نتایج جستجو برای: Sulfonate Modified CNTs

تعداد نتایج: 259480  

A novel Nafion®-based nanocomposite membrane was synthesized to be applied as direct methanol fuel cells (DMFCs). Carbon nanotubes (CNTs) were coated with a layer of silica and then reacted by chlorosulfonic acid to produce sulfonate-functionalized silicon dioxide coated carbon nanotubes (CNT@SiO2-SO3H). The functionalized CNTs were then introduced to Nafion®, and subsequently, methanol permeab...

2012
Baoguo Han Zhengxian Yang Xianming Shi

This paper preliminarily investigates the general transport properties (i.e., water sorptivity, water permeability, and gas permeability) of carbon-nanotube/cement composites. Carboxyl multi-walled carbon nanotubes (MWNTs) are dispersed into cement mortar to fabricate the carbon nanotubes (CNTs) reinforced cement-based composites by applying ultrasonic energy in combination with the use of surf...

Journal: :biomacromolecular journal 0
sharareh sajjadi roudehen branch, islamic azad university, roudehen, iran hedayatollah ghourchian university of tehran, ibb parvaneh rahimi university of tehran

choline oxidase (chox) was chosen as a model enzyme for evaluating the performance of cnts’ functional groups for development of enzyme electrodes. cnts were functionalized with carboxylic acid, amine or amide groups. carboxylic acid, amine and amide functionalized cnts were obtained by acid treatment, ethylenediamine or tetraethylenepentamine chemically modification and ammonia plasma treatmen...

2010
G Venkata Ramana Balaji Padya R Naresh Kumar

Carbon nanotubes (CNTs ) are considered to be one of the novel reinforcement for developing advanced nanocomposites due to their outstanding thermo-mechanical properties. Multi-walled carbon nanotubes (MWCNTs ) are developed by arc discharge method. To enhance the dispersion of CNTs in polymer matrix, CNTs are modified with chemical treatment and processed by ultrasonication process. Surface ch...

Journal: :Materials Science and Engineering: C 2021

Biodegradable strain sensors able to undergo controlled degradation following implantation have recently received significant interest as novel approaches detect pathological tissue swelling or non-physiological stresses. In this study, the physicomechanical, electrochemical and active pressure sensing behavior of an electrically conductive biodegradable poly(glycerol sebacate urethane) (PGSU) ...

2005
Takashi Shimada Yuhei Miyauchi Toshiki Sugai Hisanori Shinohara Shigeo Maruyama

Submitted to the NANOTUBE'05 Conference: Photoluminescence from SWNTs and DWNTs dispersed in saccharide solution Takashi Shimada1 , Yuhei Miyauchi1 , Toshiki Sugai2,3 , Hisanori Shinohara2,3, and Shigeo Maruyama1 1The University of Tokyo 2Nagoya University 3CREST, JST Contact e-mail: [email protected] Photoluminescence (PL) spectroscopy is a powerful tool to investigate the chirali...

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...

2018
Feng Li Jinrong Liang Wenxi Zhu Hua Song Keliang Wang Cuiqin Li

In-situ liquid-phase hydrogenation of m-chloronitrobenzene (m-CNB) based on aqueous-phase reforming (APR) of ethanol and catalytic hydrogenation was carried out over Fe-modified Pt/carbon nanotubes (CNTs) catalysts. The effects of Pt loading over CNTs and Fe modification on the catalytic performance of Pt/CNTs catalysts were studied. In-tube loading of Pt particles, compared with out-tube loadi...

2017
Longsheng Lu Linsheng Liang Kwok Siong Teh Yingxi Xie Zhenping Wan Yong Tang

Carbon fiber microelectrode (CFME) has been extensively applied in the biosensor and chemical sensor domains. In order to improve the electrochemical activity and sensitivity of the CFME, a new CFME modified with carbon nanotubes (CNTs), denoted as CNTs/CFME, was fabricated and investigated. First, carbon fiber (CF) monofilaments grafted with CNTs (simplified as CNTs/CFs) were fabricated in two...

Journal: :Physical chemistry chemical physics : PCCP 2013
Jihun Kim Kyung-Hwa Yoo

Glucose/O(2) biofuel cells (BFCs) with an improved power density and stability were developed, using glucose oxidase (GOD) nanotubes with polypyrrole (PPy)-carbon nanotubes (CNTs)-GOD layers deposited on their surface as an anode and a PPy-laccase-2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonate) diammonium salt (ABTS) film type cathode. The GOD nanotubes were fabricated within the nanopores o...

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