Environmentally Friendly Water-Based Reduced Graphene Oxide/Cellulose Nanofiber Ink for Supercapacitor Electrode Applications

ACS Omega, Год журнала: 2024, Номер 9(10), С. 11730 - 11737

Опубликована: Фев. 27, 2024

The agglomeration of reduced graphene oxide (rGO) in water makes the development rGO inks for supercapacitor printing challenging. Cellulose nanofiber (CNF), a biodegradable and renewable nanomaterial, can act as nanospacer, preventing restacking flakes. In this work, rGO/CNF films were fabricated using an environmentally friendly water-based ink. absence additional binder/surfactant, demonstrated remarkably enhanced hydrophilicity while retaining good electrical conductivity. concentration CNF was varied to observe variation electrochemical performance. At current density 1 mA/cm2, rGO/CNF-15 film exhibited maximum areal capacitance 98.61 mF/cm2, closely matching that pure films. Because its excellent performance, ease manufacturing, environmental friendliness, ink may have promising applications electrodes.

Язык: Английский

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Integration of microfluidic chips with biosensors

Deleted Journal, Год журнала: 2024, Номер 6(9)

Опубликована: Авг. 23, 2024

Abstract The potential threat posed by disease outbreaks to diagnostic instruments demands the development of more effective biosensor technologies counteract risks. Diseases like SARS-CoV-2, Ebola, malaria, cholera, and many have demonstrated beyond limits health care that new advancements are required for early detection diagnosis. rising number diseases has led an increasing demand biosensors quicker utilize in healthcare settings. A incorporated with microfluidic chips offers improved compared traditional or classical biosensors. Microfluidic improve performance allowing automation, mixing, separation, throughput processing, transport analytes desired reactors. a chip sensitivity, easy operation can use small volumes samples process results. effectiveness depends also on materials used its fabrication there which reviewed this work. This paper reviews advantages enhance biosensors, fabricate chips, electrodes into time shortening processing at point service. work not previously addressed other including, integration cell-imprinted polymers sensors delved future outlook.

Язык: Английский

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Eco-friendly graphene-based conductive ink for scalable production of high-performance flexible micro-supercapacitors

Journal of Power Sources, Год журнала: 2025, Номер 633, С. 236388 - 236388

Опубликована: Фев. 6, 2025

Язык: Английский

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Potential of 3D printing in revolutionizing solar-driven interfacial evaporation for clean water supply – A review

Applied Materials Today, Год журнала: 2025, Номер 43, С. 102639 - 102639

Опубликована: Фев. 19, 2025

Язык: Английский

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Preparation of a Cu-Doped Graphene Oxide–Glutamine Nanocomposite for Supercapacitor Electrode Applications: An Experimental and Theoretical Study

ACS Applied Electronic Materials, Год журнала: 2024, Номер 6(6), С. 4108 - 4119

Опубликована: Июнь 12, 2024

In this study, using graphene oxide (GO), glutamine (G), and Cu(II) nanoparticles, a nanocomposite was prepared. Then, the prepared checked out by various techniques such as X-ray diffraction, Fourier transform infrared, Raman spectrum, scanning electron microscopy, energy-dispersive X-ray, results showed that desired structure successfully Also, three-electrode system utilized to measure electrochemical properties. The specific capacitance of Cu-doped oxide-glutamine (Cu/G-GO) 1838 F g–1 obtained in 1 M H2SO4 aqueous electrolyte under current density 3 A g–1. Moreover, 85.43% initial electrode preserved after 5000 cycles at 20 (10,000 cycles, 73.12%). quantum layer distance GO G-GO functional theory were calculated.

Язык: Английский

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Applicability of the MoS₂–aSiC Heterostructure for Durable Supercapacitance and NO₂ Gas Sensing in a Harsh Environment

ACS Applied Electronic Materials, Год журнала: 2024, Номер 6(4), С. 2400 - 2412

Опубликована: Апрель 11, 2024

In the present work, heterostructure of molybdenum disulfide (MoS2) with amorphous silicon carbide (aSiC) on stainless steel (SS) and Si substrates was fabricated by using a DC magnetron sputtering system. This unique examined for energy storage NO2 gas-sensing applications suitable harsh environmental conditions. The two-dimensional (2D) MoS2 nanostructured dissolution resistive aSiC supercapacitor electrode delivers 1.5-fold enhancement in gravimetric capacitance, voltage window enlargement from 0.8 to 1.8 V, an excellent stability more than 4000 charge–discharge cycles. Further, high-concentration performance MoS2–aSiC substrate revealed stable recoverable response at high operating temperatures. Therefore, loading 2D enables durable material adverse as-fabricated systematically studied various electrochemical characterizations.

Язык: Английский

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Functionalized Graphene Quantum Dots (FGQDs): A review of their synthesis, properties, and emerging biomedical applications

Carbon Trends, Год журнала: 2024, Номер 18, С. 100442 - 100442

Опубликована: Дек. 10, 2024

Язык: Английский

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One-Step Assembly of Conductive Coatings from Polyphenol and Nanocarbon-PIL: A Versatile Approach for Fabricating Multifunctional Sensors

Composites Science and Technology, Год журнала: 2025, Номер unknown, С. 111083 - 111083

Опубликована: Янв. 1, 2025

Язык: Английский

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Capillary breakup of molybdenum disulfide particle-laden viscoelastic fluids

Physics of Fluids, Год журнала: 2025, Номер 37(3)

Опубликована: Март 1, 2025

The exceptional mechanical, electrical, and optical properties of two-dimensional (2D) particles, such as molybdenum disulfide (MoS2), have driven their incorporation into functional inks for advanced printing techniques. In many these processes, extensional deformation governs the separation ink from feeding system to substrate, with capillary breakup significantly influencing print quality resolution. This study investigates filament thinning dynamics MoS2 suspensions under varying electric fields aligned flow direction. results reveal that increasing particle concentration accelerates rate in inertio-capillary regime, leading a shorter lifetime. Furthermore, critical Ohnesorge number defining transition between visco-capillary regimes is shown depend on field strength. Interestingly, apparent relaxation time decreases concentration, disappearing entirely at 0.50% 0.75% w/w, before reemerging higher concentrations absence an field. These findings provide new insights complex interplay fields, flow, implications optimizing 2D particle-laden applications.

Язык: Английский

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Overview on Comparison of Four Preparation Methods and Physical Properties of Graphene

Nanomaterials and Nanotechnology, Год журнала: 2025, Номер 2025(1)

Опубликована: Янв. 1, 2025

Graphene is a single layer of carbon atoms arranged in hexagonal lattice structure, forming two‐dimensional (2D) material with exceptional mechanical, electrical, and thermal properties. has emerged as one the most promising nanomaterials because its unique combination properties: thinnest strongest materials, an excellent conductor electricity, optically transparent well. This article provides overview graphene materials regarding basic preparation methods, The four commonly used methods for preparing are compared, advantages disadvantages each expounded briefly summarized. And physical properties obtained by method, namely, mechanics, thermal, optics, were elaborated detail, related applications prospects further discussed.

Язык: Английский

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