نتایج جستجو برای: cnt growth rate

تعداد نتایج: 1693722  

Journal: :international journal of advanced design and manufacturing technology 0
farshid aghadavoudi phd studendent, shahrekord university hossein golestanian* yaghoub tadi beni

although carbon nanotubes (cnt) have been employed as reinforcements in nanocomposites, presence of nano scale defects such as stone-wales and vacancy defects in carbon nanotubes (cnt) weakens the mechanical properties of these materials. in this paper the effects of defects in cnts on nanocomposite elastic behavior are investigated using molecular dynamics. stiffness matrices of cnt and nanoco...

Journal: :Japanese Journal of Applied Physics 2022

Abstract Electrical and thermal circuit analyses on a random stick network were combined to develop the simulation method calculate thermoelectric response of carbon nanotube (CNT) films. The experimental results successfully reproduced with respect gate-voltage dependence both electrical conductivity Seebeck coefficient CNT-film field effect transistors for various mixing ratios semiconducting...

Journal: :CFD Letters 2021

Tight control of the carbon nanotube (CNT) synthesis process in flames remains a challenge due to highly non-uniform gradient flame thermochemical properties. The present study aims establish baseline model for flame-enhanced chemical vapor deposition (FECVD) CNT and analyze growth region at varying furnace conditions. numerical comprises computational fluid dynamics (CFD) simulation that is co...

2017
Youngtak Cho Narae Shin Daesan Kim Jae Yeol Park Seunghun Hong

This paper provides a concise review on the recent development of nanoscale hybrid systems based on carbon nanotubes (CNTs) for biological sensing and control. CNT-based hybrid systems have been intensively studied for versatile applications of biological interfaces such as sensing, cell therapy and tissue regeneration. Recent advances in nanobiotechnology not only enable the fabrication of hig...

Journal: :Applied sciences 2023

Carbon nanotube (CNT)-based electrodes in flexible supercapacitors have received significant attention recent years. fiber fabrics (CNT-FF) emerged as promising materials due to their high surface area, excellent conductivity, and mechanical strength. Researchers attempted improve the energy density rate performance of CNT-FF supercapacitor through various strategies, such functionalization wit...

2015
D. Deepa V. Nehru kumar V. Chidambaranathan

Composite Nanofiltration membranes were fabricated by incorporating Carbon Nanotubes (CNT) and Polyvinylidene Fluoride (PVDF) membranes. A suspension was prepared by dispersing CNT (30 minutes of sonication) in Dimethyl Sulfoxide (DMSO) solvent for 0.5 mg/ml. This suspension after vacuum filtration dispersed over PVDF membrane of pore size 0.22μm. Excess DMSO was removed by washing using Ethano...

Journal: :Nanoscale 2013
Xia Liu Weibang Lu Orlando M Ayala Lian-Ping Wang Anette M Karlsson Qingsheng Yang Tsu-Wei Chou

A comprehensive investigation of the mechanical behavior and microstructural evolution of carbon nanotube (CNT) continuous fibers under twisting and tension is conducted using coarse-grained molecular dynamics simulations. The tensile strength of CNT fibers with random CNT stacking is found to be higher than that of fibers with regular CNT stacking. The factor dominating the mechanical response...

Journal: :physical chemistry research 0
samira peymani ferdowsi university of mashhad mohammad izadyar ferdowsi university of mashhad ali nakhaeipour ferdowsi university of mashhad

in this study, kinetics and mechanism of the sulfur dioxide adsorption on the single-walled carbon nanotubes (cnt) are investigated. three single-walled carbon nanotubes, including the armchair (6,6), chiral (6,5) and zigzag (6,0) cnts were chosen as the models and the different orientations of so2 molecule relative to the cnt axis were considered. the b3lyp functional within the 6-31g(d) basis...

2016
Shizue Masuki Atsumi Morita Yoshi-ichiro Kamijo Shigeki Ikegawa Yufuko Kataoka Yu Ogawa Eri Sumiyoshi Kiwamu Takahashi Tohru Tanaka Motowo Nakajima Hiroshi Nose

A reduction in exercise efficiency with aging limits daily living activities. We examined whether 5-aminolevulinic acid (ALA) with sodium ferrous citrate (SFC) increased exercise efficiency and voluntary achievement of interval walking training (IWT) in older women. Ten women [65 ± 3(SD) yr] who had performed IWT for >12 mo and were currently performing IWT participated in this study. The study...

Journal: :Nano letters 2008
Gilbert D Nessim A John Hart Jin S Kim Donatello Acquaviva Jihun Oh Caitlin D Morgan Matteo Seita Jeffrey S Leib Carl V Thompson

By controlling the timing and duration of hydrogen exposure in a fixed thermal process, we tuned the diameters of carbon nanotubes (CNTs) within a vertically aligned film by a factor of 2, and tuned the areal densities by an order of magnitude. The CNT structure is correlated with the catalyst morphology, suggesting that while chemical reduction of the catalyst layer is required for growth, pro...

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