Activated hierarchical porous carbon as electrode membrane accommodated with triblock copolymer for supercapacitors

Ran, Fen; Shen, Kuiwen; Tan, Yongtao; Peng, Bowu; Chen, Shaohua; Zhang, Weijie; Niu, Xiaoqin; Kong, Ling‐Bin; Kang, Long

doi:10.1016/j.memsci.2016.05.011

Cited by 42 publications

(21 citation statements)

References 60 publications

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“…As shown in Fig. 3 d, the peaks centered at 531.1, 532.6, and 534.5 eV were assigned to V–N–O, C = O/N–O, and C–OH, respectively [ 19 , 31 , 39 , 40 ]. In addition, the peaks at approximately 514.1 and 521.6 eV typical of vanadium in the VN structure, and the peaks at 517.1 and 524.4 eV arose from the V–O bonds on the surface of VN/C (I) (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Polyethylene glycol (PEG, M w = 400) was obtained from Aladdin (Shanghai, China). PAN was prepared by solution polymerization as previously described [ 39 , 40 ]. The tri-block copolymer (BCP) PAN- b -PMMA- b -PAN was synthesized by reversible addition fragmentation chain (RAFT) polymerization as previously described [ 40 ].…”

Section: Methodsmentioning

confidence: 99%

“…PAN was prepared by solution polymerization as previously described [ 39 , 40 ]. The tri-block copolymer (BCP) PAN- b -PMMA- b -PAN was synthesized by reversible addition fragmentation chain (RAFT) polymerization as previously described [ 40 ]. All other chemicals (analytical grade) were obtained from Sinopharm Chemical Reagents Co. Ltd, China, and used without further purification.…”

Section: Methodsmentioning

confidence: 99%

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A Novel Hierarchical Porous 3D Structured Vanadium Nitride/Carbon Membranes for High-performance Supercapacitor Negative Electrodes

Yang

Zhao

et al. 2018

Nano-Micro Lett.

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Transition-metal nitrides exhibit wide potential windows and good electrochemical performance, but usually experience imbalanced practical applications in the energy storage field due to aggregation, poor circulation stability, and complicated syntheses. In this study, a novel and simple multi-phase polymeric strategy was developed to fabricate hybrid vanadium nitride/carbon (VN/C) membranes for supercapacitor negative electrodes, in which VN nanoparticles were uniformly distributed in the hierarchical porous carbon 3D networks. The supercapacitor negative electrode based on VN/C membranes exhibited a high specific capacitance of 392.0 F g−1 at 0.5 A g−1 and an excellent rate capability with capacitance retention of 50.5% at 30 A g−1. For the asymmetric device fabricated using Ni(OH)2//VN/C membranes, a high energy density of 43.0 Wh kg−1 at a power density of 800 W kg−1 was observed. Moreover, the device also showed good cycling stability of 82.9% at a current density of 1.0 A g−1 after 8000 cycles. This work may throw a light on simply the fabrication of other high-performance transition-metal nitride-based supercapacitor or other energy storage devices.Electronic supplementary materialThe online version of this article (10.1007/s40820-018-0217-1) contains supplementary material, which is available to authorized users.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

A Novel Hierarchical Porous 3D Structured Vanadium Nitride/Carbon Membranes for High-performance Supercapacitor Negative Electrodes

Yang

Zhao

et al. 2018

Nano-Micro Lett.

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“…S5(a-b) and Fig. 11(a-b)) were mainly due to the oxygen-containing functional groups on the carbon spheres, which might change the potential of positive electrode during the charge/discharge cycles of supercapacitors [23,24]. As for the sharply decreased specific capacitance (all less than 75 F/g (Fig.…”

Section: Electrochemical Performance Of As Prepared Hgcsmentioning

confidence: 98%

Preparation of Hierarchically Porous Graphitic Carbon Spheres and Their Applications in Supercapacitors and Dye Adsorption

Wang

et al. 2018

Preprint

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Hierarchical micro-/mesoporous graphitic carbon spheres (HGCS) with a uniform diameter of ~0.35 μm were synthesized by Fe-catalyzed graphitization of amorphous carbon spheres resultant from hydrothermal carbonization. The HGCS resultant from 3 h at 900 °C with 1.0 wt% Fe catalyst had high graphitization degree and surface area as high as 564 m2/g. They also exhibited high specific capacitance of 140 F/g at 0.2 A/g, good electrochemical stability with 94% capacitance retention after consecutive 2500 cycles. The graphitization degree of the HGCS contributed about 60% of their specific capacitance, and their specific capacitance per unit surface area was as high as 0.2 F/m2 which was much higher than in the most cases of porous amorphous carbon materials reported before. In addition, the HGCS showed a high adsorption capacity of 182.8 mg/g for methylene blue (MB), which was 12 times as high as that in the case of carbon spheres before graphitization.

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“…Carbonaceous materials, particularly activated carbon (AC), are the most widely used electrode materials of electrochemical double layer capacitors (EDLCs) because of their large specific surface area, size adjustment of pores, chemical stability, lower weight, low cost, excellent electrical conductivity, and environmental friendliness [ 17 , 18 ]. Many researchers have prepared carbon electrode materials with a high specific capacitance for EDLCs [ 19 , 20 ]. The introduction of electronic conductivity by doping the carbon matrix with nitrogen is a promising alternative to enhancing the specific surface area [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Liquid Phase Plasma Synthesis of Iron Oxide Nanoparticles on Nitrogen-Doped Activated Carbon Resulting in Nanocomposite for Supercapacitor Applications

Lee

Park

et al. 2018

Nanomaterials

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Iron oxide nanoparticles supported on nitrogen-doped activated carbon powder were synthesized using an innovative plasma-in-liquid method, called the liquid phase plasma (LPP) method. Nitrogen-doped carbon (NC) was prepared by a primary LPP reaction using an ammonium chloride reactant solution, and an iron oxide/NC composite (IONCC) was prepared by a secondary LPP reaction using an iron chloride reactant solution. The nitrogen component at 3.77 at. % formed uniformly over the activated carbon (AC) surface after a 1 h LPP reaction. Iron oxide nanoparticles, 40~100 nm in size, were impregnated homogeneously over the NC surface after the LPP reaction, and were identified as Fe3O4 by X-ray photoelectron spectroscopy and X-ray diffraction. NC and IONCCs exhibited pseudo-capacitive characteristics, and their specific capacitance and cycling stability were superior to those of bare AC. The nitrogen content on the NC surface increased the compatibility and charge transfer rate, and the composites containing iron oxide exhibited a lower equivalent series resistance.

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Activated hierarchical porous carbon as electrode membrane accommodated with triblock copolymer for supercapacitors

Cited by 42 publications

References 60 publications

A Novel Hierarchical Porous 3D Structured Vanadium Nitride/Carbon Membranes for High-performance Supercapacitor Negative Electrodes

A Novel Hierarchical Porous 3D Structured Vanadium Nitride/Carbon Membranes for High-performance Supercapacitor Negative Electrodes

Preparation of Hierarchically Porous Graphitic Carbon Spheres and Their Applications in Supercapacitors and Dye Adsorption

Liquid Phase Plasma Synthesis of Iron Oxide Nanoparticles on Nitrogen-Doped Activated Carbon Resulting in Nanocomposite for Supercapacitor Applications

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