Suppressing charge trapping effect in ambipolar conducting polymer with vertically standing graphene as the composite electrode for high performance supercapacitor

Zhang, Huanhuan; Tang, Xiaohui; Zhao, Duokai; Zheng, Nan; Huang, Lianggang; Sun, Taolin; Gu, Cheng; Ma, Yan

doi:10.1016/j.ensm.2020.04.024

Cited by 24 publications

(14 citation statements)

References 34 publications

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“…Currently, thanks to the excellent electrochemical and mechanical properties, graphene or reduced graphene oxide (RGO) have received ongoing attention, and various graphene‐based free‐standing electrodes and flexible all‐solid‐state supercapacitors have been developed 24‐30 . A previous work of our group has shown the large‐scale fabrication of graphene oxide/cellulose paper by traditional papermaking procedure 31 .…”

Section: Introductionmentioning

confidence: 99%

High performance fully paper‐based all‐solid‐state supercapacitor fabricated by a papermaking process with silver nanoparticles and reduced graphene oxide‐modified pulp fibers

Huang

Yang

Chen

et al. 2021

EcoMat

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Herein, a fully paper‐based all‐solid‐state supercapacitor with functionalized cellulose paper as electrodes, carboxymethyl cellulose gel as solid electrolyte and cellulose paper as separator was fabricated. The electrode was fabricated by a conventional papermaking process with silver‐modified fibers and graphene oxide (GO)‐modified fibers followed by reduction of GO. The Ag‐modified fibers and GO‐modified fibers were obtained by in situ growth of Ag nanoparticles and self‐assembly of GO sheets on cellulose fibers, respectively. Ag‐modified fibers act as a flexible current collector with rich three‐dimensional interconnected electron transport pathways to make the reduced GO‐modified fibers as electrode materials to achieve high conductivity (1.93 Ω sq−1) and high‐rate capability. Simple drying can reduce 40% weight of the supercapacitor to facilitate transportation and storage, and its capacitance efficiency can be recovered by wetting when needed. This work opens up a new way of developing cheap, green and high performance full‐paper flexible electronics by conventional papermaking process.

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Section: Introductionmentioning

confidence: 99%

High performance fully paper‐based all‐solid‐state supercapacitor fabricated by a papermaking process with silver nanoparticles and reduced graphene oxide‐modified pulp fibers

Huang

Yang

Chen

et al. 2021

EcoMat

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“…The onset potential of thiophene oxidation was 1.29 V. The reduction peaks between 0.3 and −0.4 V were attributed to the charge trapping effect of polythiophene during the n-doping process. 35,36 The current rise around −0.5 V was caused by the reduction of PBI core. 37 To maintain the independence of the PBI core, the deposition potential range was determined to be 0.23 to 1.38 V, as Figure 1b shows.…”

Section: Resultsmentioning

confidence: 99%

A Cathodic Electrochromic Material Based on Thick Perylene Bisimide Film with High Optical Contrast and High Stability

Wang

et al. 2022

CCS Chem

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Cathodic electrochromic materials realized by n-type doping of conducting polymers are scarce. Even with limited cases reported in the literature, long-term stability is an urgent problem to be solved. Herein, we report a high performance and stable cathodic electrochromic material, poly(Th-Cl-PBI), based on a perylene bisimide function core. Due to its high electropolymerization efficiency and low steric hindrance of thiophene groups, perylene bisimide, which generally does not dissolve and form film easily, can grow to the sufficient thickness of 350 nm for wide-range spectral modulation and large-capacity energy storage. The optical contrast of optimized film with a thickness of 240 nm reaches as high as 69.1% at 520 nm, 94.1% at 760 nm, and 95.7% at 680 nm. Theoretical simulation based on the Lambert-Beer law also verifies this optical contrast dependent on film thickness. Besides, during the transition between the neutral state and radical anion state, it maintains 90.2% of the electrochemical activity after 4000 cycles, and the transmittance spectrum remains stable after 2000 cycles. The cation size effect on cathodic electrochromic process and cyclic stability has been investigated.

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“…通过对PECVD过程中生长参数(等离子源、气体组成、温度、生长时间等)的调控, 可以制备不同形貌的3DVAG. PECVD采用各种等离子体源, 如射频 [21] 、微波 [23] 和直流放电 [46] , 已经成功地用于3DVAG的生长. 碳前驱体对最终的石墨烯形貌和结构有很大的影响, [47,48] .…”

Section: 双向冷冻法单向冷冻制备的3dvag凝胶一般都是蜂窝状的垂unclassified

“…Zhang等人 [21] 将3DVAG与双极性导电聚合物(CP)复合, 以提高电导率并抑制电荷陷阱效应. 在传统CP@GP复合电极中, 聚合物沿基底平面聚集堆叠不可避免地阻断了传输途径, 增加了电解质与基底之间的距离.…”

Section: Dvag复合材料作为赝电容电极unclassified

“…+ CP、GP + CP三种电极的长循环稳定性对比 ) and EIS spectra of three graphene electrodes [4] ; (f) impedance phase angle versus frequency for PECVD-3DVAG [59] ; (g) long term cycling performance of 3DVAG, 3DVAG + CP and GP + CP [21] 琴的化学膨胀石墨负载Ni(OH) 、LDH-NF@VG [33] 、VOPO 4 -VrGO [40] 、RuO 2 /VG [64] 、Fe 2 O 3 / VGN [65] 、MnO 2 /VGN [65] 、Co 3 O 4 /VAGN [66] 等3DVAG负载赝电容活性物质的复合电极用于超级电容器也有报道(表S1).…”

Section: Dvag复合材料作为赝电容电极mentioning

confidence: 99%

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Recent progress on the preparation of three-dimensional vertically aligned graphene and its applications insupercapacitors

Zhang¹,

Zhang²,

Feng³

et al. 2021

Chin. Sci. Bull.

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Suppressing charge trapping effect in ambipolar conducting polymer with vertically standing graphene as the composite electrode for high performance supercapacitor

Cited by 24 publications

References 34 publications

High performance fully paper‐based all‐solid‐state supercapacitor fabricated by a papermaking process with silver nanoparticles and reduced graphene oxide‐modified pulp fibers

High performance fully paper‐based all‐solid‐state supercapacitor fabricated by a papermaking process with silver nanoparticles and reduced graphene oxide‐modified pulp fibers

A Cathodic Electrochromic Material Based on Thick Perylene Bisimide Film with High Optical Contrast and High Stability

Recent progress on the preparation of three-dimensional vertically aligned graphene and its applications insupercapacitors

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