Configuration and capacitance properties of polypyrrole/aligned carbon nanotubes synthesized by electropolymerization

Xu, Ying; Zhuang, Shuqi; Zhang, Xiaoyan; He, Pingang; Fang, Yuzhi

doi:10.1007/s11434-011-4745-z

Cited by 14 publications

(5 citation statements)

References 37 publications

(46 reference statements)

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“…Carbon nanotubes are combined with carbon nanostructures, conducting polymers or metal oxides to form nanocomposite materials that display favorable electronic and mechanical properties [95]. Composites containing carbon nanotubes and an electroactive phase exhibit pseudocapacitive properties like metal oxide or conducting polymers and represent an important breakthrough for developing a new generation of supercapacitors based on three reasons: (i) the percolation of the electroactive particles is more efficient with nanotubes than with other carbon materials; (ii) the open mesoporous network formed by the entanglement of nanotubes allows ions to diffuse easily to the active surface of the composite components; and (iii) since the nanotubular materials are characterized by a high resiliency, the composite electrodes can easily adapt to the volumetric changes during the charging/discharging process, which improves drastically the cycling performance [22].…”

Section: Hybrid Materials Of Carbon Nanotubes For Energy Storagementioning

confidence: 99%

“…A very promising energy storage behavior was reported for 3D structure composite based on aligned carbon nanotubes (ACNTs) offering a large specific surface area, superior electronic transfer ability through individual nanotubes, and chemical inertness [95]. Three-dimensional Carbon Nanotubes -Recent Progresshybrid composite material composed of 2D fish scale-like polyaniline nanosheet arrays on graphene oxide sheets and carbon nanotubes exhibiting high specific capacitance of 589 F g À1 compared to 397 F g À1 for pristine PANI was also investigated [18].…”

Section: Carbon Nanotubes -Recent Progress 162mentioning

confidence: 99%

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Recent Progress on Electrochemical Capacitors Based on Carbon Nanotubes

Grądzka¹,

Winkler²

2018

Carbon Nanotubes - Recent Progress

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This review is focused on the theoretical and practical aspects of electrochemical c a p a c i t o r sb a s e do nc a r b o nn a n o t u b e s .I np articular, recent improvements in the capacitance properties of the systems are discussed. In the first part, the charge storage mechanisms of the electrochemical capacitors are briefly described. The next part of the review is devoted to the capacitance properties of pristine single-and multi-walled carbon nanotubes. The major portion of the review is focused on the capacitance properties of modified carbon nanotubes. The electrochemical properties of nanotubes with boron, nitrogen, and other atoms incorporated into the carbon network structure as well as nanotubes modified with different functional groups are discussed. Special attention is paid to the composites of carbon nanotubes and conducting polymers, transition metal oxides, carbon nanostructures, and carbon gels. In all cases, the influences of different parameters such as porosity, structure of the electroactive layer, conductivity of the layer, nature of the heteroatoms, solvent and supporting electrolyte on the capacitance performance of hybrid materials are discussed. Finally, the capacitance properties of different systems containing carbon nanotubes are compared and summarized.

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Section: Hybrid Materials Of Carbon Nanotubes For Energy Storagementioning

confidence: 99%

Section: Carbon Nanotubes -Recent Progress 162mentioning

confidence: 99%

Recent Progress on Electrochemical Capacitors Based on Carbon Nanotubes

Grądzka¹,

Winkler²

2018

Carbon Nanotubes - Recent Progress

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“…Presented results are hard to follow, stability is not addressed. A composite of aligned CNTs and electropolymerized PPy did not show the performance improvements noticed elsewhere and with other ICPs as addressed above; stability was not examined [251].…”

Section: Carbon Nanotubesmentioning

confidence: 87%

Composites of Intrinsically Conducting Polymers with Carbonaceous Materials for Supercapacitors – An Update

Holze

2023

Univers. J. Electrochem.

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Supercapacitors are an important component in the electric energy landscape with rapidly growing importance. Their energy density still does not meet growing expectations. For improvements optimization of already established materials as well as new materials in electrodes and in electrolyte (solutions) are required. To compensate or correct drawbacks and flaws of a given material – whether new or already established – combination with a second one, i.e. formation of a composite, is a helpful and popular option. Carbon in its many forms is an established supercapacitor electrode material with only limited charge storage capability; intrinsically conducting polymers show promising storage capabilities but limited stability and electronic conductivity. Adding carbons to these polymers has been a popular recipe rather early, but a systematic survey of these combinations with attention to the type of carbon, of polymer, of their relative fractions and the electrode architecture has indicated major room for improvements. This update presents representative examples, follows lines of reasoning and searches for conclusions from already available results. It ends with suggestions for further research and development.

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“…Before polypyrrole synthesis, ACNTs were pretreated with nitric acid to improve their hydrophilicity which enables uniform polypyrrole coating. Besides, He et al demonstrated the coating of polypyrrole layers over ACNTs via electropolymerization as well [199]. Electropolymerization was conducted utilizing CV by scanning between 0 and 1.0 V (vs. Ag/AgCl) in pyrrole and LiClO 4 aqueous solution.…”

Section: Conducting Polymermentioning

confidence: 99%