Nylon-Graphene Composite Nonwovens as Monolithic Conductive or Capacitive Fabrics

Qin, Pan; Shim, Eunkyoung; Pourdeyhimi, Behnam; Gao, Wei

doi:10.1021/acsami.7b00471

Cited by 41 publications

(35 citation statements)

References 51 publications

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“…Figure 8b is a plot of the specific capacitance vs scan rate −1/2 and it does not seem to follow a linear trend, starting from 2 mV s −1 to 50 mV s −1 . At the low scan rate, the capacitance is almost independent of the scan rate, indicating that the electrolyte diffusion is not the limiting factor for charge storage owing to the special structure and heteroatoms functional groups of NCFs [57]. NCFs exhibits a 71.4% capacitance retention with the increasing scan rate from 10 mV s −1 to 50 mV s −1 , which is comparable to others [29].…”

Section: Electrochemical Studymentioning

confidence: 49%

Nitrogen-Enriched Carbon Nanofibers Derived from Polyaniline and Their Capacitive Properties

Gao

Ying

et al. 2018

Applied Sciences

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Nitrogen-doped carbon materials derived from N-containing conducting polymer have attracted significant attention due to their special electrochemical properties in the past two decades. Novel nitrogen-enriched carbon nanofibers (NCFs) have been prepared by one-step carbonization of p-toluene sulfonic acid (P-TSA) doped polyaniline (PANI) nanofibers, which are successfully synthesized via the rapid mixing oxidative polymerization at room temperature. NCFs with diameters ranging from 100 nm to 150 nm possess a highly specific surface area of 915 m 2 g −1 and a relatively rich nitrogen content of 7.59 at %. Electrochemical measurements demonstrate that NCFs have high specific capacitance (172 F g −1 , 2 mV s −1 ) and satisfactory cycling stability (89% capacitance retention after 5000 cycles). The outstanding properties affirm that NCFs can be promising candidates for supercapacitor electrode materials. Interestingly, the carbonization of PANI opens the possibility to tailor the morphology of resulting nitrogen-enriched carbon materials by controlling the reaction conditions of PANI synthesis. products of PANI (15 wt % N, 79 wt % C) have been successfully employed in other articles as electrode materials [29][30][31][32][33][34][35][36]. However, most of the present reported PANI-derived carbon materials are irregular and agglomerate. Furthermore, the PANI-derived carbon materials by one-step carbonization usually have a low specific surface area while the chemical activation process is complex and increases costs. Recently, one-dimensional (1D) nanostructured PANI, such as nanofibers, nanotubes, nanowires, and nanorods, have attracted intensive attention for their unique structure, properties, and new potential applications [37][38][39][40][41][42]. Various methods, such as hard or soft template [32,39], interfacial polymerization [40], and rapid mixing polymerization, have been used to tailor the morphology of the products in the chemical oxidative polymerization. Compared with other methods, the rapid mixing polymerization method is the most common non-template route to produce PANI nanofibers owing to its simplicity, cost effectiveness, being environmental friendly, and pure production [43][44][45][46][47].Furthermore, the molecular structure and functional groups of doped acids also influence the morphology and structure of resulting PANI particles [28,41,[47][48][49][50][51][52]. Chutia's work investigates the effect of organic camphorsulfonic acid (CSA) and inorganic hydrochloric acid (HCl) on the structures and conductivity of polyaniline, and the discovery indicates that PANI nanorods doped with CSA produce more uniform and aligned structures [50]. Organosulfonic acid possessing long alkyl-chain sulfonic acids, such as p-toluenesulfonic acid (P-TSA), β-naphtalenesulfonic acid (NSA), camphorsulfonic acid (CSA), and dodecyl benzene sulfonic acid (DBSA), have already been explored by some researchers [49,51]. P-TSA (the molecular structural formula is p-CH 3 C 6 H 4 SO 3 H) is a non-oxidizing organic acid, so...

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Section: Electrochemical Studymentioning

confidence: 49%

Nitrogen-Enriched Carbon Nanofibers Derived from Polyaniline and Their Capacitive Properties

Gao

Ying

et al. 2018

Applied Sciences

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Section: Graphene Modified Textile Composites In Relevant To the Propmentioning

confidence: 99%

“…In most studies of graphene/nylon composites, the projected application was electrical conductivity‐based supercapacitors and sensors . Nonwoven nylons are normally used for synthesis of conductive fabrics 144a. However, some research produced graphene/nylon composites with improved mechanical and thermal properties .…”

Section: Graphene Modified Textile Composites In Relevant To the Propmentioning

confidence: 99%

Graphene Modified Multifunctional Personal Protective Clothing

Bhattacharjee

Joshi

Chughtai

et al. 2019

Adv Materials Inter

167

134

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Personal protective clothing is intended to protect the wearer from various hazards (mechanical, biological, chemical, thermal, radiological, etc.) and inhospitable environmental conditions that may cause harm or even death. There are various types of personal protective clothing, manufactured with different materials based on hazards and end user requirements. Conventional protective clothing has impediments such as high weight, bulky nature, lack of mobility, heat stress, low heat dissipation, high physical stress, diminishing dexterity, diminishing scope of vision, lack of breathability, and reduced protection against pathogens and hazards. By virtue of the superlative properties of graphene, fabrics modified with this material can be an effective means to overcome these limitations and to improve properties such as mechanical strength, antibacterial activity, flame resistance, conductivity, and UV resistance. The limitations of conventional personal protective equipment are discussed, followed by necessary measures which might be taken to improve personal protective equipment (PPE), the unique properties of graphene, methods of graphene incorporation in fabrics, and the current research status and potential of graphene‐modified performance textiles relevant to PPE.

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“…In addition, PA6 membranes always show high uptake to organic liquid electrolytes for abundant amide groups in the backbone of the macromolecule [ 10 ]. However, the severe dimension shrinkage of wet nylon-based separators (the nylon-based separators saturated by the carbonate-based organic liquid electrolytes) holds back their wide application in energy storage devices [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Nylon-Based Composite Gel Membrane Fabricated via Sequential Layer-By-Layer Electrospinning for Rechargeable Lithium Batteries with High Performance

et al. 2020

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With the raw materials of poly(vinylidene-co-hexafluoropropylene) (P(VDF-HFP)) and polyamide 6 (PA6, nylon 6), a sandwich-structured composite membrane, PA6/P(VDF-HFP)/PA6, is fabricated via sequential layer-by-layer electrospinning. The nylon-based composite exhibits high absorption to organic liquid electrolyte (270 wt%) owing to its high porosity (90.35%), good mechanical property (17.11 MPa), and outstanding shut-down behavior from approximately 145 to 230 °C. Moreover, the dimensional shrink of a wet PA6 porous membrane immersed into liquid electrolyte is cured due to the existence of the P(VDF-HFP) middle layer. After swelling by the LiPF6-based organic liquid electrolyte, the obtained PA6/P(VDF-HFP)/PA6-based gel polymer electrolytes (GPE) shows high ionic conductivity at room temperature (4.2 mS cm−1), a wide electrochemical stable window (4.8 V), and low activation energy for Li+ ion conduction (4.68 kJ mol−1). Benefiting from the precise porosity structure made of the interlaced electrospinning nanofibers and the superior physicochemical properties of the nylon-based composite GPE, the reversible Li+ ion dissolution/deposition behaviors between the GPE and Li anode are successfully realized with the Li/Li symmetrical cells (current density: 1.0 mA cm−2; areal capacity: 1.0 mAh cm−2) proceeding over 400 h at a polarization voltage of no more than 70 mV. Furthermore, the nylon-based composite GPE in assembled Li/LiFePO4 cells displays good electrochemical stability, high discharge capacity, good cycle durability, and high rate capability. This research provides a new strategy to fabricate gel polymer electrolytes via the electrospinning technique for rechargeable lithium batteries with good electrochemical performance, high security, and low cost.

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Nylon-Graphene Composite Nonwovens as Monolithic Conductive or Capacitive Fabrics

Cited by 41 publications

References 51 publications

Nitrogen-Enriched Carbon Nanofibers Derived from Polyaniline and Their Capacitive Properties

Nitrogen-Enriched Carbon Nanofibers Derived from Polyaniline and Their Capacitive Properties

Graphene Modified Multifunctional Personal Protective Clothing

Nylon-Based Composite Gel Membrane Fabricated via Sequential Layer-By-Layer Electrospinning for Rechargeable Lithium Batteries with High Performance

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