Effect of stirring on characteristics of electrochemically exfoliated graphene

Awasthi, G.; Mistry, Kuldeep; Jamnapara, N.I.; Salot, M.; Santhy, K.; Mandal, D.; Chaudhury, S. K.

doi:10.1016/j.mtla.2023.101818

Cited by 3 publications

(4 citation statements)

References 19 publications

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“…According to Figure b, it can be inferred that the width of the XPS peak for the C–C (sp 2 ) bond increases by increasing the laser fluence. A narrower fwhm in LIG may suggest a relatively pure sample with minimal impurities or chemical variations . Inversely, the nickel–graphene sample fabricated at a lower laser fluence of 0.78 J/mm 2 has broader C–O and CO peaks (see Figure c) and its fwhm is its maximum.…”

Section: Resultsmentioning

confidence: 99%

Fiber Laser Writing of Highly Sensitive Nickel Nanoparticle-Incorporated Graphene Strain Sensors

Nankali,

Rouhi,

Jones

et al. 2024

ACS Appl. Mater. Interfaces

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Unlocking new dimensions in wearable sensor technology, this research highlights ultrasensitive stretchable strain sensors fabricated with the customized laser-induced graphene (LIG) decorated with uniformly distributed nickel nanoparticles with a fiber laser writing process. The nickel nanoparticle-incorporated LIG (Ni-NPs@LIG) strain sensors fabricated by a simple alllaser-based method utilize a commercial fiber laser. The Ni-NPs@LIG sensors showcase an impressive gauge factor, reaching up to 248 for strain values below 5%, demonstrating a sensitivity increase of up to 430% compared to the pure LIG sensors. Moreover, these sensors offer adjustable strain sensitivity based on laser fluence. The key advancement of this study lies in the direct laser writing of highly porous nickel−graphene nanostructures with adjustable properties, making them applicable across a broad range of applications. As an application demonstration, the strain sensors were employed to assess the small deformation of a pouch battery or track the large deformation of a balloon surface.

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Section: Resultsmentioning

confidence: 99%

Fiber Laser Writing of Highly Sensitive Nickel Nanoparticle-Incorporated Graphene Strain Sensors

Nankali,

Rouhi,

Jones

et al. 2024

ACS Appl. Mater. Interfaces

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“…The process is schematically shown in Figure 2. The electrochemical exfoliation method is an environmentally friendly technique to fabricate graphene and enables production at room temperature [8,32,33]. This technique uses many types of graphite, including graphite foils, rods, plates, and powders, as electrodes in an aqueous or non-aqueous electrolyte, together with an electric current to cause electrode expansion [6].…”

Section: Graphene Production Techniquesmentioning

confidence: 99%

“…Applying a voltage of 10 V resulted in the formation of multilayer graphene platelets with high defect concentration. Awasthi G. et al [33] produced multi-layered (i.e., 1-5), high-quality graphene nanoplatelets using low voltage (3-4 V) during the process. For this purpose, they used potassium hydroxide solution as an electrolyte.…”

Section: Graphene Production Techniquesmentioning

confidence: 99%

“…For this purpose, they used potassium hydroxide solution as an electrolyte. The stirring of an electrolyte during electrolysis affected the properties of graphene, i.e., the average size of graphene nanoplatelets increased in that case, but also a reduction in the defect concentration was observed with an increase in several layers of C atoms in graphene [33]. To create high-yield solution-processable graphene, Zhang Y. et al [34] used an electrochemical anode and cathode co-exfoliation technique.…”

Section: Graphene Production Techniquesmentioning

confidence: 99%

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Graphene Production and Biomedical Applications: A Review

Malisz,

Świeczko-Żurek

2023

Crystals

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Graphene is a two-dimensional nanomaterial composed of carbon atoms with sp2 hybrid orbitals. Both graphene and graphene-based composite have gained broad interest among researchers because of their outstanding physiochemical, mechanical, and biological properties. Graphene production techniques are divided into top-down and bottom-up synthesis methods, of which chemical vapor deposition (CVD) is the most popular. The biomedical applications of graphene and its composite include its use in sensors, implantology, and gene and drug delivery. They can be used for tissue engineering, anticancer therapies, and as antimicrobial agents in implant application. The biocompatibility of graphene-based nanomaterials enables their use in the field of biomedicine. This article reviews the properties of graphene, the methods used to produce it, the challenges associated with its use, and the potential applications of this material in biomedicine, regenerative medicine, and drug delivery systems.

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Top-down strategies for achieving high-quality graphene: Recent advancements

Agrawal

2024

Journal of Industrial and Engineering Chemistry

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Effect of stirring on characteristics of electrochemically exfoliated graphene

Cited by 3 publications

References 19 publications

Fiber Laser Writing of Highly Sensitive Nickel Nanoparticle-Incorporated Graphene Strain Sensors

Fiber Laser Writing of Highly Sensitive Nickel Nanoparticle-Incorporated Graphene Strain Sensors

Graphene Production and Biomedical Applications: A Review

Top-down strategies for achieving high-quality graphene: Recent advancements

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