyuki , KATO Dai , SHIBA Shunsuke

… Carbon materials have been widely used for electrochemical analysis and include carbon nanotubes, graphene, and boron-doped diamond electrodes in addition to conventional carbon electrodes, such as those made of glassy carbon and graphite. …

Analytical Sciences 37(1), 37-47, 2021

J-STAGE
13

Superior Durability of Dissimilar Material Joint between Steel and Thermoplastic Resin with Roughened Electrodeposited Nickel Interlayer

Arai Susumu , Sugawara Ryo , Shimizu Masahiro , Inoue Junki , Horita Masaomi , Nagaoka Takashi , Itabashi Masami

… The roughened nickel film is fabricated by electrodeposition using carbon nanotubes (CNTs) as the roughening agent and a polyphenylenesulfide (PPS) resin as the thermoplastic resin. …

ADVANCED ENGINEERING MATERIALS 22(12), 2000739, 2020-12

IR
14

Study of Carbon Nanotubes Stability in Different Types of Solvents for Electrospray Deposition Method

Muhammad Razlan Zakaria , Mohd Firdaus Omar , Hazizan Md Akil , Mohd Mustafa Al Bakri Abdullah

… Electrospray deposition (ESD) required a dispersing agent that could form a stable suspension of solution for carbon nanotubes (CNT) deposition on the carbon fiber (CF). …

Evergreen 7(4), 538-543, 2020-12

IR DOI
15

Early detection of leptospirosis using Anti-LipL32 carbon nanotube immunofluorescence probe

Sapna Kannan , Tarique Mohammed , Asiamma Ashaiba , Ravi Kumar Terikere Nagaraj , Shashidhar Vishwanath , Arun Ananthapadmanabha Bhagwath , Prasad Kariate Sudhakara

Journal of bioscience and bioengineering 130(4), 424-430, 2020-10

DOI
16

Covalently bonded polyaniline-reduced graphene oxide/single-walled carbon nanotubes nanocomposites : influence of various dimensional carbon nanostructures on the electrochromic behavior of PANI

Wang Yuancheng , Xiong Shanxin , Wang Xiaoqin , Chu Jia , Zhang Runlan , Gong Ming , Wu Bohua , Qu Mengnan , Li Zhen , Chen Zhenming

Polymer journal 52(7), 783-792, 2020-07
17

Cellular Responses of Human Lymphatic Endothelial Cells to Carbon Nanomaterials

Sano Mahoko , Izumiya Makoto , Haniu Hisao , Ueda Katsuya , Konishi Kosuke , Ishida Haruka , Kuroda Chika , Uemura Takeshi , Aoki Kaoru , Matsuda Yoshikazu , Saito Naoto

… One of the greatest challenges to overcome in the pursuit of the medical application of carbon nanomaterials (CNMs) is safety. … In this study, we evaluated the toxicity of carbon nanohorns (CNHs), which are potential DDSs, using human lymph node endothelial cells that have been reported to accumulate CNMs, as a comparison to fibrous, multi-walled carbon nanotubes (MWCNTs) and particulate carbon black (CB). …

NANOMATERIALS 10(7), 1374, 2020-07

IR
18

Controlling Electronic States of Few-walled Carbon Nanotube Yarn via Joule-annealing and p-type Doping Towards Large Thermoelectric Power Factor

Myint May Thu Zar , Nishikawa Takeshi , Omoto Kazuki , Inoue Hirotaka , Yamashita Yoshifumi , Kyaw Aung Ko Ko , Hayashi Yasuhiko

… Carbon nanotube (CNT) yarn is one of the potential TE materials owing to its narrow band-gap energy, high charge carrier mobility, and excellent mechanical property, which is conducive for flexible and wearable devices. … Herein, we propose a way to improve the power factor of CNT yarns fabricated from few-walled carbon nanotubes (FWCNTs) by two-step method; …

Scientific Reports 10(1), 7307, 2020-04-29

IR
19

Applications of Carbon Nanotubes in Bone Regenerative Medicine

Tanaka Manabu , Aoki Kaoru , Haniu Hisao , Kamanaka Takayuki , Takizawa Takashi , Sobajima Atsushi , Yoshida Kazushige , Okamoto Masanori , Kato Hiroyuki , Saito Naoto

… Carbon nanotubes (CNTs) are fibrous nanoparticles with a nano-size diameter and have excellent strength and chemical stability. …

NANOMATERIALS 10(4), 659, 2020-04

IR
20

Systematic Investigations of Annealing and Functionalization of Carbon Nanotube Yarns

Scholz Maik , Hayashi Yasuhiko , Eckert Victoria , Khavrus Vyacheslav , Leonhardt Albrecht , Büchner Bernd , Mertig Michael , Hampel Silke

… Carbon nanotube yarns (CNY) are a novel carbonaceous material and have received a great deal of interest since the beginning of the 21st century. … The electrical conductivity of carbon nanotube yarns can also be influenced by functionalization and annealing. … For annealing, not only is the highly graphitic structure of the carbon nanotubes (CNT) important, but it is also shown to influence the residual amorphous carbon in the structure. …

Molecules 25(5), 1144, 2020-03-04

IR

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