Recent developments in centrifugally spun composite fibers and their performance as anode materials for lithium-ion and sodium-ion batteries

Chavez, Roberto Orrostieta; Lodge, Timothy P.; Alcoutlabi, Mataz

doi:10.1016/j.mseb.2020.115024

Cited by 18 publications

(7 citation statements)

References 151 publications

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“…Adequate centrifugal forces were applied to the precursor solution to exceed the surface tension of the polymer jets and stretch out the fibers. 30,31,41,62,63 Centrifugal spinning was performed based at rotational speeds of 5000 rpm for PEO aqueous solution and 7500 rpm for PVP solution and at a relative humidity of 46%. The fibers were then collected in a wellarranged eight uniform spacious vertical collectors while the collector was set at 12 cm from the spinneret.…”

Section: Preparation Of Polymer/ Nanoparticles Composite Fibersmentioning

confidence: 99%

“…14,40 Several polymer systems have been recently centrifugally spun into fibers. 41,42 Likewise, polyethylene oxide (PEO) and polyvinylpyrrolidone (PVP) polymers have been forcespun to generate fibers for various applications. Both polymers are soluble in water and/or other solvents, 43 biodegradable, biocompatible, 6 physiologically acceptable polymers and nontoxic for living organisms.…”

Section: Introductionmentioning

confidence: 99%

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Forcespun polyvinylpyrrolidone/copper and polyethylene oxide/copper composite fibers and their use as antibacterial agents

Hasan

Gonzalez

Munoz

et al. 2021

J of Applied Polymer Sci

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Copper nanoparticles (CuNPs) embedded in polyvinylpyrrolidone (PVP) and polyethylene oxide (PEO) fiber-matrices were prepared through centrifugal spinning of PVP/ethanol and PEO/aqueous solutions, respectively. The prime focus of the current study is to investigate the antibacterial activity of composite fibers against Escherichia coli (E. coli) and Bacillus cereus (B. cereus) bacteria. During the fiber formation, the centrifugal spinning parameters such as spinneret rotational speed, spinneret to collector distance, and relative humidity were carefully chosen to obtain long and continuous fibers. The structural and morphological analyses of both composite fibers were investigated using scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and thermogravimetric analysis. In the antibacterial test, PVP/Cu and PEO/Cu composite fibrous membranes exhibited inhibition efficiency of 99.98% and 99.99% against E. coli and B. cereus bacteria, respectively. Basically, CuNPs were well embedded in the fibrous membrane at the nanoscale level, which facilitated the inhibition of bacterial functions through the inactivation of the chemical structure of the cells. Such an effective antibacterial agent obtained from forcespun composite fibers could be promising candidates for biomedical applications.

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Section: Preparation Of Polymer/ Nanoparticles Composite Fibersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Forcespun polyvinylpyrrolidone/copper and polyethylene oxide/copper composite fibers and their use as antibacterial agents

Hasan

Gonzalez

Munoz

et al. 2021

J of Applied Polymer Sci

Self Cite

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show abstract

“…High centrifugal pressures during rotation allow the polymer to overcome its natural surface tension and viscosity leading to the generation of fibers. 39,40 The high-throughput nature of centrifugal spinning process also finds wide application in the development of anode materials, [41][42][43] photocatalytic water splitting, 44 wherein improvement in the performance compared to conventional electrospinning was observed.…”

Section: Introductionmentioning

confidence: 99%

Large‐scale synthesis of centrifugally spun tantalum oxynitride fiber electrocatalysts for hydrogen evolution reaction

Mukkavilli

Saxena

et al. 2023

J Am Ceram Soc.

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Tantalum oxynitride (TaOxN1−x) fibers were synthesized and evaluated for their electrocatalytic hydrogen activity using an in‐house developed centrifugal spinning setup. By tailoring the composition of the spinning solution and optimizing collector distance and rotation speed of the spinneret, bead‐free TaOxN1−x fibers with a diameter of 800 nm were obtained. The fibers were structurally characterized through phase and elemental analysis, confirming the formation of monoclinic TaOxN1−x with clear splitting of the X‐ray photoelectron spectroscopy peaks indicating Ta was in +5 oxidation state. The resulting oxynitride fibers exhibited superior electrocatalytic performance with low overpotentials (250 mV) to generate 10 mA/cm2 compared to Ta2O5 oxide fibers. Interestingly, the enhanced activity of oxynitride fibers was observed to be suppressed in basic medium due to the high oxophilicity of tantalum ions and a negative Gibbs adsorption‐free energy, leading to poisoning of the active sites. This work demonstrates a facile pathway for the fabrication of high‐performance electrocatalysts, based on TaOxN1−x fibers, from a cost‐effective and energy‐efficient centrifugal spinning technique.

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“…Subsequently, more scholars focused on the electrical effect of the nanofibers. Orrostieta et al (2021) fabricated the composite nanofibers as the anode material of lithium ion and sodium ion batteries and analyzed their morphology and structure. Also, some researchers had combined centrifugal spinning with other techniques to prepare fibers with a smaller diameter distribution ( Fang et al, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Orthogonal Optimization Research on Various Nozzles of High-Speed Centrifugal Spinning

Zhang

Liu

et al. 2022

Front. Bioeng. Biotechnol.

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High-speed centrifugal spinning is a burgeoning method of fabricating nanofibers by use of the centrifugal force field. This article studied four different spinning nozzles, which were called stepped nozzle, conical-straight nozzle, conical nozzle, and curved-tube nozzle, to explore the optimal nozzle structures for fabricating nanofibers. According to the principle of centrifugal spinning, the spinning solution flow states within the four nozzles were analyzed, and the solution outlet velocity model was established. Then, the structural parameters of the four kinds of nozzles were optimized with the spinning solution outlet velocity as the test index by combining the orthogonal test and numerical simulation. Based on the orthogonal test results, the influence of nozzle structure parameters on the solution outlet velocity was analyzed, and the best combination of parameters of the centrifugal spinning nozzle structure was obtained. Subsequently, the four kinds of nozzles were used to fabricate nanofibers in the laboratory, under different solution concentration, motor rotation speed, and outlet diameters. Finally, the scanning electron microscope (SEM) was applied to observe the morphology and surface quality of nanofibers. It was found that the surface of nanofibers manufactured by the conical-straight nozzle and curved-tube nozzle was smoother than that by stepped and conical nozzles, and the fiber diameter by the conical-straight nozzle was minimal, followed by curved-tube nozzles, stepped nozzles, and conical nozzles in the diameter distribution of nanofibers.

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Recent developments in centrifugally spun composite fibers and their performance as anode materials for lithium-ion and sodium-ion batteries

Cited by 18 publications

References 151 publications

Forcespun polyvinylpyrrolidone/copper and polyethylene oxide/copper composite fibers and their use as antibacterial agents

Forcespun polyvinylpyrrolidone/copper and polyethylene oxide/copper composite fibers and their use as antibacterial agents

Large‐scale synthesis of centrifugally spun tantalum oxynitride fiber electrocatalysts for hydrogen evolution reaction

Orthogonal Optimization Research on Various Nozzles of High-Speed Centrifugal Spinning

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