Hierarchically structured carbon nanofiber–silsesquioxane–polyaniline nanohybrids for flexible supercapacitor electrodes

Lin, Weihong; Xu, Kai; Peng, Jun; Xing, Yuxiu; Gao, Shuxi; Ren, Yuanyuan; Chen, Mingcai

doi:10.1039/c4ta06806h

Cited by 28 publications

(23 citation statements)

References 70 publications

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“…The incorporation of SSQs onto the polymer led to a porous structure with loosely hyperbranched PANI nanobundles. The high conductivity, combined with the porous network, makes it promising for supercapacitor electrode applications …”

Section: Advanced Applicationsmentioning

confidence: 99%

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Silsesquioxane‐Containing Hybrid Nanomaterials: Fascinating Platforms for Advanced Applications

Dong

2019

Macro Chemistry & Physics

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Silsesquioxanes (SSQs), with the general formula, (RSiO1.5)n—where R stands for an organic group, such as alkyl, aryl, alkoxy, or H—are a type of molecular‐level organic/inorganic hybrid silica‐based material. These materials contain reactive or nonreactive organic moieties as well as inorganic Si–O–Si frameworks. In the past few years, extensive efforts have been made using SSQs to construct multifunctional nanocomposites with suitable properties for a range of applications. In this review, the recent various applications of SSQ‐containing hybrid materials are discussed, in addition to updates of the nanocomposite applications. Various physical structures and chemical reactions in SSQ‐based hybrid nanomaterials are emphasized with regard to applications in the field of polymer nanocomposites, catalysts, adsorption, sensors, and biomedicine. This review focuses on results reported in the recent five years (2013–2018).

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Section: Advanced Applicationsmentioning

confidence: 99%

“…Schematic design for the preparation of CNFS–PANI hybrid nanocomposites by functionalizing CNF with OASQ through amidation followed by a reaction with aniline to form a hyperbranched PANI‐grafted CNF. Reproduced with permission . Copyright 2015, The Royal Society of Chemistry.…”

Section: Advanced Applicationsmentioning

confidence: 99%

Silsesquioxane‐Containing Hybrid Nanomaterials: Fascinating Platforms for Advanced Applications

Dong

2019

Macro Chemistry & Physics

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“…[172] Xu et al also built a 3D flexible CNF film using the vacuum-filtrationinduced self-assembly with hyperbranched polyaniline-grafted CNFs. [173] Manthiram et al prepared CNF/activated carbon (CNF/AC) composite film in this vacuum-filtration process. [174] This strategy provides a feasible way for employing one dimensional carbon materials to construct 3D hybrid nanostructures Reproduced with permission.…”

Section: Assembly Methodsmentioning

confidence: 99%

Macroscopic‐Scale Three‐Dimensional Carbon Nanofiber Architectures for Electrochemical Energy Storage Devices

Chen

Feng

Liang

et al. 2017

Advanced Energy Materials

170

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Therefore, it is necessary to develop highperformance energy storage devices for facilitating the effective utilization of intermittent renewable energy sources. [7][8][9] Among varieties of electrochemical energy storage devices, supercapacitors (known as electrochemical capacitors) [10,11] and some rechargeable batteries (lithium-ion batteries (LIBs), lithiumsulfur (Li-S) batteries, and metal-O 2 batteries) [12][13][14][15] are at the frontier, because they can transport high power and store high energy. Nowadays, they play an indispensable role in our daily life by powering numerous portable electronic devices (e.g., cell phones and laptops), hybrid electric vehicles, and large-scale electrical grids. [16][17][18][19] It is well accepted that the performance of energy storage devices mainly depended on their electrode materials. [20,21] Owing to the advantages of large surface area, light weight, good electrical conductivity, and high thermal/ chemical stability, carbon materials have been considered as the most important electrode materials of supercapacitors and rechargeable batteries [8,20,21] Hence, various nanostructured carbons, such as carbon/graphene quantum dots, [22,23] carbon nanofiber (CNFs), [16,24] carbon nanotubes (CNTs), [13,25] graphene [26][27][28][29][30][31][32] carbon nanosheets, [33,34] 3D carbon nanostructures, [35][36][37] and porous carbon, [38,39] have gained great attention. Among these materials, 3D carbon nanomaterials have some advantages. The interlinked architecture not only shortens transport distances for ions in the well-interconnected wall structure, but also provides a continuous pathway endowing for the fast electron transport. [40] Moreover, the structural interconnectivities guarantee higher electrical conductivity and better mechanical stability. [36,41] Thereby, the design and fabrication of various 3D carbonbased nanostructures, including carbon nanotube networks, graphene gels, graphene foams, and 3D CNFs, have been intensively investigated.Over the past few years, there are many reviews summarizing the progress of fabricating 3D carbon-based nanomaterials. For example, Schneider et al. overviewed the recent advance in the synthesis of 3D arranged carbon nanotube architectures. [42] Li et al. reviewed the carbon-based 3D nanostructures for supercapacitors. [36] Cao and Gui et al. comprehensively reviewed the recent progress in synthesis, properties, and energy applications of CNT sponges, aerogels, and hierarchical composites. [43] The development of high-performance electrochemical energy storage devices is critical for addressing energy crises and environmental pollution.

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“…It is noted that PANi in a composite electrode not only possesses increased electrochemically active surface area for efficient pseudocapacitive reaction, but also exhibits a better rate capability because of the high conductivity of the substrate. Carbon nanotubes (CNTs), carbon nanofibers (CNFs), porous carbon, and hierarchical porous graphene have been utilized as substrates on which to grow PANi for enhanced electrochemical performance.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline Nanorods Grown on Hollow Carbon Fibers as High‐Performance Supercapacitor Electrodes

Gao

Zang

et al. 2016

ChemElectroChem

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Hollow carbon fibers (aCFs) with a high specific surface area are applied as conductive scaffolds for polyaniline (PANi) growth. aCFs oxidized by HNO3 treatment have more surface negative charges, which interact with protonated aniline molecules in acidic media. The subsequent chemical oxidative polymerization assisted by (NH4)2S2O8 yields aCF–PANi composites with PANi nanorod arrays strongly coupled on both the external and internal surfaces of the aCFs. Serving as binder‐free supercapacitor electrode, the aCF–PANi composite with 31 wt % PANi exhibits a specific capacitance of 364 F g−1, and retains 70 % of this value at 20 A g−1. More interestingly, it exhibits excellent cycling stability with 92.5 % capacitance retention, and outstanding reversibility with 98.6 % coulombic efficiency, even after 5000 continuous cycles; this performance is far superior to that of both aCF and PANi electrodes. The strongly coupled PANi arrays on the aCF surface greatly reduce the interface resistance, thus facilitating both ion and electron transport for enhanced capacitive performance.

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Hierarchically structured carbon nanofiber–silsesquioxane–polyaniline nanohybrids for flexible supercapacitor electrodes

Abstract: 3D Hierarchically structured carbon nanofiber–silsesquioxane–polyaniline nanohybrids produced through chemical covalent binding showed high conductivity and excellent supercapacitive capacitance performance for free-binder flexible electrodes.

Cited by 28 publications

References 70 publications

Silsesquioxane‐Containing Hybrid Nanomaterials: Fascinating Platforms for Advanced Applications

Silsesquioxane‐Containing Hybrid Nanomaterials: Fascinating Platforms for Advanced Applications

Macroscopic‐Scale Three‐Dimensional Carbon Nanofiber Architectures for Electrochemical Energy Storage Devices

Polyaniline Nanorods Grown on Hollow Carbon Fibers as High‐Performance Supercapacitor Electrodes

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