Nitroxide radical polymer/carbon-nanotube-array electrodes with improved C-rate performance in organic radical batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (42) ◽  
pp. 33044-33048 ◽  
Author(s):  
Chun-Hao Lin ◽  
Jyh-Tsung Lee ◽  
Dong-Rong Yang ◽  
Hsiu-Wei Chen ◽  
Shao-Tzu Wu
Keyword(s):  
Carbon Nanotubes ◽  
Electron Transfer ◽  
Nitroxide Radical ◽  
Current Collector ◽  
Organic Radical ◽  
Rate Performance ◽  
Transfer Resistance ◽  
Nanotube Array ◽  
Carbon Nanotube Array ◽  
Electron Transfer Resistance

The intimate connection between carbon nanotubes and the current collector reduces electron-transfer resistance of the cathode and enhances the C-rate performance of the batteries.

scholarly journals An Immunosensor for Pathogenic Staphylococcus aureus Based on Antibody Modified Aminophenyl-Au Electrode

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Amani Chrouda ◽  
Mohamed Braiek ◽  
Karima Bekir Rokbani ◽  
Amina Bakhrouf ◽  
Abderrazak Maaref ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Electron Transfer ◽  
Gold Electrode ◽  
High Selectivity ◽  
Electrochemical Impedance ◽  
Transfer Resistance ◽  
Acidic Aqueous Solution ◽  
Stepwise Assembly ◽  
Electron Transfer Resistance

The objective of this work is to elaborate an immunosensing system which will detect and quantify Staphylococcus aureus bacteria. A gold electrode was modified by electrografting of 4-nitrophenyl diazonium, in situ synthesized in acidic aqueous solution. The immunosensor was fabricated by immobilizing affinity-purified polyclonal anti S. aureus antibodies on the modified gold electrode. Cyclic voltammetry (CV) and Faradaic Electrochemical Impedance Spectroscopy (EIS) were employed to characterize the stepwise assembly of the immunosensor. The performance of the developed immunosensor was evaluated by monitoring the electron-transfer resistance detected using Faradaic EIS. The experimental results indicated a linear relationship between the relative variation of the electron transfer resistance and the logarithmic value of S. aureus concentration, with a slope of 0.40 ± 0.08 per decade of concentration. A low quantification limit of 10±2 CFU per ml and a linear range up to 107±2×106 CFU per mL were obtained. The developed immunosensors showed high selectivity to Escherichia coli and Staphylococcus saprophyticus.

scholarly journals Electrochemical sensors based on carbon nanotubes and their use in biomedical research

2012 ◽  
Vol 58 (1) ◽  
pp. 12-31
Author(s):  
V.A. Buzanovskii
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electrode Surface ◽  
Electrochemical Sensors ◽  
General Information ◽  
Nanotube Array ◽  
The Third ◽  
Carbon Nanotube Array ◽  
Working Surface ◽  
Manufacturing Techniques

Electrochemical sensors based on carbon nanotubes are widely used in biomedical studies. According to design the sensors can be divided into three groups: (i) sensors based on a carbon nanotube array; (ii) sensors manufactured by means of composites containing carbon nanotubes; (iii) sensors, which are electrodes with working surface containing carbon nanotubes. The development directions of sensors of the first and the second group, and also sensors of the third group which are manufactured by abrasive immobilization of carbon nanotubes on an electrode surface and by solvent dispersion and casting immobilization of carbon nanotubes on an electrode surface by means of N,N-dimethylformamide, surfactants, and Nafion are analyzed. The general information on manufacturing techniques of these sensors is given. The opportunities of these sensors for biomedical researches are demonstrated.

The Internal Buckling Behavior Induced by Growth Self-restriction in Vertical Multi-walled Carbon Nanotube Arrays

MRS Advances ◽  
2018 ◽  
Vol 3 (45-46) ◽  
pp. 2815-2823 ◽  
Author(s):  
Quan Zhang ◽  
Guo-an Cheng ◽  
Rui-ting Zheng
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Van Der Waals ◽  
Nanotube Arrays ◽  
Nanotube Array ◽  
Static Compression ◽  
Carbon Nanotube Array ◽  
Carbon Nanotube Arrays ◽  
Compression Model ◽  
Quasi Static Compression

ABSTRACTThe internal buckling is a common phenomenon in the as-grown carbon nanotube arrays. It makes the physical properties of carbon nanotube array in experiment lower than that in theory. In this work, we analyzed the formation and evolution mechanism of the internal buckling based on quasi-static compression model, which is different from collective effect of the van der Waals interactions. The self-restriction effect and the different growth rate of carbon nanotubes verify the possibility of the quasi-static compression model to explain the morphology evolution of vertical carbon nanotube arrays, especially the phenomenon of the quasi-straight and bent carbon nanotubes coexisted in the array. We generalized the Euler beam to wave-like beam and explained the mechanism of high-mode buckling combined with the van der Waals interaction. The calculated result about the link between compressive stress and strain confirms with the stage of collective buckling in the quasi-static compression test of carbon nanotube array. Preparation of well-organized carbon nanotube arrays was strong evidence verified the effect of self-restriction in experiment.

scholarly journals Carbon Nanotubes: Integrated Carbon Nanotube Array as Dry Adhesive for High-Temperature Silicon Processing (Adv. Mater. 37/2011)

2011 ◽  
Vol 23 (37) ◽  
pp. 4208-4208
Author(s):  
Youngkee Eun ◽  
Jae-Ik Lee ◽  
Jungwook Choi ◽  
Youngsup Song ◽  
Jongbaeg Kim
Keyword(s):  
Carbon Nanotubes ◽  
High Temperature ◽  
Carbon Nanotube ◽  
Nanotube Array ◽  
Dry Adhesive ◽  
Carbon Nanotube Array

scholarly journals Study of H2 physical adsorption in single-walled carbon nanotube array

AIP Advances ◽  
2013 ◽  
Vol 3 (8) ◽  
pp. 082119 ◽  
Author(s):  
Shiqi Zhou ◽  
Xuejuan Liu ◽  
Kaiwei Yang ◽  
Hui Zou
Keyword(s):  
Carbon Nanotube ◽  
Physical Adsorption ◽  
Nanotube Array ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon ◽  
Carbon Nanotube Array
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