Analytical investigation of carrier concentration effect on one-dimensional graphene nanoscroll

Kiani, Mohammad Javad; Akbari, Elnaz; Kooshkaki, F. Rahmanian; Zeinalinezhad, Alireza

doi:10.1007/s13391-015-5352-y

Cited by 7 publications

(5 citation statements)

References 21 publications

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“…The utilization of nanomaterials has explosively increased with a great amount of work reported (Jung et al, 2016;Karimipour and Molaei, 2016;Kiani et al, 2016;Kim T. U. et al, 2016); Lee et al, 2016;Meang et al, 2016;Tola et al, 2016;Truong and Park, 2016). Recently, nanocomposites based on RGO have been synthesized through the decoration of different NPs on graphene oxide (GO) or RGO, which have numerous applications in lithium ion batteries (Chen et al, 2015), surface-enhanced Raman spectroscopy (Huang et al, 2015), sensors (Bas, 2015), photo-catalysts (Yan et al, 2014;Hareesh et al, 2016), and others.…”

Section: Introductionmentioning

confidence: 99%

Improvement of NO2 Sensing Properties in Pd Functionalized Reduced Graphene Oxides by Electron-Beam Irradiation

et al. 2019

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Herein, we present the effect of electron-beam irradiation (EBI) on the gas-sensing properties of Pd-functionalized reduced graphene oxide (RGO). Scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy were used to characterize the synthesized products. The samples were irradiated using electron beams at doses of 0 (Pd-RGO-0), 100 (Pd-RGO-100), and 500 kGy (Pd-RGO-500), and the NO2 gas-sensing properties were investigated. It was found that irradiation by electron beams has a critical effect on the gas-sensing properties of the samples, and the Pd-RGO-500 sensor showed the highest response to NO 2 gas. In particular, the response of the unirradiated sensor and the sensor irradiated at doses of 100 and 500 kGy to 10 ppm NO 2 were 1.027, 1.045, and 1.047, respectively. The response times of Pd-RGO-0, Pd-RGO-100, and Pd-RGO-500 to 10 ppm NO 2 gas were 389, 335, and 345 s, respectively. The corresponding recovery times for these sensors were 808, 766, and 816 s, respectively. The increased numbers of oxygen functional groups and high-energy defects were the main reasons for the increased gas response. This study will eventually lead to increased performance levels of RGO-based sensors that use EBI, as this technology can introduce changes into materials in a non-contact, clean, and powerful manner.

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Section: Introductionmentioning

confidence: 99%

Improvement of NO2 Sensing Properties in Pd Functionalized Reduced Graphene Oxides by Electron-Beam Irradiation

et al. 2019

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“…Structure and properties of graphene nanoscrolls (GNS), apart from experimental methods, have been extensively studied with the help of firstprinciples calculations [32][33][34], molecular dynamics [35][36][37][38][39][40][41][42][43][44][45][46] molecular mechanics [47] and using the spiral elastic rod model [35,40,48,49]. Theoretical band structure analysis of zigzag (16,0) graphene nanoscroll has been performed [50,51] in frame of the theoretical model developed by the authors. Well-defined CNSs can be formed by single-side hydrogenation and fluorination of graphene, according to the molecular dynamics simulations reported in [52].…”

Section: Introductionmentioning

confidence: 99%

Graphene nanoribbon winding around carbon nanotube

Savin¹,

Korznikova

Soboleva

2017

Computational Materials Science

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“…In recent years, especially carbon nanosheets (CNS) consist of tubular structure similar to the open-walled carbon nanotube 42 . Graphene nanosheets (GNS) have also attracted considerable attention because of their unique properties.…”

Section: Graphene Sheetsmentioning

confidence: 99%

A Comprehensive Review on the Nanocomposites of Graphene and Its Derivatives in the Application of Supercapacitors

Divya¹,

Prithiba²,

Rajalakshmi³

2019

RJC

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The unique properties of Graphene-based nanocomposites have attracted numerous investigations in the field of materials science from supercapacitors to drug delivery applications. Graphene has received attention as a probe or electrode material source for supercapacitors because it consists of low electrical resistance, large electrolyte accessibility based on the larger surface area and chemical stability. The extra properties of graphene show some promising application such as optical electronics, composites and others. Supercapacitors are able to store more energy and can be fully charged / discharged at high speeds. This review has been mainly focused on the following points namely synthesis route of Graphene which consists of Bottom-Up and Top-Down approaches, are more difficult and hindering the massive production of graphene. We have also discussed the different techniques utilized for the synthesis of reduced graphene oxide namely thermally, hydrothermally, partially and electrochemically reduced graphene oxide and its electrochemical behavior. Analysis of these results inferred the specific capacitance in the range of 220,223.6, 225 and 230 F/g (acid and neutral). The characterization of Graphene/Nanocomposites by RAMAN, FTIR, SEM and TEM analysis were also reviewed and found to be suitable for supercapacitors. In this review, the current development of the synthesis route of graphene oxide and its composites with future prospects is presented and discussed.

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Analytical investigation of carrier concentration effect on one-dimensional graphene nanoscroll

Cited by 7 publications

References 21 publications

Improvement of NO2 Sensing Properties in Pd Functionalized Reduced Graphene Oxides by Electron-Beam Irradiation

Improvement of NO2 Sensing Properties in Pd Functionalized Reduced Graphene Oxides by Electron-Beam Irradiation

Graphene nanoribbon winding around carbon nanotube

A Comprehensive Review on the Nanocomposites of Graphene and Its Derivatives in the Application of Supercapacitors

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