Structural, morphological, optical, and thermal properties of electrospun PbS/PVP-PEO nanofibers

Sharma, Deep Shikha; Patel, Nidhi; Panjabi, Sanjay; Patel, Vaibhav K.

doi:10.1016/j.ceramint.2022.11.038

Cited by 20 publications

(6 citation statements)

References 29 publications

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“…The resulting FTIR spectrum exhibits significant changes, most notably the disappearance of the CN peak at 2243 cm –1 , indicating the successful carbonization of the PAN–PANI blend. Additionally, a distinct peak emerges at 475 cm –1 , corresponding to the characteristic vibrations of PbS, confirming the successful incorporation of PbS within the CNFs matrix. The absorption band characteristic of Pb–S can be observed at 472 cm –1 , as illustrated in Figure S3, which showcases the pristine PbS spectrum.…”

Section: Resultsmentioning

confidence: 62%

“…It also has a significantly wide Bohr exciton radius of 18 nm. 38 PbS exhibits a high absorption coefficient of 1.5 × 10 5 , 39−41 contributing to its inherent optoelectronic prowess. The morphological diversity of PbS NPs spans a gamut of forms, encompassing micro-to nanoscale cubes, rods, wires, stars, hexapods, and other variations dictated by the intricacies of precursor selection and synthesis methodologies.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The systematic evolution of lead sulfide (PbS) NPs in terms of dimensions and morphologies has been meticulously pursued to amplify their optical and electrical performance. − PbS is classified as a metal sulfide and has a small bandgap of 0.41 eV. It also has a significantly wide Bohr exciton radius of 18 nm . PbS exhibits a high absorption coefficient of 1.5 × 10 5 , − contributing to its inherent optoelectronic prowess.…”

Section: Introductionmentioning

confidence: 99%

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Electrospun PbS/PAN–PANI Carbon Nanofibers Decorated on Carbon Cloth as Pseudo-Electrochemical Capacitor Material

Sharma,

Patel,

Bariya

et al. 2024

ACS Appl. Electron. Mater.

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nanofibers stand out as a promising candidate for energy storage applications, particularly in the domain of supercapacitors. Their inherent advantages, including a high surface area, enhanced charge transport capabilities, and improved electrochemical performance, make them an intriguing focus of investigation. In this study, we present a thorough exploration of the synthesis, characterization, and application of PbS nanoparticles incorporated within the electrospun matrix of a polyacrylonitrile−polyaniline (PAN−PANI) blend. The subsequent carbonization process at 700 °C yields carbon nanofibers (CNFs) with tailored structural and electrochemical attributes. The resulting carbonized PbS/PAN−PANI nanofibers (NFs) exhibit exceptional electrochemical properties, including high specific capacitance, specific energy, and specific power, making them promising candidates for supercapacitor applications. Notably, the application of these CNFs in a two-electrode symmetrical supercapacitor device yielded a specific capacitance of 145.6 F g −1 , as determined from galvanostatic charge−discharge (GCD) measurements at a current density of 0.5 A g −1 in a 6 M KOH electrolyte. Furthermore, this device demonstrated remarkable capacitive retention, maintaining 92.45% of its initial capacitance after 10 000 charge−discharge cycles at 1 A g −1 . These outcomes not only affirm the robustness of the fabrication and optimization methodologies but also accentuate the potential of PbS/PAN−PANI CNFs as electrodes for high-performance supercapacitor systems, particularly highlighting their outstanding pseudocapacitive behavior and stability in alkaline electrolytes.

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Section: Resultsmentioning

confidence: 62%

Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electrospun PbS/PAN–PANI Carbon Nanofibers Decorated on Carbon Cloth as Pseudo-Electrochemical Capacitor Material

Sharma,

Patel,

Bariya

et al. 2024

ACS Appl. Electron. Mater.

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“…Before imaging, suitable gold sputtering was performed on the sample. [26] The ImageJ software (NIH, USA open source) was utilized for processing nanofiber image diameter, expressed as mean ± SD. This was done randomly through the images obtained.…”

Section: Characterization Of Nanofiber Scaffolds Morphologymentioning

confidence: 99%

“…The scaffolds were optimized by carefully adjusting operational parameters such as polymer concentration, distance from needle to collector, required voltage, and solution ejection rate. [26] SEM analysis revealed that individually prepared nanofibers using CS or PVA exhibited a disordered structure with rough surfaces. However, a significant improvement in structural features was observed when CS (1% w/v) was blended with PVA (10% w/v) at a 1:3 ratio.…”

Section: Surface Morphology Of Nanofiber Scaffoldsmentioning

confidence: 99%

Quality-by-Design Optimization of Electrospinning Parameters to Formulate Scaffolds for Topical Inflammatory Disease Management <i>via</i> Drug Repurposing

Alka,

Saraf

2024

Int. J. Pharm. Sci. Drug Res.

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This study investigates the fabrication of chitosan (CS)/polyvinyl alcohol (PVA) blend nanofibers via electrospinning, aiming to create nanofibers with enhanced properties for broad applications. The research focuses on optimizing electrospinning parameters to reduce bead formation and achieve uniform nanofiber morphology. A detailed experimental design, employing a nineteen-point plan developed with Design-Expert software, examined variables such as polymer concentration, distance from the needle to the collector, the required voltage, and the rate at which solution was ejected from the needle. Morphological characteristics of the nanofibers were analyzed using advanced microscopy, complemented by drug release and wound healing assessments. The optimal electrospinning conditions were determined to be a 1:3 CS/PVA solution concentration ratio, an 8 cm needle-to-collector distance, a 20 kV applied voltage, and a 1 mL/hour flow rate. Scanning electron microscopy revealed uniform nanofibers with diameters between 100 to 250 nm, devoid of bead defects. In-vitro analysis demonstrated a sustained release profile of azilsartan (AZL), while in-vivo studies on rats indicated enhanced wound healing, corroborated by histological examination. The findings suggest that CS/PVA nanofibers, fabricated under these conditions, possess promising characteristics for use as a drug-delivery scaffold in wound treatment applications.

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An insight into the influence of CuO NPs on the structural, dielectric, optical, and conductivity properties of PEO/PVA-CuO nanocomposite for energy storage nanoelectronic devices

Alfaifi,

Alkhattaby,

El-Qahtani

et al. 2024

emergent mater.

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Structural, morphological, optical, and thermal properties of electrospun PbS/PVP-PEO nanofibers

Cited by 20 publications

References 29 publications

Electrospun PbS/PAN–PANI Carbon Nanofibers Decorated on Carbon Cloth as Pseudo-Electrochemical Capacitor Material

Electrospun PbS/PAN–PANI Carbon Nanofibers Decorated on Carbon Cloth as Pseudo-Electrochemical Capacitor Material

Quality-by-Design Optimization of Electrospinning Parameters to Formulate Scaffolds for Topical Inflammatory Disease Management <i>via</i> Drug Repurposing

An insight into the influence of CuO NPs on the structural, dielectric, optical, and conductivity properties of PEO/PVA-CuO nanocomposite for energy storage nanoelectronic devices

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