The production of aligned MWCNT/polypyrrole composite films

Schnoor, Thea; Smith, Graeme; Eder, Dominik; Kozioł, Krzysztof; Burstein, G.T.; Windle, Alan H.; Schulte, Karl

doi:10.1016/j.carbon.2013.04.016

Cited by 40 publications

(16 citation statements)

References 39 publications

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“…It is also worthwhile to mention that the PDA–PPy with higher conductivity can be obtained by combining PPy with other highly conductive materials, such as silver nanoparticles, graphene, and iron oxides; the applications of these materials in biotechnology are limited due to poor processability, high cost, and hash reaction conditions. To achieve better biocompatibility, conductive PPy/cellulose‐derivatives composites with a conductivity ranged from 10 −4 to 10 0 S cm −1 were prepared and investigated intensively nowadays .…”

Section: Resultsmentioning

confidence: 99%

Bio‐Inspired Dopamine Functionalization of Polypyrrole for Improved Adhesion and Conductivity

Zhang

Yang

Pan

et al. 2013

Macromol. Rapid Commun.

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We report the functionalization of polypyrrole (PPy) with a "sticky" biomolecule dopamine (DA), which mimics the essential component of mussel adhesive protein. PPy is one of the most promising electrically conductive polymers with good biocompatibility. The research findings reveal that the DA functionalization enhances the dispersibility and stability of PPy in water and its film adhesion to substrate surface significantly. The electrical conductivity of PPy increases to a maximum value and then decreases with the increasing DA concentration. An optimal DA to pyrrole (Py) mole ratio is found to be between 0.1 and 0.2, at which both conductivity and adhesion of DA-functionalized PPy has been improved.

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Section: Resultsmentioning

confidence: 99%

Bio‐Inspired Dopamine Functionalization of Polypyrrole for Improved Adhesion and Conductivity

Zhang

Yang

Pan

et al. 2013

Macromol. Rapid Commun.

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“…Nyquist plot of CNT and CNT/PPy film were obtained in the frequency range from 0.001 Hz to 100 KHz ( Figure S3a). [8,30] To fabricate a highly flexible energy storage device, two pieces of as-synthesized CNT/PPy film electrodes were assembled together with a poly(vinyl alcohol) (PVA)/H 3 PO 4 electrolyte separated with a piece of paper as the separator to form a sandwiched structure. The CNT/PPy composite film electrode showed an approximately vertical EIS curve tail in a lower frequency range which indicates efficient ion diffusion in electrodes and nearly ideal capacitive behavior.…”

Section: Resultsmentioning

confidence: 99%

“…Carbon nanotubes (CNTs), with high electronic and thermal conductivity, excellent mechanical properties, good corrosion resistance, high temperature stability, and a large surface area, [8][9][10] have been used as the electrodes for all-solid-state and flexible supercapacitors. Carbon nanotubes (CNTs), with high electronic and thermal conductivity, excellent mechanical properties, good corrosion resistance, high temperature stability, and a large surface area, [8][9][10] have been used as the electrodes for all-solid-state and flexible supercapacitors.…”

Section: Introductionmentioning

confidence: 99%

Highly flexible all-solid-state supercapacitors based on carbon nanotube/polypyrrole composite films and fibers

Zhou

Shang

et al. 2016

RSC Adv.

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Flexible all-solid-state film-shaped supercapacitors in both film and fiber configurations have been fabricated by depositing polypyrrole (PPy) onto freestanding carbon nanotube (CNT) films and also directly twisting the composite film into thin fibers. These CNT/PPy films and fibers maintain a porous structure in which the PPy is coated on individual CNTs as well as their interconnections. The specific capacitance of a solid CNT/PPy composite film supercapacitor reaches 139.2 F/g (27.8 mF/cm 2 , 10 mV/s) and 331.4 F/g (5 mV/s) in a solid fiber supercapacitor directly twisting the CNT/PPy composite film into a fiber, which is attributed to the uniform PPy coating throughout the CNT film and both inside and outside of the fiber. These devices show high stability during 10000 charge and discharge cycles, and good flexibility under bending and twisting. Our CNT/PPy film and fiber-shaped supercapacitors have many potential applications in flexible electronics and energy storage textiles.

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“…These are environmentally safe materials [7]. They can be used as substrates for the deposition of polymers [8][9][10] and metal oxides [11] due to their mechanical stability and chemical inertness during prolonged cycling [12]. The CNT arrays grown on a conductive substrate can be used directly as a working electrode of a supercapacitor [13,14].…”

Section: Introductionmentioning

confidence: 99%

Effect of oxidative treatment on the electrochemical properties of aligned multi-walled carbon nanotubes

et al. 2016

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Vertically aligned multi-walled carbon nanotubes (MWNTs) were grown on the surface of electroconductive silicon substrate by catalytic chemical vapor deposition (CCVD) of a mixture of toluene and ferrocene vapors at 800°С. The anisotropic structure of the array that is due to the mutual orientation of MWNTs makes such materials attractive for use as supercapacitor electrodes. The effect of iron nanoparticles encapsulated in MWNTs as a result of synthesis on the electrochemical capacity of the sample in a 1 М H 2 SO 4 solution was studied. Iron was removed during the thermal treatment of the MWNT array in a 20% H 2 SO 4 solution under the normal or hydrothermal conditions. The contribution of redox processes involving iron was shown to be comparable to the contribution of the double-layer capacity of MWNTs. The hydrothermal treatment allows easy separation of the array from the silicon substrate without any loss of electric coupling of MWNTs.

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The production of aligned MWCNT/polypyrrole composite films

Cited by 40 publications

References 39 publications

Bio‐Inspired Dopamine Functionalization of Polypyrrole for Improved Adhesion and Conductivity

Bio‐Inspired Dopamine Functionalization of Polypyrrole for Improved Adhesion and Conductivity

Highly flexible all-solid-state supercapacitors based on carbon nanotube/polypyrrole composite films and fibers

Effect of oxidative treatment on the electrochemical properties of aligned multi-walled carbon nanotubes

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