Continuous self-assembly of carbon nanotube thin films and their composites for supercapacitors

Cheng, Hanlin; Koh, Kunsuk; Liu, Peng; Tran, Thang Q.; Duong, Hai M.

doi:10.1016/j.colsurfa.2015.06.039

Cited by 28 publications

(11 citation statements)

References 41 publications

(28 reference statements)

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“…MnO 2 is also naturally abundant, inexpensive, and environmentally benign . However, low electrical conductivity (10 –5 –10 –6 S·cm –1 ), low cyclic stability, and low rate capacity have limited the applications of MnO 2 . , To overcome these limitations, an effective strategy is to combine carbonaceous material with manganese nanostructures …”

Section: Introductionmentioning

confidence: 99%

“…12 However, low electrical conductivity (10 −5 −10 −6 S•cm −1 ), low cyclic stability, and low rate capacity have limited the applications of MnO 2 . 13,14 To overcome these limitations, an effective strategy is to combine carbonaceous material with manganese nanostructures. 15 Graphene, an outstanding two-dimensional (2D) carbon structure, has attracted strong considerations as a result of its exceptional mechanical, electrical, thermal, and optical properties.…”

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

MnO₂ Nanoflowers Deposited on Graphene Paper as Electrode Materials for Supercapacitors

Sadak

Wang

Guan

et al. 2019

ACS Appl. Nano Mater.

104

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We recently reported a simple and cost-effective green method to produce free-standing, flexible, and highly conductive electrochemically exfoliated graphene paper (GrP) for a supercapacitor application. To improve the capacitance behavior of GrP, manganese dioxide (MnO2) was electrochemically deposited on GrP with different number of MnO2 cycles. After the electrochemical deposition process, MnO2 nanoflowers were formed, which provide a fast transfer of electrolyte ions. After 10 cycles of electrodeposition, MnO2-coated GrP (GrP/10-MnO2, which is the optimal composition) exhibited an excellent capacitive performance with a high specific capacitance of 385.2 F·g–1 at 1 mV·s–1 in 0.1 M Na2SO4 electrolyte and outstanding capacitance retention after 5000 consecutive cycles. Taking advantage of both superior mechanical and capacitance behavior of GrP and GrP/10-MnO2 electrodes, a flexible solid-state asymmetric supercapacitor (SASc) device was assembled using GrP/10-MnO2 and GrP as positive and negative electrode, respectively. The fabricated SASc device exhibited not only high areal capacitances of 76.8 mF cm–2 at a current density of 0.05 mA cm–2 but also excellent cycling stability of 82.2% after 5000 consecutive galvanostatic charge/discharge cycles. This flexible supercapacitor can also deliver a high energy density of 6.14 mWh·cm–2 with a power density of 36 mW·cm–2. This research represents a new direction for exploring the potential of free-standing GrP and its nanocomposites in flexible energy-storage systems.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

MnO₂ Nanoflowers Deposited on Graphene Paper as Electrode Materials for Supercapacitors

Sadak

Wang

Guan

et al. 2019

ACS Appl. Nano Mater.

104

View full text Add to dashboard Cite

show abstract

“…Hence, the study of novel cable's materials and designs with the exposure of non-hysteretic characteristics, high force transmission capacity, minimal size such as polymer fibres used for fishing line and sewing thread is promising 81 . Carbon nanotube is also a potential candidate 33,113,114,137,[196][197][198][199] . In addition, it is the fact that the feedback of position and force information is inevitably vital for the surgeons to do precise surgical procedures.…”

Section: Cable-driven Actuatormentioning

confidence: 99%

A survey on actuators-driven surgical robots

Nho

Phee

2016

Sensors and Actuators A: Physical

159

107

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“…Due to the high aspect ratio, high mechanical strength, and high conductivity, CNTs have been the most popular item in basic studies and applications, 18,19 while the advanced studies on CNTs and nano‐materials make the application range broader. For example, carbon nanotube films 20 and carbon nanotube wires 21,22 are being practically used in our daily lives. At present, CNTs have been pervasively used as fillers when producing composite conductive materials.…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotube/polypropylene/polycarbonate conductive nanocomposite films: Preparation and characterization

Zhang

Wang

et al. 2021

J of Applied Polymer Sci

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In this study, CNT/PP/PC conductive composite films were prepared by compounding PP (polypropylene)/PC (polycarbonate) (1:1) and carbon nanotubes (CNT) using a physical blending and hot pressing method. Next, Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and water contact angle measurement are conducted in order to characterize the properties of CNT/PP/PC conductive films. The results showed there is no chemical reaction inside the PP/PC composite film with the addition of CNT. Neither the CNT composite film containing 3 wt% nor the control film decomposed thermally within 220°C. The water contact angle increased from 88.5° for the control film to 110.99° for the composite film containing 3 wt% CNT. This indicates that the film has good thermal stability and hydrophobic properties. The percolation threshold was obtained when the content of CNT was 3 wt%, and the best conductivity of the CNT/PP/PC composite film was 5.53 S/m at this time. In order to improve the tensile properties of the film, a small amount of polyurethane (TPU) was added to the film, and the maximum tensile strength was 24.91 Mpa when the content of TPU was 6.7%. This study can provide a strategy for the practical application of flexible electronic devices.

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Continuous self-assembly of carbon nanotube thin films and their composites for supercapacitors

Cited by 28 publications

References 41 publications

MnO₂ Nanoflowers Deposited on Graphene Paper as Electrode Materials for Supercapacitors

MnO₂ Nanoflowers Deposited on Graphene Paper as Electrode Materials for Supercapacitors

A survey on actuators-driven surgical robots

Carbon nanotube/polypropylene/polycarbonate conductive nanocomposite films: Preparation and characterization

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Continuous self-assembly of carbon nanotube thin films and their composites for supercapacitors

Cited by 28 publications

References 41 publications

MnO2 Nanoflowers Deposited on Graphene Paper as Electrode Materials for Supercapacitors

MnO2 Nanoflowers Deposited on Graphene Paper as Electrode Materials for Supercapacitors

A survey on actuators-driven surgical robots

Carbon nanotube/polypropylene/polycarbonate conductive nanocomposite films: Preparation and characterization

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Product

Resources

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MnO₂ Nanoflowers Deposited on Graphene Paper as Electrode Materials for Supercapacitors

MnO₂ Nanoflowers Deposited on Graphene Paper as Electrode Materials for Supercapacitors