Controllable synthesis of multi-walled carbon nanotubes/poly(3,4-ethylenedioxythiophene) core-shell nanofibers with enhanced electrocatalytic activity

Zhang, Kaixin; Xu, Jingkun; Duan, Xuemin; Lu, Limin; Hu, Dufen; Zhang, Long; Nie, Tao; Brown, Kenneth B.

doi:10.1016/j.electacta.2014.06.053

Cited by 23 publications

(10 citation statements)

References 37 publications

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“…42−44 The existence of PEDOT was evidenced by the peak of COC bond deformation at 437 cm −1 , OCC deformation at 848 cm −1 , oxyethylene ring deformation at 988 cm −1 , asymmetric CC stretching pattern at 1502 cm −1 and symmetric CC stretching at 1432 cm −1 . 45,46 The above results about the PEDOT wrapping layer are in accordance with the FT-IR data in Figure 5b. To be specific, vibration bands at 1143 and 1090 cm −1 corresponding to the COC stretching confirmed the existence of ethylene dioxy group.…”

Section: ■ Results and Discussionsupporting

confidence: 87%

Hierarchical Manganese Dioxide/Poly(3,4-ethylenedioxythiophene) Core–Shell Nanoflakes on Ramie-Derived Carbon Fiber for High-Performance Flexible All-Solid-State Supercapacitor

Xiong

Wang

et al. 2016

ACS Sustainable Chem. Eng.

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We have proposed a kind of environment-friendly biological carbon fiber material derived from ramie for supercapacitor application. MnO 2 nanoflakes were electrochemically grown on the ramiederived carbon fibers (RCFs) with a PEDOT conductive polymer wrapping layer uniformly coated on the flake surface to enhance the electrochemical performance. Benefited from the ultrahigh electron transmission rate of the RCFs backbone, high capacitive activity of MnO 2 , impressive electrical conductivity of PEDOT film and synergistic effect among above three components, the hybrid electrode displayed a high specific capacitance with 922 F g −1 at a current density of 1 A g −1 and remarkable rate capability with capacitance retention of 345 F g −1 at even 40 A g −1 . An extremely flexible all-solid-state symmetric supercapacitor device based on the hybrid electrode was fabricated. It exhibited outstanding energy output efficiency (delivered an energy density of 19.17 Wh kg −1 at a power density of 500 W kg −1 ), high capacity retention rate (the capacity still retained 83% over 10000 cycles) and remarkable flexibility, showing its attractive prospect in wearable electronics and sustainable energy application.

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Section: ■ Results and Discussionsupporting

confidence: 87%

Hierarchical Manganese Dioxide/Poly(3,4-ethylenedioxythiophene) Core–Shell Nanoflakes on Ramie-Derived Carbon Fiber for High-Performance Flexible All-Solid-State Supercapacitor

Xiong

Wang

et al. 2016

ACS Sustainable Chem. Eng.

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“…8 only one oxidation peak was observed at 0.511 V without any reduction peak in the reverse scanning. This phenomenon is well consist with previous reports [47,48], and mechanism for the electrochemical oxidation of magnolol at the GrO-COO-Poly-IL/GCE can be proposed as Scheme 1 (II).…”

Section: Effects Of Scan Ratesupporting

confidence: 62%

A novel sensing platform based on ionic liquid integrated carboxylic-functionalized graphene oxide nanosheets for honokiol determination

Zhang

Chen

Liu

et al. 2015

Electrochimica Acta

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“…PEDOT functionalized materials are widely used as electrochemical sensors (Nie et al 2013; Zhang et al 2014; Zhang et al 2015). In particular, PEDOT/GO and its PEDOT/reduced GO counterpart have been shown to be effective for the selective chemical sensing of DA on 3mm diameter glassy carbon macroelectrodes using conventional cyclic voltammetry (100 mV/s sweep rate) (Wang et al 2014; Weaver et al 2014b).…”

Section: Introductionmentioning

confidence: 99%

Enhanced dopamine detection sensitivity by PEDOT/graphene oxide coating on in vivo carbon fiber electrodes

Taylor

Robbins

Catt

et al. 2017

Biosensors and Bioelectronics

176

113

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Dopamine (DA) is a monoamine neurotransmitter responsible for regulating a variety of vital life functions. In vivo detection of DA poses a challenge due to the low concentration and high speed of physiological signaling. Fast scan cyclic voltammetry at carbon fiber microelectrodes (CFEs) is an effective method to monitor real-time in vivo DA signaling, however the sensitivity is somewhat limited. Electrodeposition of poly(3,4-ethylene dioxythiophene) (PEDOT)/graphene oxide (GO) onto the CFE surface is shown to increase the sensitivity and lower the limit of detection for DA compared to bare CFEs. Thicker PEDOT/GO coatings demonstrate higher sensitivities for DA, but display the negative drawback of slow adsorption and electron transfer kinetics. The moderate thickness resulting from 25 s electrodeposition of PEDOT/GO produces the optimal electrode, exhibiting an 880% increase in sensitivity, a 50% decrease in limit of detection and minimally altered electrode kinetics. PEDOT/GO coated electrodes rapidly and robustly detect DA, both in solution and in the rat dorsal striatum. This increase in DA sensitivity is likely due to increasing the electrode surface area with a PEDOT/GO coating and improved adsorption of DA’s oxidation product (DA-o-quinone). Increasing DA sensitivity without compromising electrode kinetics is expected to significantly improve our understanding of the DA function in vivo.

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Controllable synthesis of multi-walled carbon nanotubes/poly(3,4-ethylenedioxythiophene) core-shell nanofibers with enhanced electrocatalytic activity

Cited by 23 publications

References 37 publications

Hierarchical Manganese Dioxide/Poly(3,4-ethylenedioxythiophene) Core–Shell Nanoflakes on Ramie-Derived Carbon Fiber for High-Performance Flexible All-Solid-State Supercapacitor

Hierarchical Manganese Dioxide/Poly(3,4-ethylenedioxythiophene) Core–Shell Nanoflakes on Ramie-Derived Carbon Fiber for High-Performance Flexible All-Solid-State Supercapacitor

A novel sensing platform based on ionic liquid integrated carboxylic-functionalized graphene oxide nanosheets for honokiol determination

Enhanced dopamine detection sensitivity by PEDOT/graphene oxide coating on in vivo carbon fiber electrodes

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