Electrical enhancement of radiation-vulcanized natural rubber latex added with reduced graphene oxide additives for supercapacitor electrodes

Suriani, A. B.; Nurhafizah, M.D.; Mohamed, Azmi; Masrom, Abdul Kadir; Mamat, M. H.; Malek, M. F.; Ahmad, Mohd Khairul; Rosmi, Mohamad Saufi; Tanemura, Masaki

doi:10.1007/s10853-017-0897-9

Cited by 21 publications

(8 citation statements)

References 48 publications

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“…Strikingly, even after a 5 h ultrasonication operation, there was not any observable exfoliation of graphene sheets (Figure S7). We think that this impressive mechanical stability is not only related to the enhanced hydrophobic interactions between rGO sheets and NRL but also attributed to hydrogen bonding interaction between the remaining oxygen functional groups of rGO sheets and protein molecules on the NRL surface …”

Section: Resultsmentioning

confidence: 97%

“…We think that this impressive mechanical stability is not only related to the enhanced hydrophobic interactions between rGO sheets and NRL but also attributed to hydrogen bonding interaction between the remaining oxygen functional groups of rGO sheets and protein molecules on the NRL surface. 38 Figure 4D shows the typical compressive stress−strain curves of GA/NRL-0.5 with a density of 8.1 mg cm −3 at different maximum strain of 10−80%, respectively. All the curves could return to origin which is similar to the curves of previous reported elasticity porous materials, 2,4,33,39−41 suggesting GA/NRL-0.5 can completely recover.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Tough, Ultralight, and Water-Adhesive Graphene/Natural Rubber Latex Hybrid Aerogel with Sandwichlike Cell Wall and Biomimetic Rose-Petal-Like Surface

Zhang

Yang

Zong

et al. 2019

ACS Appl. Mater. Interfaces

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Graphene aerogel (GA) as a rising multifunctional material has demonstrated great potential for energy storage and conversion, environmental remediation, and high-performance sensors or actuators. However, the commercial use of GA is obstructed by its fragility and high cost. Herein, by a simple stirring-induced foaming of the mixed aqueous solutions of natural rubber latex (NRL) and graphene oxide liquid crystal (GOLC), we obtained tough, ultralight (4.6 mg cm −3 ), high compressibility (>90%), and water-adhesive graphene/NRL hybrid aerogel (GA/NRL). Of particular note, the NRL particles are conformally wrapped by graphene layers to form a sandwichlike cell wall with a biomimetic rose-petal-like surface. These distinct hierarchical structures endow GA/NRL not only with high toughness to bear impact, torsion (>90°), and even ultrasonication but also with strong adhesion to water. As proof of concept, the utilization of the as-prepared GA/NRL for collecting water droplets suspended in moist air and its improved solar−thermal harvest capacity have been demonstrated. This facile, green, and cost-effective strategy opens a new route for tailoring the microstructure and functionality of GA, which will facilitate its large-scale production and commercial application.

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Section: Resultsmentioning

confidence: 97%

Section: ■ Results and Discussionmentioning

confidence: 99%

Tough, Ultralight, and Water-Adhesive Graphene/Natural Rubber Latex Hybrid Aerogel with Sandwichlike Cell Wall and Biomimetic Rose-Petal-Like Surface

Zhang

Yang

Zong

et al. 2019

ACS Appl. Mater. Interfaces

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“…The obtained sample was dried for 24 hours in a petri dish to form a thin film. This work has been performed as previously discussed [37,38]. The electrical conductivity and capacitive behavior was done using four-point probe (Keitley 2636A), and cyclic voltammetry (CV-Gamry potentiostat series-G750 equipped galvanostat) measurements, respectively.…”

Section: Graphene Oxide/natural Rubber Latex Polymer Nanocomposite Symentioning

confidence: 99%

Stabilized Graphene Oxide Assisted Surfactants and Its Capacitance Performance

Disa¹

2020

Graphene Production and Application

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The use of surfactant in achieving high stabilization and exfoliation graphene oxide (GO) was seen to be the crucial factor in improving the quality and quantity of GO produced via electrochemical exfoliation method. Therefore, this chapter is presenting the physical characterizations that successfully showed the stabilization of GO by various anionic surfactant. The uniqueness in this work was lie on the number of tails surfactant which consists of single-, double-and triple-tails, and the comparison study in terms of electrical conductivity between the commercial and custom-made surfactants. Moreover, the effective stabilized-GO was further explored in super capacitor application. This work opens a new window for green and low-cost GO material as conductive electrodes material.

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“…Therefore, the use of radiation, especially gamma rays, has gained great attention from researchers and product developers to develop a technology suitable for use on a larger industrial scale. Examples of recent developed R-VNRL products include X-ray shielding gloves based on nano-Bi 2 O 3 /R-VNRL composites [1], electromagnetic interference (EMI)-shielding materials from R-VNRL composites containing carbon nanotubes (CNT) and silk textile [14], and supercapacitor electrodes [15].…”

Section: Introductionmentioning

confidence: 99%

Roles of Chitosan as Bio-Fillers in Radiation-Vulcanized Natural Rubber Latex and Hybrid Radiation and Peroxide-Vulcanized Natural Rubber Latex: Physical/Mechanical Properties under Thermal Aging and Biodegradability

et al. 2021

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Although natural rubber was regarded as biodegradable, the degradation is a time-consuming process that could take weeks or months for any degradation or substantial weight loss to be observable, resulting in the need for novel processes/methods to accelerate the rubber degradation. As a result, this work investigated the potential utilization of chitosan (CS) as a biodegradation enhancer for radiation-vulcanized natural rubber latex (R-VNRL) and hybrid radiation and peroxide-vulcanized natural rubber latex (RP-VNRL) composites, with varying CS contents (0, 2, 4, or 6 phr). The R-VNRL samples were prepared using 15 kGy gamma irradiation, while the RP-VNRL samples were prepared using a combination of 0.1 phr tert-butyl hydroperoxide (t-BHPO) and 10 kGy gamma irradiation. The properties investigated were biodegradability in the soil and the morphological, chemical, mechanical, and physical properties, both before and after undergoing thermal aging. The results indicated that the biodegradability of both the R-VNRL and RP-VNRL composites was enhanced with the addition of CS, as evidenced by increases in the percentage weight loss (% weight loss) after being buried in soil for 8 weeks from 6.5 ± 0.1% and 6.4 ± 0.1% in a pristine R-VNRL and RP-VNRL samples, respectively, to 10.5 ± 0.1% and 10.2 ± 0.1% in 6-pph CS/R-VNRL and 6-pph CS/RP-VNRL composites, respectively, indicating the biodegradation enhancement of approximately 60%. In addition, the results revealed that the addition of CS could increase the value of tensile modulus by 119%, while decrease the values of tensile strength and elongation at break by 50% and 43%, respectively, in the specimens containing 6-phr CS. In terms of the color appearances, the samples were lighter and yellower after the addition of CS, as evidenced by the noticeably increased L* and b* values, based on the CIE L*a*b* color space system. Furthermore, the investigation into the effects of thermal aging showed that the overall tensile properties for both curing systems were reduced, while varying degrees of color change were observed, with the pristine R-VNRL and RP-VNRL samples having more pronounced degradation/changes for both properties. In conclusion, the overall results suggested that CS had great potential to be applied as a bio-filler in R-VNRL and RP-VNRL composites to effectively promote the biodegradability, environmental friendliness, and resistance to thermal degradation of the composites.

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Electrical enhancement of radiation-vulcanized natural rubber latex added with reduced graphene oxide additives for supercapacitor electrodes

Cited by 21 publications

References 48 publications

Tough, Ultralight, and Water-Adhesive Graphene/Natural Rubber Latex Hybrid Aerogel with Sandwichlike Cell Wall and Biomimetic Rose-Petal-Like Surface

Tough, Ultralight, and Water-Adhesive Graphene/Natural Rubber Latex Hybrid Aerogel with Sandwichlike Cell Wall and Biomimetic Rose-Petal-Like Surface

Stabilized Graphene Oxide Assisted Surfactants and Its Capacitance Performance

Roles of Chitosan as Bio-Fillers in Radiation-Vulcanized Natural Rubber Latex and Hybrid Radiation and Peroxide-Vulcanized Natural Rubber Latex: Physical/Mechanical Properties under Thermal Aging and Biodegradability

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