scholarly journals A Flexible Platform of Electrochemically Functionalized Carbon Nanotubes for NADH Sensors

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 518 ◽  
Author(s):  
Aranzazu Heras ◽  
Fabio Vulcano ◽  
Jesus Garoz-Ruiz ◽  
Nicola Porcelli ◽  
Fabio Terzi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Direct Evidence ◽  
Electrode System ◽  
Electrochemical Process ◽  
Organic Residues ◽  
Flexible Electrode ◽  
Functionalized Carbon Nanotubes ◽  
Solution Interface ◽  
Sensor Platform ◽  
Walled Carbon Nanotubes

A flexible electrode system entirely constituted by single-walled carbon nanotubes (SWCNTs) has been proposed as the sensor platform for β-nicotinamide adenine dinucleotide (NADH) detection. The performance of the device, in terms of potential at which the electrochemical process takes place, significantly improves by electrochemical functionalization of the carbon-based material with a molecule possessing an o-hydroquinone residue, namely caffeic acid. Both the processes of SWCNT functionalization and NADH detection have been studied by combining electrochemical and spectroelectrochemical experiments, in order to achieve direct evidence of the electrode modification by the organic residues and to study the electrocatalytic activity of the resulting material in respect to functional groups present at the electrode/solution interface. Electrochemical measurements performed at the fixed potential of +0.30 V let us envision the possible use of the device as an amperometric sensor for NADH detection. Spectroelectrochemistry also demonstrates the effectiveness of the device in acting as a voltabsorptometric sensor for the detection of this same analyte by exploiting this different transduction mechanism, potentially less prone to the possible presence of interfering species.

A noble gas sensor platform: linear dense assemblies of single-walled carbon nanotubes (LACNTs) in a multi-layered ceramic/metal electrode system (MLES)

2018 ◽  
Vol 6 (5) ◽  
pp. 972-979 ◽  
Author(s):  
Tae-Yeon Hwang ◽  
Yomin Choi ◽  
YoSeb Song ◽  
Nu Si A. Eom ◽  
Seil Kim ◽  
...  
Keyword(s):  
Noble Gas ◽  
Cost Effective ◽  
Hydrogen Sensor ◽  
Metal Electrode ◽  
Electrode System ◽  
Sensor Platform ◽  
Walled Carbon Nanotubes ◽  
Effective Hydrogen ◽  
Layered Ceramic ◽  
Pt Catalyzed

Monodispersed nano Pt catalyzed linear dense assembly of SWCNTs bundles on a noble multi-layered electrode system for cost-effective hydrogen sensor.

scholarly journals Imidazolium functionalized carbon nanotubes for the synthesis of cyclic carbonates: reducing the gap between homogeneous and heterogeneous catalysis

2016 ◽  
Vol 6 (24) ◽  
pp. 8418-8427 ◽  
Author(s):  
M. Buaki-Sogó ◽  
A. Vivian ◽  
L. A. Bivona ◽  
H. García ◽  
M. Gruttadauria ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Heterogeneous Catalysis ◽  
Single Walled Carbon Nanotubes ◽  
The Novel ◽  
Cyclic Carbonates ◽  
Functionalized Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Novel Materials ◽  
Walled Carbon Nanotubes

Single walled carbon nanotubes were functionalized with imidazolium based salts and successfully used as catalysts for the conversion of CO2. The novel materials displayed excellent catalytic activity.

Dye functionalized carbon nanotubes for photoelectrochemical water splitting – role of inner tubes

2016 ◽  
Vol 4 (7) ◽  
pp. 2473-2483 ◽  
Author(s):  
Yi Cheng ◽  
Amir Memar ◽  
Martin Saunders ◽  
Jian Pan ◽  
Chang Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Water Splitting ◽  
Water Oxidation ◽  
Photoelectrochemical Water Splitting ◽  
Oxidation Catalysts ◽  
Functionalized Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Dye functionalized double- and triple-walled carbon nanotubes are effective photoanodes for water splitting without the attachment of semiconductor and water oxidation catalysts.

Direct evidence for the existence of multi-walled carbon nanotubes with hexagonal cross-sections

Carbon ◽  
2012 ◽  
Vol 50 (7) ◽  
pp. 2524-2529 ◽  
Author(s):  
Zhanbing He ◽  
Xiaoxing Ke ◽  
Sara Bals ◽  
Gustaaf Van Tendeloo
Keyword(s):  
Carbon Nanotubes ◽  
Cross Sections ◽  
Direct Evidence ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Mechanical and Thermal Behavior of a Polymer Composite Reinforced with Functionalized Carbon Nanotubes

2007 ◽  
Vol 334-335 ◽  
pp. 705-708 ◽  
Author(s):  
Ka Keung Wong ◽  
San Qiang Shi ◽  
Alan Kin Tak Lau
Keyword(s):  
Carbon Nanotubes ◽  
Epoxy Composite ◽  
Hardness Test ◽  
Single Walled Carbon Nanotubes ◽  
Micro Hardness ◽  
Functionalized Carbon Nanotubes ◽  
The Past ◽  
Bonding Properties ◽  
Walled Carbon Nanotubes ◽  
Scanning Electron

Although many studies have been conducted in the past few years on the possibility of using carbon nanotube (CNT) to improve the performance of polymer-based materials, some of the results were contradictory and lack of coherence. Thus, the in-depth understanding of CNT composites is required. In this paper, single-walled carbon nanotubes (SWNTs), which were functionalized by sonicating with nitric and sulfuric acids, will be used to fabricate a SWNT/epoxy composite. There are two reasons for functionalizing the SWNTs, they are (i) to improve the dispersion of the SWNTs in polymer, and (ii) to improve the interfacial bonding properties between the SWNTs and polymer matrix. Tensile property test and micro-hardness test will be carried out to examine the mechanical properties of the composites with different SWNT contents. Thermogravimetry Analysis (TGA) will be used to evaluate the thermal properties of the composites. Scanning Electron Microscope (SEM) will also be used to investigate the failure mechanism of the composites after tensile test. A comparison of the composites with functionalized and non-functionalized SWNTs will be given to elaborate the effect of nanotube functionalization.

scholarly journals Electrically Conductive Composite based on Functionalized Carbon Nanotubes/Epoxy Resin

2020 ◽  
Vol 9 (4) ◽  
pp. 1401-1404
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Epoxy Resin ◽  
Isopropyl Alcohol ◽  
Electrophysical Properties ◽  
Electrically Conductive ◽  
Functionalized Carbon Nanotubes ◽  
Multi Walled Carbon Nanotubes ◽  
Electrically Conductive Composite ◽  
Walled Carbon Nanotubes

This work is devoted to the study of the effect of carbon nanotubes functionalization on the electrical conductivity of composite materials based on them. Carbon nanotubes were functionalized by treatment in nitric acid and isopropyl alcohol. Changes in the morphology of multi-walled carbon nanotubes during liquid-phase functionalization were investigated using Auger-electron microscopy. Samples of composite material on the basis of initial and functionalized carbon nanotubes and epoxy resin were prepared and the concentration dependence of electrical conductivity using the four-probe method was studied. The study reveals the effect of functionalization in various solutions on the electrophysical properties of the obtained carbon nanotubes/epoxy composites.

Oxidation state selective sorption behavior of plutonium using N,N-dialkylamide functionalized carbon nanotubes: experimental study and DFT calculation

RSC Advances ◽  
2016 ◽  
Vol 6 (82) ◽  
pp. 78692-78701 ◽  
Author(s):  
Nishesh Kumar Gupta ◽  
Arijit Sengupta ◽  
Anil Boda ◽  
V. C. Adya ◽  
Sk. Musharaf Ali
Keyword(s):  
Carbon Nanotubes ◽  
Experimental Study ◽  
Phase Separation ◽  
Oxidation State ◽  
Dft Calculation ◽  
Sorption Behavior ◽  
Functionalized Carbon Nanotubes ◽  
Selective Sorption ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Selective phase separation of Pu4+ and PuO22+ was performed using N,N-dialkylamide functionalized multi-walled carbon nanotubes (AFMWCNTs).

scholarly journals Non-enzymatic glucose sensor with electrodeposited silver/carbon nanotubes composite electrode

2019 ◽  
Vol 39 (6) ◽  
Author(s):  
Syeda Ammara Shabbir ◽  
Sana Tariq ◽  
M. Gul Bahar Ashiq ◽  
Waqar A. Khan
Keyword(s):  
Carbon Nanotubes ◽  
Tin Oxide ◽  
Composite Electrode ◽  
Reduction Potential ◽  
Glucose Sensor ◽  
Electrochemical Process ◽  
Glucose Sensors ◽  
Functionalized Carbon Nanotubes ◽  
Good Electrocatalytic Activity ◽  
Free Glucose

Abstract Diabetes mellitus is a debilitating disease that affects each and every organ of human body. Hence it is important to continuously monitor the glucose level throughout the day and night. Glucose sensors are in great demand due to a rapid increase in diabetic community. A strategy has been implemented here to fabricate silver nanoparticles (AgNPs) with the support of functionalized carbon nanotubes (f-CNTs). Silver/carbon nanotubes (Ag/CNTs) nanocomposite electrode have been prepared by electrochemical process on Fluorine doped tin oxide (FTO) glass, by varying silver (Ag) concentrations for non-enzymatic glucose sensor. The variable Ag concentration in the morphology of Ag/CNTs nanocomposite has influenced the electrical conductivity, oxidation and reduction potential and electrochemical activity of glucose. Highest current density and good electrocatalytic activity for electrodes are obtained at 70 mM concentration of silver in Ag/CNTs composite. The present study indicates that the Ag/CNTs electrode is a possible substitute of the expensive glassy carbon electrode for enzyme-free glucose sensors.

Fabric-based flexible electrode with multi-walled carbon nanotubes@Ni network structure as a novel anode for hydrogen peroxide electrooxidation

RSC Advances ◽  
2014 ◽  
Vol 4 (34) ◽  
pp. 17454-17460 ◽  
Author(s):  
Dongming Zhang ◽  
Ke Ye ◽  
Kui Cheng ◽  
Yang Xu ◽  
Jinling Yin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Peroxide ◽  
Network Structure ◽  
Three Dimensional ◽  
Flexible Electrode ◽  
Simple Method ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

A simple method involving dyeing and electrodeposition is introduced to fabricate a three-dimensional Ni@multi-walled carbon nanotubes flexible electrode on wearable fabric.

Sign in / Sign up

Export Citation Format

Share Document