Synthesis and in-situ functionalization of graphene films through graphite charging in aqueous Fe2(SO4)3

Yan, Rui; Wang, Kai; Wang, Congwei; Zhang, Huinian; Song, Yan; Guo, Quangui; Wang, Junzhong

doi:10.1016/j.carbon.2016.06.018

Cited by 17 publications

(7 citation statements)

References 56 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2016, Yan et al first prepared Fe 3 O 4 -graphene hybrids by electrochemical exfoliation in aqueous Fe 2 (SO 4 ) 3 . 18 In this process, graphite paper was used as the positive and negative electrodes, and its working voltage was 5 V (with exchange of current direction in every 3 h). From SEM images (Fig.…”

Section: Electrochemical Preparation Of Ghms and Applicationmentioning

confidence: 99%

Review—Preparation and Application of Graphene-Based Hybrid Materials through Electrochemical Exfoliation

Zhang

Deng

et al. 2020

J. Electrochem. Soc.

View full text Add to dashboard Cite

Since its first exfoliation in 2004, graphene has been extensively studied in many areas of material engineering due to its attractive properties. Graphene-based hybrid materials (GHMs) combined with advantageous materials, such as graphene, have shown broad application prospects in the fields of electronics, optoelectronics, energy storage, and conversion. High-efficiency and low-cost industrial scale methods must be developed to produce high-quality GHMs and realize their potential applications. Electrochemical exfoliation is one of the most promising methods for GHMs production because of its mild operating conditions, short time, and simple instruments. In this review, we briefly introduce electrochemically prepared graphene on the basis of their differences in exfoliation electrodes and then review the electrochemical exfoliation of GHMs. Factors affecting the hybridization of graphene, the possible hybrid mechanism, and the potential application prospects are also elucidated. Lastly, insights and perspectives on current research challenges and future opportunities regarding the electrochemical exfoliation and applications of graphene and its hybrids are discussed.

show abstract

Section: Electrochemical Preparation Of Ghms and Applicationmentioning

confidence: 99%

Review—Preparation and Application of Graphene-Based Hybrid Materials through Electrochemical Exfoliation

Zhang

Deng

et al. 2020

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…The value of 3400 dB/mm is higher than most of the previously reported values of carbon materials [56]. For example, the value of SE T /thickness for graphene film (one of the materials that exhibit the highest performance per unit thickness) has been reported to be 1300 dB/ mm [57] and 4160 dB/mm [58].…”

Section: Resultsmentioning

confidence: 67%

Absorption-dominant radio-wave attenuation loss of metals and graphite

Guan

Chung

2021

J Mater Sci

View full text Add to dashboard Cite

Absorption-dominant radio-wave (0.2-2.0 GHz) attenuation loss is comparatively reported for materials of high electrical conductivity, namely metals (aluminum and steel) and graphite. These materials exhibit similarly high absorption loss (B 91.5%) and similarly low reflection loss (C 8.5%), both as fractions of the total loss in dB. The absorption loss is high (\ 55 dB) and the reflection loss is low (\ 10 dB) for both graphite and the metals. The absorptiondominant attenuation loss of these high-conductivity materials is in contrast to the notion that high conductivity (due to the high impedance mismatch with air) generally causes reflection-dominant attenuation loss. The metals and graphite are in foil form, with the graphite being thicker than the metals. The linear absorption coefficient (directly related to the absorption loss per unit thickness) is lower for graphite (B 93 mm -1 ) than the metals (B 394 mm -1 ), due to the greater thickness of the graphite. The absorption loss and fractional absorption loss contribution increase with increasing frequency, whereas the reflection loss decreases, as consistent with electromagnetic theory. On the other hand, from the viewpoint of the fractional loss in power, reflection dominates over absorption for all three materials in the entire frequency range. For shielding, the metals are more effective than graphite if the absorption loss per unit thickness (\ 3400 dB/mm) is considered. For stealth, graphite is advantageous to the metals in the low reflection loss, though it is disadvantageous in the low absorption loss per unit thickness.

show abstract

“…The specific EMI SE of the polymer/graphene composite foam raised up 45% over the length of the nanocomposite foams. Carbon series conductive fillers combining with magnetic materials can exhibit higher EMI SE of CPCs 34,35 . For instance, Hongming Zhang et al 19 decorated Fe 3 O 4 on the MWCNT to get better EMI shielding result.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon series conductive fillers combining with magnetic materials can exhibit higher EMI SE of CPCs. 34,35 For instance, Hongming Zhang et al 19 decorated Fe 3 O 4 on the MWCNT to get better EMI shielding result. Baowei Qiu et al 36 prepared Fe 3 O 4 /GO/carbon fiber composites, which exhibits EMI SE of 46.33 dB in X-band.…”

mentioning

confidence: 99%

Design and research of high‐performance electromagnetic interference shielding GO/NiNCs/PMMA microcellular foams

Wang

Zhou

et al. 2023

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

High performance electromagnetic (EM) interference shielding composites are of high demand due to increasing EM wave radiation pollution. In this work, GO/NiNCs/PMMA microcellular foams with different GO/NiNCs gradient and 3D conductive filler framework were fabricated by thermal reduction and supercritical CO 2 foaming process. With the crosslink of 1D NiNCs and 2D GO sheets, GO/NiNCs framework with electrical conductivity varied from 1.15 Â 10 À4 to highest 1.09 Â 10 À1 S/m is fabricated, exhibiting absorptiondominated electromagnetic interference shieling effectiveness (EMI SE) of 53.62 dB and specific EMI SE of 48.44 dB g À1 cm 3 in X-band. The density of GO/NiNCs/PMMA microcellular foams achieved lowest value of 0.623 g/cm 3 . Moreover, the foams showed excellent thermal conductivity and compressive strength of 178.76 MPa, indicating excellent application potential in aerospace and electronic field. The thermoplastic polymer matrix also indicates great potential in recycle of the foam material.

show abstract

Synthesis and in-situ functionalization of graphene films through graphite charging in aqueous Fe2(SO4)3

Cited by 17 publications

References 56 publications

Review—Preparation and Application of Graphene-Based Hybrid Materials through Electrochemical Exfoliation

Review—Preparation and Application of Graphene-Based Hybrid Materials through Electrochemical Exfoliation

Absorption-dominant radio-wave attenuation loss of metals and graphite

Design and research of high‐performance electromagnetic interference shielding GO/NiNCs/PMMA microcellular foams

Contact Info

Product

Resources

About