Zirconia‐Nanoparticle‐Reinforced Morphology‐Engineered Graphene‐Based Foams

Chakravarty, Dibyendu; Tiwary, Chandra Sekhar; Machado, Leonardo D.; Brunetto, Gustavo; Vinod, Soumya; Yadav, Ram Manohar; Galvão, Douglas S.; Joshi, Shrikant V.; Sundararajan, G.; Ajayan, Pulickel M.

doi:10.1002/adma.201502409

Cited by 28 publications

(16 citation statements)

References 43 publications

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“…The functional groups aid GO dispersion in most solvents and increased interaction with various organic and inorganic compounds . This has led to GO being used as precursor for various solution processed nanostructures . The properties of GO also show marked variation from pristine graphene.…”

mentioning

confidence: 99%

Graphene Oxide Epoxy (GO‐xy): GO as Epoxy Adhesive by Interfacial Reaction of Functionalities

Vinod

Tiwary

Samanta

et al. 2017

Adv Materials Inter

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mentioning

confidence: 99%

Graphene Oxide Epoxy (GO‐xy): GO as Epoxy Adhesive by Interfacial Reaction of Functionalities

Vinod

Tiwary

Samanta

et al. 2017

Adv Materials Inter

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“…Graphene aerogels, which are fabricated with graphene oxide (GO) by self‐assembly and reduction, have proven their capacity as super absorbents for oil/water separation , . For example, Xu et al fabricated graphene aerogel by hydrothermal chemical reduction and freeze‐drying processes.…”

Section: Applications Based On Adsorption Performancementioning

confidence: 99%

Carbon Aerogels for Environmental Clean‐Up

Gan

Fan

et al. 2019

Eur J Inorg Chem

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Carbon aerogels are a fascinating three-dimensional (3D) monolithic porous material with remarkable physicochemical properties, including low density, large surface area, abundant pore structure, high electrical conductivity, chemical stability, environmental compatibility, adjustable surface chemistry, as well as controllable structural features. These properties endow carbon aerogels with excellent adsorption and catalytic performance. Therefore, they are widely applied in environmental chemistry for removing pollutants like oils, toxic organic solvents, dyes, heavy metal ions in aquatic environments, and vol- [a] Minireview Carbon aerogels show wonderful adsorption and catalytic performance because of the microscopic properties of carbon nanomaterials and the macroscopic structure of the gel. In addi-Guoqiang Gan received his master′s degree in 2016, and since then, he has studied environmental engineering at Dalian University of

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“…On the other hand, the innovative 3D architecture based on 2D graphene and graphene oxide enables morphology‐engineered performance, such as strong mechanical properties, high effective surface area, and fast transport kinetics . Developing 3D blocks has been proposed as an effective approach for the morphology tuning of 2D units, which can be referred to foams, templates, and aerogels .…”

Section: Introductionmentioning

confidence: 99%

On‐Chip Rolling Design for Controllable Strain Engineering and Enhanced Photon–Phonon Interaction in Graphene

Wang

Tian

Zhang

et al. 2019

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specific surface area. [1,2] The nontrivial band structure of graphene near the Fermi level enables a series of appealing phenomena, e.g., the anomalous quantum Hall effect, [3] ultrahigh electron mobility, [4] and superior thermal conductivity, [5] rendering it a promising candidate for the next generation of micro/nanoelectronic devices. With respect to its current status and future perspectives, it is of great significance to fully explore the tunability of the properties of graphene by various methods, e.g., doping, [6] gating, [7] and strain engineering. [8,9] Among these approaches, strain engineering is capable of altering the lattice symmetry of graphene, thus tuning its electronic band structure, [10,11] which could be superior in the bandgap opening, [12] conductance modulation, [13,14] and the formation of strong magnetic field. [15] For a realistic graphene-integrated optoelectronic device in an on-chip manner, such as optical modulators, [16] silicongraphene photodetectors, [17,18] and broadband polarizer, [19] strain engineering is desired in order to provide a flexible approach for tuning the electrical structure of graphene. However, developed strain-tuning methods, such as the deformation of flexible substrates, [20,21] piezoelectric substrate actuation, [22] and pressurized blisters, [23] are hardly compatible with onchip applications. Particularly, using the rolling method as a reliable approach for both optimal yields and effective strain manipulation [24][25][26] suggests direct and precise tuning with target morphologies and thus their mechanical properties. [27] Based on rolling geometry, the corresponding strain states in graphene can be designed and accurately realized, as summarized in Figure 1, where the tensile strain in graphene could be introduced through the transfer process of graphene onto conventional semiconductors. [28,29] However, compressive strain in graphene is seldom reported because the critical compressive strain for buckling is several orders of magnitude smaller than the critical tensile strain for fracturing. [30] Furthermore, for a few compressive strain cases, it is essential to explore the fundamental physics of out-of-plane deformation, which often occurs during the compression process.On the other hand, the innovative 3D architecture based on 2D graphene and graphene oxide enables morphologyengineered performance, such as strong mechanical properties, On-chip strain engineering is highly demanded in 2D materials as an effective route for tuning their extraordinary properties and integrating consistent functionalities toward various applications. Herein, rolling technique is proposed for strain engineering in monolayer graphene grown on a germanium substrate, where compressive or tensile strain could be acquired, depending on the designed layer stressors. Unusual compressive strains up to 0.30% are achieved in the rolled-up graphene tubular structures. The subsequent phonon hardening under compressive loading is observed through straininduced Raman G band splittin...

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Zirconia‐Nanoparticle‐Reinforced Morphology‐Engineered Graphene‐Based Foams

Cited by 28 publications

References 43 publications

Graphene Oxide Epoxy (GO‐xy): GO as Epoxy Adhesive by Interfacial Reaction of Functionalities

Graphene Oxide Epoxy (GO‐xy): GO as Epoxy Adhesive by Interfacial Reaction of Functionalities

Carbon Aerogels for Environmental Clean‐Up

On‐Chip Rolling Design for Controllable Strain Engineering and Enhanced Photon–Phonon Interaction in Graphene

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