Anchoring effect of the partially reduced graphene oxide doped electrospun carbon nanoﬁbers on their electrochemical performances in vanadium ﬂow battery

Jing, Minghua; Xu, Zeyu; Fang, Dawei; Fan, Xinzhuang; Liu, Jianguo; Yan, Chuanwei

doi:10.1016/j.jpowsour.2019.04.003

Cited by 33 publications

(16 citation statements)

References 36 publications

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“…Therefore, electrospun fibres were generally separately prepared, then sandwiched between commercial felt and membrane layers [118,120,121]. Accompanied by the research on synthesis conditions, the joint functionality between the electrospun catalyst layer and metal catalysts has also been explored since 2015 [121][122][123]. The approach of mixing metal salt precursors into the polymer solution for electrospinning simplified two-steps of the metal crystallisation and carbon graphitisation into one.…”

Section: Overview the Historical Development Of Electrospun Materials In Redox Flow Batteriesmentioning

confidence: 99%

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Electrospinning as a route to advanced carbon fibre materials for selected low-temperature electrochemical devices: A review

Wen

Kok

Tafoya

et al. 2021

Journal of Energy Chemistry

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Section: Overview the Historical Development Of Electrospun Materials In Redox Flow Batteriesmentioning

confidence: 99%

“…Mn [126], Ti [121], Ni [127] and Zr [122], and carbon catalysts consisting of reduced graphene oxide (RGO) [123], graphite nanopowders [128] and carbon nanotubes [120]) has been studied…”

Section: Overview the Historical Development Of Electrospun Materials In Redox Flow Batteriesmentioning

confidence: 99%

Electrospinning as a route to advanced carbon fibre materials for selected low-temperature electrochemical devices: A review

Wen

Kok

Tafoya

et al. 2021

Journal of Energy Chemistry

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“…Graphene‐based nanomaterials such as graphene, [46–49] reduced graphene oxide (rGO) [50,51] and graphene oxide [52] have been widely applied in VRFBs attributed to outstanding conductivity, large specific surface area and excellent stability in strong acid solution. Composite electrode of CF with graphene deposited via in‐situ growth showed improved electrocatalytic activity and redox kinetics towards VO 2+ /VO 2 + ascribed to the increased specific surface area of CF and abundant sharp graphene edges [53] .…”

Section: Application Of Nanomaterials In Electrode For Aqueous Rfbsmentioning

confidence: 99%

Application of Nanomaterials in Aqueous Redox Flow Batteries

2021

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It is challenging to directly integrate renewable energies into the grid due to the inherent random and intermittent nature. Electrochemical energy storage techniques which can balance the intermittent production and smooth consumption are effective routes to fulfill the highly penetration of renewable energy sources. Among them, redox flow batteries (RFBs) are regarded as promising large‐scale energy storage and conversion devices attributed to the flexible design, long lifetime and high safety. Electrode and ion exchange membrane materials have crucial influences on cell performance of RFBs in terms of efficiency, rate performance, output power density and cyclability. Application of nanomaterials to obtain advanced electrode and membrane materials has prompt improvements of aqueous RFBs. This minireview includes the design, synthesis, and application of nanomaterials in preparation of both electrodes and ion exchange membranes for aqueous RFBs. Furthermore, current challenges and future prospects of application of nanomaterials in aqueous RFBs are outlined. We expect to provide a guide for the fabrication of advanced electrodes and membranes incorporation of nanomaterials towards high performance and low cost RFBs in future.

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“…[ 11–13 ] Wrinkled graphene has also been proved efficient for applications such as artificial muscles, sensors, vanadium flow battery, laser devices, materials for oil‐water separation or with negative Poisson's ratios and so on. [ 14–19 ]…”

Section: Introductionmentioning

confidence: 99%

Tuning the Wrinkles in 3D Graphene Architectures for Mass and Electron Transport

Lin

Yin

Pang

et al. 2020

Adv Materials Inter

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vapor deposition method [3] or on graphene oxide sheets [4] and exert influence on the performances of 3D graphene architectures (TDGAs) in their own way. It has been reported that deformations change local strain distributions, cause curvatures which may induce π-cloud re-hybridization, and modify the electronic structure, local charge distribution, dipole moment and optical properties of graphene. [5][6][7][8] They also alter the local chemical potential due to the formation of electron-hole puddles, [9] tribology properties, [3] thermal conductivity, [10] and mass-transfer behavior. [9] Surface corrugation on the graphene sheets has been confirmed an ideal morphology to be employed in supercapacitors and field emission transistor and give rise to the performances of devices. [11][12][13] Wrinkled graphene has also been proved efficient for applications such as artificial muscles, sensors, vanadium flow battery, laser devices, materials for oil-water separation or with negative Poisson's ratios and so on. [14][15][16][17][18][19] Although there have been lots of reports on graphene-based electrode materials for Li ion batteries, [4,[20][21][22][23] few researches have focused on graphene wrinkling in the context of performances such as mass transport properties and electronics. [24] Consequently, the effects of wrinkles and crumples on performances are not adequately evaluated and elucidated, partly because of multiscale and polybasic application demands. For example, It's reported that the high specific surface area (SSA) of graphene can only be affected by wrinkles up to 2%, regardless of loading conditions, geometry and defects as found by molecular dynamics and continuum mechanics-based simulations in single-layer graphene, but the SSAs of TDGAs may vary in a wide range and are usually far lower than the theoretical SSA of graphene. [3] This means that the conclusions drawn from single-or few-layer graphene adopted in many researches of wrinkles on the properties and structures of materials may be contradict with that of TDGAs. Thus, the influences of graphene wrinkles exposed on performances of TDGAs and TDGAs nanocomposites are of great necessity to be fully evaluated because TGDAs have great potential in applications such as catalysis, sensors, energy storage and conversion. [20,[25][26][27][28] Graphene oxide is a precursor used more widely for construction of TDGAs in view of the numerous oxygen-containing Due to the high in-plane Young's modulus and defects, graphene is prone to deformations such as wrinkles. The effects of wrinkles on the mass and electron transport properties need to be elucidated as graphene has great potential in applications such as catalysis, sensors, energy storage, and conversion. In this paper, the wrinkling of graphene oxide sheets is dominated by the mass ratio of graphene oxide to N,N′-dicyclohexylcarbodiimide (DCC) to fabricate 3D graphene architectures (TDGAs) with tunable porosity. This template-free DCC tactic of regulating the wrinkling procedure forms hierarchical po...

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Anchoring effect of the partially reduced graphene oxide doped electrospun carbon nanoﬁbers on their electrochemical performances in vanadium ﬂow battery

Cited by 33 publications

References 36 publications

Electrospinning as a route to advanced carbon fibre materials for selected low-temperature electrochemical devices: A review

Electrospinning as a route to advanced carbon fibre materials for selected low-temperature electrochemical devices: A review

Application of Nanomaterials in Aqueous Redox Flow Batteries

Tuning the Wrinkles in 3D Graphene Architectures for Mass and Electron Transport

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