نتایج جستجو برای: cnts

تعداد نتایج: 3625  

2014
Adnan Maqbool F Ahmad Khalid M Asif Hussain

In this investigation copper coated carbon nanotubes (CNTs) were prepared to enhance the interfacial bonding between CNTs and aluminum matrix by the molecular-level mixing process. In optimized plating bath of (1:1) by wt. CNT with Cu, thickness of coated CNTs is reduced to 100 nm to promote uniform distribution of Cu nanoparticle on the surface of pretreated CNTs. The mixing of CNTs was accomp...

2017
Shih-Yun Liao Ya-Chu Yang Sheng-Hsin Huang Jon-Yiew Gan

Pt@TiO2@CNTs hierarchical structures were prepared by first functionalizing carbon nanotubes (CNTs) with nitric acid at 140 °C. Coating of TiO2 particles on the CNTs at 300 °C was then conducted by atomic layer deposition (ALD). After the TiO2@CNTs structure was fabricated, Pt particles were deposited on the TiO2 surface as co-catalyst by plasma-enhanced ALD. The saturated deposition rates of T...

2006
T. X. Li

We have conducted an experimental study to investigate the synthesis of multi-walled carbon nanotubes (CNTs) in counterflow methane–air diffusion flames, with emphasis on effects of catalyst, temperature, and the air-side strain rate of the flow on CNTs growth. The counterflow flame was formed by fuel (CH4 or CH4 + N2) and air streams impinging on each other. Two types of substrates were used t...

Journal: :Nanoscale 2013
Sul Ki Park Qasim Mahmood Ho Seok Park

The covalent functionalization of carbon nanotubes (CNTs) is a basic but important chemistry that can modify their physicochemical properties, resolve their poor dispersion capability, and improve their capacitance to enable their use as high-energy supercapacitors. However, the relationship between functional groups on the CNT surface and their capacitive characteristics has not yet been explo...

2016
Qinghua Yi Hao Wang Shan Cong Yingjie Cao Yun Wang Yinghui Sun Yanhui Lou Jie Zhao Jiang Wu Guifu Zou

Due to the good photocatalytic activity, the TiO2@CNTs thin film is highly desirable to apply to the self-cleaning glass for green intelligent building. Here, the TiO2@CNTs thin film has been successfully achieved by polymer-assisted approach of an aqueous chemical solution method. The polymer, polyethylenimine, aims to combine the Ti4+ with CNTs for film formation of TiO2@CNTs. The resultant t...

2015
Silvia Lorena Montes-Fonseca Blanca Sánchez-Ramírez Antonia Luna-Velasco Carlos Arzate-Quintana Macrina Beatriz Silva-Cazares Carmen González Horta Erasmo Orrantia-Borunda

Carbon nanotubes (CNTs) are used as carriers in medicine due to their ability to be functionalized with chemical substances. However, cytotoxicity analysis is required prior to use for in vivo models. The aim of this study was to evaluate the cytotoxic effect of CNTs functionalized with a 46 kDa surface protein from Entamoeba histolytica (P46-CNTs) on J774A macrophages. With this purpose, CNTs ...

Journal: :Polymers & Polymer Composites 2022

This study presents functionalized carbon nanotubes (CNTs) decorated with barium titanate (BT) (denoted as BT@CNTs) via hydrothermal and self-assembly methods to improve dispersion in polypropylene (PP) matrix enhanced thermal, mechanical, thermomechanical properties. The CNTs, BT, BT@CNTs the addition of maleic anhydride (PPMA) compatibilizer were used fabrication PP based nanocomposites for t...

Journal: :iranian journal of pharmaceutical research 0
xiahui peng department of bioengineering and environmental science, changsha university, changsha 410003, china. qiang zhuang school of chemistry and chemical engineering, central south university, changsha 410083, china. dongming peng school of pharmacy, hunan university of chinese medicine, changsha 410208, china. qiuli dong school of chemistry and chemical engineering, central south university, changsha 410083, china. lini tan school of chemistry and chemical engineering, central south university, changsha 410083, china. feipeng jiao school of chemistry and chemical engineering, central south university, changsha 410083, china.

in this paper, carbon nanotubes (cnts) were added into chitosan (cs) hydrogels in the form of chitosan modified cnts (cs-cnts) composites to prepare carbon nanotubes hydrogels (cnts-gel). the products, named cs-mwcnts, were characterized by scanning electron microscope (sem) and fourier transform infrared (ftir) spectroscopy. swelling properties and effect of ph on controlled release performanc...

2010
Himani Sharma A. K. Shukla V. D. Vankar

The growth behavior and enhanced field emission properties of multiwalled carbon nanotubes were investigated using Ti as an underlayer and over layer. Ti of 10 nm thickness was deposited underneath Fe catalyst and their interaction behavior was observed for growth of carbon nanotubes. It was observed that underlayer deposition of Ti improves the growth of CNTs by acting as a barrier. In the oth...

2016
Hua Jin Songhe Meng Weihua Xie Chenghai Xu Jiahong Niu

ZrB₂-based nanocomposites with and without carbon nanotubes (CNTs) as reinforcement were prepared at 1600 °C by spark plasma sintering. The effects of CNTs on the microstructure and mechanical properties of nano-ZrB₂ matrix composites were studied. The results indicated that adding CNTs can inhibit the abnormal grain growth of ZrB₂ grains and improve the fracture toughness of the composites. Th...

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