نتایج جستجو برای: mwcnts cooh paste electrode

تعداد نتایج: 79673  

2017
Xiuping Wang Zilin Zhou Fangfang Chen

The addition of surface functional groups to multi-walled carbon nanotubes (MWCNTs) expands their application in engineering, materials, and life science. In the study, we explored the antifungal activities of MWCNTs with different surface groups against an important plant pathogenic fungi Fusarium graminearum. All of the OH-, COOH-, and NH₂-modified MWCNTs showed enhanced inhibition in spore e...

Journal: :Case Studies in Thermal Engineering 2022

In this study, the thermal properties of operating fluid by replacing with better and lower water loss in a cross-flow cooling tower (CFWCT) investigated. For purpose, MWCNTs/H2O, MWCNTs-COOH/H2O, MWCNTs-OH/H2O nanofluids were used instead water, results compared. The visual method dynamic light scattering (DLS) to guarantee stability determine size distribution nanoparticles nanofluid. influen...

Rapid and facile preparation of the cheap modified electrode materials is an important parameter in development of the efficient electrochemical sensor for industrial scale production and mass-market usage. In the present work, the carbon paste electrode modified with multi-walled carbon nanotubes (MWCNTs) was prepared for sensitive determination of lead (Pb) ion in the presence of bismuth (Bi)...

Journal: :Nanotechnology 2011
A R Inigo S J Henley S R P Silva

The hole transport properties of poly(2-methoxy, 5-(2'-ethyl-hexoxy)-p-phenylene vinylene) (MEH-PPV) blended with acid oxidized multiwall carbon nanotubes (COOH-MWCNTs) were investigated in a diode configuration using the time-of-flight (TOF) photocurrent method. While the room temperature hole mobility in pure MEH-PPV films was non-dispersive with positive field dependent mobility, MEH-PPV:COO...

Journal: :Talanta 2013
Thiago M B F Oliveira M Fátima Barroso Simone Morais Pedro de Lima-Neto Adriana N Correia Maria B P P Oliveira Cristina Delerue-Matos

This study focused on the development of a sensitive enzymatic biosensor for the determination of pirimicarb pesticide based on the immobilization of laccase on composite carbon paste electrodes. Multi-walled carbon nanotubes (MWCNTs) paste electrode modified by dispersion of laccase (3%, w/w) within the optimum composite matrix (60:40%, w/w, MWCNTs and paraffin binder) showed the best performa...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2010
Tatsuo Noda Tadao Ukai Toshio Yao

We have developed a simple fabrication method of a highly sensitive direct electron transfer-type electrochemical biosensor for hydrogen peroxide by use of cup-stacked carbon nanotubes (CSCNTs). The CSCNTs, formed by stacking of cup-shaped carbon units, has larger internal space and more hydrophilic edges, thanks to the presence of functional groups containing oxygen (e.g., -COOH, -OH), than mu...

Journal: :Environmental Engineering Research 2022

This study contributes to the preliminary development of active food packaging materials by using bio-based polymers under ultrasonic waves. For this alginate (Algi) polymer was reinforced with functionalized multiwalled carbon nanotubes (COOH-MWCNTs) dispersed in surfactants form A-type films. Similarly, a B-type films, Algi blended polyvinyl alcohol (PVA) presence COOH-MWCNTs. The synthesized...

Rapid and facile preparation of the cheap modified electrode materials is an important parameter in development of the efficient electrochemical sensor for industrial scale production and mass-market usage. In the present work, the carbon paste electrode modified with multi-walled carbon nanotubes (MWCNTs) was prepared for sensitive determination of lead (Pb) ion in the presence of bismuth (Bi)...

Journal: :Biosensors & bioelectronics 2009
Masato Tominaga Shinya Nomura Isao Taniguchi

Multi-walled carbon nanotubes (MWCNTs) were synthesized on platinum plate electrodes by the chemical vapor deposition (CVD) method. From the results of X-ray photoelectron spectroscopy and voltammetric investigation, the iron nanoparticles used as a catalyst for the MWCNT synthesis were enclosed with MWCNTs. The MWCNTs synthesized on the Pt plate (MWCNTs/Pt) electrode were immediately immersed ...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2010
Baocheng Yang Fei Wang Sujuan Guo Baoxian Ye

A multi-wall carbon nanotubes (MWCNTs) composite with Nafion was modified on a glass carbon electrode. The modified electrode was then used as a voltammetric sensor in detecting 2,4,6-triaminopyrimidine (TAP). The surface morphology of the Nafion/MWCNTs composite film was characterized by atomic force microscopy (AFM), and the electrochemical behavior of TAP at this sensor was investigated in d...

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