High-Conductivity and High-Capacitance Electrospun Fibers for Supercapacitor Applications

Bhattacharya, S.; Roy, Indroneil; Tice, Aaron; Chapman, Caitlyn A.; Udangawa, Ranodhi N.; Chakrapani, Vidhya; Plawsky, Joel L.; Linhardt, Robert J.

doi:10.1021/acsami.9b21696

Cited by 64 publications

(43 citation statements)

References 49 publications

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“…The recovered mat was completely dry when collected and required no post collection treatment prior to using in a supercapacitor application. [21] The collected fiber mat exhibited a high level of alignment ( Figure 4(A,E)) and retained this alignment even after 18 h of continuous electrospinning. Fiber alignment was perpendicular to the direction of rotation of the mandrel.…”

Section: Resultsmentioning

confidence: 95%

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Enhanced mandrel design for electrospinning aligned fiber mats from low volatility solvents

Bhattacharya

Woodcock

Linhardt

et al. 2020

Polymer Engineering & Sci

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A cylindrical mandrel with axially aligned rods was designed and tested for the collection of electrospun fibers. Blended polyaniline/polyethylene oxide fibers were electrospun from a solution containing a nonvolatile solvent, m‐cresol. Camphorsulfonic acid served as the primary dopant and m‐cresol were used as the secondary dopant to enhance fiber conductivity. A smooth, rotating cylindrical mandrel collector failed to collect and align fibers and instead afforded a wet, sticky film. An eight‐rod, rotating cylindrical mandrel resulted in a dry, aligned fiber mat composed of 7–10 μm diameter fibers. Alignment was maintained for at least 18 h of continuous spinning and the resulting mat could be easily recovered from the mandrel. A simulation of the rotating system indicated that the efficient formation of dry, nonsticky, aligned fiber mat was facilitated by the high mass transfer coefficient associated with the use of corrugated rods. Experiments indicated that 6–10 rods were optimal avoiding sagging of the fibers at the low end and increased mas transfer resistance at the high end.

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Section: Resultsmentioning

confidence: 95%

“…The recovered mat was completely dry when collected and required no post collection treatment prior to using in a supercapacitor application. [ 21 ]…”

Section: Resultsmentioning

confidence: 99%

Enhanced mandrel design for electrospinning aligned fiber mats from low volatility solvents

Bhattacharya

Woodcock

Linhardt

et al. 2020

Polymer Engineering & Sci

Self Cite

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“…There are many other techniques deployed by scholars to fabricate supercapacitor electrodes that include screen printing [91,92], vacuum filtration [93,94], electroless deposition [95], electrospinning [96], blade coating [97], carbonization [98], sol-gel [99,100] etc.…”

Section: Spray Coatingmentioning

confidence: 99%

Supercapacitors Fabrication and Performance Evaluation Techniques

Khan¹,

Thekkekara²,

Waqar³

et al. 2022

Supercapacitors for the Next Generation

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Supercapacitors have surfaced as a promising technology to store electrical energy and bridge the gap between a conventional capacitor and a battery. This chapter reviews various fabrication practices deployed in the development of supercapacitor electrodes and devices. A broader insight is given on the numerous electrode fabrication techniques that include a detailed introduction, principles, pros and cons, and their specific applications to provide a holistic view. Key performance parameters of an energy storage device are explained in detail. A further discussion comprises several electrochemical measurement procedures that are used for the supercapacitor performance evaluation. The performance characterization section helps to determine the correct approach that should be utilized for supercapacitor device performance measurement and assessment.

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“…In the electro-polymerization process, a cyclic or constant voltage is applied to electrodes for synthesizing conductive polymers. ICPs have a broad range of conductivity (<10-10 5 S cm −1 [91][92][93] ), enabling to be applied to wearable electronics and optoelectronics, [94] and they exhibit more biocompatible feature compared to their counterparts made of metallic interfaces, thereby holding an impact in medicine, sports, and human-machine interfaces. [84,95] Moreover, ICPs exhibit different properties in conductivity, stability, and processability.…”

Section: Conductive Materialsmentioning

confidence: 99%

Carbon‐Based Nanomaterials and Sensing Tools for Wearable Health Monitoring Devices

Erdem

Derin

Shirejini

et al. 2021

Adv Materials Technologies

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In this manner, sensor technologies have garnered great attention in various fields, including biomedicine, [2][3][4][5] environmental monitoring, [6][7][8][9] smart devices, [10] wearable devices, [11] automobile manufacturing [12] since the semiconductor materials and circuits have been developed. In particular, biosensors are powerful and innovative analytical tools that incorporate biological receptors to recognize biological analytes through either physical or chemical transducers. Primarily, bio-receptors are responsible for identifying and capturing target analytes, and the transducer basically translates biological and chemical information into the detectable signals, which are eventually converted into the concentration of the analyte. [13,14] Considering gold standard methods, such as enzyme-linked immunosorbent assay (ELISA) [15] and polymerase chain reaction (PCR)-based strategies, [16] biosensors mostly hold crucial features, such as i) short assay time, [17] ii) affordable tools and reagents, [18] iii) portability, [19] and iv) facile use and minimum user interpretation. [20] Nowadays, the applications of biosensors have been leveraged by the advancements of portable and miniaturized platforms. In particular, over the past years, wearable health monitoring devices have notable impact on continuous and real-time monitoring of health parameters, thereby accelerating the deployment of biosensing strategies to daily lives. Besides, non-invasive and ease-of-collecting information supports the benefits of the wearable systems for enhancing the awareness of individuals and communities. [21][22][23] The special features of the mechanically flexible and stable wearable sensors include remarkable means, such as portability, comfortability, light-weight, non-invasive, and reliable performance. To put it simply, wearable sensors are readily attached to skin or organ surfaces through an adhesive tape [24] or microneedles, [25] and because of such easy integrations, several researchers have focused on developing wearable sensors for real-time health monitoring. A wearable sensor is basically composed of some vital elements, including a flexible base material attached to the skin or an organ, a signal transfer electrode, and a biorecognition element. Recently, researchers have concentrated on creating integrated sensors that are able to measure various parameters simultaneously, such as pressure, temperature,The healthcare system has a drastic paradigm shift from centralized care to home-based and self-monitoring strategies; aiming to reach more individuals, minimize workload in hospitals, and reduce healthcare-associated expenses. Particularly, wearable technologies are garnering considerable interest by tracking physiological parameters through motion and activities, and monitoring biochemical markers from sweat, saliva, and tears. Through their integrations with sensors, microfluidics, and wireless communication systems, they allow physicians, family members, or individuals to monitor multiple parameters withou...

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High-Conductivity and High-Capacitance Electrospun Fibers for Supercapacitor Applications

Cited by 64 publications

References 49 publications

Enhanced mandrel design for electrospinning aligned fiber mats from low volatility solvents

Enhanced mandrel design for electrospinning aligned fiber mats from low volatility solvents

Supercapacitors Fabrication and Performance Evaluation Techniques

Carbon‐Based Nanomaterials and Sensing Tools for Wearable Health Monitoring Devices

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