Preparation of a Three-Dimensional Ordered Macroporous Carbon Nanotube/Polypyrrole Composite for Supercapacitors and Diffusion Modeling

2013 ◽  
Vol 117 (40) ◽  
pp. 20446-20455 ◽  
Author(s):  
Dan Zhang ◽  
Qi-Qi Dong ◽  
Xiang Wang ◽  
Wei Yan ◽  
Wei Deng ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Three Dimensional ◽  
Diffusion Modeling ◽  
Ordered Macroporous ◽  
Polypyrrole Composite ◽  
And Diffusion ◽  
Macroporous Carbon

Synthesis of nanosized 58S bioactive glass particles by a three-dimensional ordered macroporous carbon template

2017 ◽  
Vol 75 ◽  
pp. 590-595 ◽  
Author(s):  
Lijun Ji ◽  
Wei Qiao ◽  
Kai Huang ◽  
Yuheng Zhang ◽  
Huayu Wu ◽  
...  
Keyword(s):  
Bioactive Glass ◽  
Three Dimensional ◽  
Carbon Template ◽  
Ordered Macroporous ◽  
Macroporous Carbon

Engineering colloids with narrow size distribution in a three dimensional ordered macroporous carbon microreactor

2017 ◽  
Vol 190 ◽  
pp. 1-4 ◽  
Author(s):  
Lijun Ji ◽  
Ge Liang ◽  
Yunfeng Si ◽  
Wei Qiao ◽  
Yuheng Zhang ◽  
...  
Keyword(s):  
Size Distribution ◽  
Three Dimensional ◽  
Narrow Size Distribution ◽  
Ordered Macroporous ◽  
Macroporous Carbon

Doping and Electrochemical Capacitance of Carbon Nanotube-Polypyrrole Composite Films

2001 ◽  
Vol 703 ◽  
Author(s):  
Mark Hughes ◽  
George Z. Chen ◽  
Milo S. P. Shaffer ◽  
Derek J. Fray ◽  
Alan H. Windle
Keyword(s):  
Carbon Nanotube ◽  
Conducting Polymer ◽  
Electrochemical Impedance ◽  
Composite Films ◽  
Three Dimensional ◽  
Small Diffusion ◽  
Multiwalled Nanotubes ◽  
Order Of Magnitude ◽  
Polypyrrole Composite ◽  
Conducting Polymer Composites

ABSTRACTComposite films were electrochemically synthesised via the simultaneous deposition of multiwalled nanotubes and polypyrrole, a conducting polymer. Negatively charged functional groups attached to the surface of the acid treated nanotubes enables the tubes to act as a dopant for the PPy in these films. Scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy revealed that the nano-porous three-dimensional arrangement of PPy coated MWNTs in these films produced specific capacitances per mass and geometric area as high as 192 F g-1 and 1.0 F cm-2, respectively. This value of specific capacitance per geometric area exceeds that of both component materials and other carbon nanotube-conducting polymer composites. The composite films described in this report were also able to charge and discharge more than an order of magnitude faster than similarly prepared pure PPy films. The nano-porosity and small diffusion distances within the composite films, crucial to achieving the superior capacitive performance, were found to be dependent on the concentration of nanotubes and additional dopant anions in the polymerisation electrolyte, offering possibilities for tailoring of the composite structure.

scholarly journals A Label and Probe-Free Zika Virus Immunosensor Prussian Blue@carbon Nanotube-Based for Amperometric Detection of the NS2B Protein

Biosensors ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 157
Author(s):  
Bárbara V. M. Silva ◽  
Marli T. Cordeiro ◽  
Marco A. B. Rodrigues ◽  
Ernesto T. A. Marques ◽  
Rosa F. Dutra
Keyword(s):  
Carbon Nanotube ◽  
Prussian Blue ◽  
Zika Virus ◽  
Point Of Care ◽  
Amperometric Detection ◽  
Cross Reactivity ◽  
Structural Protein ◽  
Serum Samples ◽  
Polypyrrole Composite ◽  
Congenital Disabilities

Zika virus (ZIKV) is a mosquito-borne infection, predominant in tropical and subtropical regions causing international concern due to the ZIKV disease having been associated with congenital disabilities, especially microcephaly and other congenital abnormalities in the fetus and newborns. Development of strategies that minimize the devastating impact by monitoring and preventing ZIKV transmission through sexual intercourse, especially in pregnant women, since no vaccine is yet available for the prevention or treatment, is critically important. ZIKV infection is generally asymptomatic and cross-reactivity with dengue virus (DENV) is a global concern. An innovative screen-printed electrode (SPE) was developed for amperometric detection of the non-structural protein (NS2B) of ZIKV by exploring the intrinsic redox catalytic activity of Prussian blue (PB), incorporated into a carbon nanotube–polypyrrole composite. Thus, this immunosensor has the advantage of electrochemical detection without adding any redox-probe solution (probe-less detection), allowing a point-of-care diagnosis. It was responsive to serum samples of only ZIKV positive patients and non-responsive to negative ZIKV patients, even if the sample was DENV positive, indicating a possible differential diagnosis between them by NS2B. All samples used here were confirmed by CDC protocols, and immunosensor responses were also checked in the supernatant of C6/36 and in Vero cell cultures infected with ZIKV.

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