Comparison of the morphology, chemical composition and microstructure of cryptocrystalline graphite and carbon black

Quan, Ying; Liu, Qinfu; Zhang, Shilong; Zhang, Shuai

doi:10.1016/j.apsusc.2018.03.182

Cited by 61 publications

(21 citation statements)

References 26 publications

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“…Figure presents the XRD patterns of graphite, GO, and RGO. With regard to graphite, two diffraction peaks existed at 2θs of 26.38 and 54.64°; these belonged to the (002) and (004) crystal planes, respectively . On the basis of Bragg's equation, the interlayer spacings of the (002) and (004) crystal planes were determined to be 0.338 and 0.168 nm, respectively.…”

Section: Resultsmentioning

confidence: 98%

Synergic enhancement of the anticorrosion properties of an epoxy coating by compositing with both graphene and halloysite nanotubes

Han

et al. 2019

J of Applied Polymer Sci

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The aim of this research was to improve the corrosion resistance of metal surfaces with polymer coatings. Both graphene and halloysite nanotubes (HNTs) were introduced together into the epoxy resin coating for the enhanced barrier protection of the metallic surface. The anticorrosion behaviors of different coatings were comparatively evaluated by the potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS), and neutral salt spray (NSS) tests. The potentiodynamic polarization curves showed that the coating containing 0.5 wt % HNTs and 0.8 wt % graphene (H05G08EP) together had the most positive corrosion potential and the minimum corrosion current density. The EIS results revealed that graphene endowed the composite coatings with excellent electrochemical performance for anticorrosive purposes. The NSS tests indicated that H05G08EP endured the longest NSS time. These results suggest that H05G08EP had the best corrosion resistance.

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Section: Resultsmentioning

confidence: 98%

Synergic enhancement of the anticorrosion properties of an epoxy coating by compositing with both graphene and halloysite nanotubes

Han

et al. 2019

J of Applied Polymer Sci

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“…Carbon nanostructures have been widely used as fillers to reinforce polymer matrices due to their mechanical strength, large surface area, and thermal stability, providing possible benefits in many potential technological and industrial applications, particularly those where tribological features are involved. [31][32][33][34][35] CB is the most common industrial carbon filler due to its relatively low cost, easy processing, and low specific weight in relation to the other types of fillers, such as carbon nanotubes. Moreover, it is frequently used as reinforcement for polymer matrices.…”

Section: Introductionmentioning

confidence: 99%

3D Printed Parts of Polylactic Acid Reinforced with Carbon Black and Alumina Nanofillers for Tribological Applications

Cardoso

Oliveira

et al. 2020

Macromolecular Symposia

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Abstract3D printing plays an important role in Industry 4.0 and has versatility to use different materials, including thermoplastic polymers. Polylactic acid (PLA), a bio‐based biodegradable polymer, is used as a potential replacement for petroleum‐based polymers in several applications, and is one of the most popular polymers used in 3D printing. Inorganic/organic nanoparticles can be incorporated in polymers to improve various properties such as thermal, mechanical, and tribological. This work investigates the effect of adding carbon black (CB) and alumina (ALM) nanofillers on the thermal, mechanical, and tribological properties of 3D printed PLA nanocomposites for tribological applications. Both nanofillers promoted progressive enhancement of thermal stability according to TGA. The improvement in the interaction between nanofillers and PLA matrix is revealed by an increase in viscosity of the nanocomposites. The nanocomposites containing 25%wt ALM and 75wt% CB presented better mechanical and wear properties, suggesting synergism between nanofillers and that CB may act as a compatibilizer between PLA and ALM. These results enable selecting the most suitable composition of nanofillers to be added to PLA to create filaments with better tribological properties.

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“…The use of CB includes automobile tires, machine parts, cable, hose, construction materials, and even fuel cell applications. [33][34][35][36] Additionally, CB is used in inks, paints, plastic, and carbon papers, giving its black color and even some additional properties.…”

Section: Introductionmentioning

confidence: 99%

Surface‐modified carbon black derived from used car tires as alternative, reusable, and regenerable catalysts for H ₂ release studies from sodium borohydride methanolysis

Ari

Sunol

et al. 2019

Int J Energy Res

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Summary Carbon black (CB) obtained from used car tire rubbers were treated with concentrated sulfuric and nitric acids. The oxidized CB (CB‐COO‐Na+) is subsequently modified with epichlorohydrin (ECH) and amines including polyethylene imine (PEI). These modified CBs such as CB‐PEI are used as metal‐free catalysts in methanolysis of sodium borohydride (NaBH4) to produce hydrogen. The hydrogen generation rate (HGR) of 3089 ± 44.69 mL.min‐1.g‐1 is accomplished at room temperature with CB‐PEI‐hydrochloric acid (HCl) catalyst. The resulting activation energy of 34.7 kJ/mol for the temperature range of −20°C to +30°C compares favorably to most of alternative catalysts reported in literature while reaction catalyzing capabilities of CB‐PEI‐HCl particles extend to the subzero temperature range (−20°C‐0°C). The reuse and regeneration studies conducted for the CB‐PEI‐HCl catalyst showed that these catalysts do provide complete conversion at every use up to five consecutive runs and retain 50 ± 2.5% of the original hydrogen generation rate at the fifth consecutive reuse. The CBs‐based catalysts are fully regenerated with HCl treatment.

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Comparison of the morphology, chemical composition and microstructure of cryptocrystalline graphite and carbon black

Cited by 61 publications

References 26 publications

Synergic enhancement of the anticorrosion properties of an epoxy coating by compositing with both graphene and halloysite nanotubes

Synergic enhancement of the anticorrosion properties of an epoxy coating by compositing with both graphene and halloysite nanotubes

3D Printed Parts of Polylactic Acid Reinforced with Carbon Black and Alumina Nanofillers for Tribological Applications

Surface‐modified carbon black derived from used car tires as alternative, reusable, and regenerable catalysts for H ₂ release studies from sodium borohydride methanolysis

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Comparison of the morphology, chemical composition and microstructure of cryptocrystalline graphite and carbon black

Cited by 61 publications

References 26 publications

Synergic enhancement of the anticorrosion properties of an epoxy coating by compositing with both graphene and halloysite nanotubes

Synergic enhancement of the anticorrosion properties of an epoxy coating by compositing with both graphene and halloysite nanotubes

3D Printed Parts of Polylactic Acid Reinforced with Carbon Black and Alumina Nanofillers for Tribological Applications

Surface‐modified carbon black derived from used car tires as alternative, reusable, and regenerable catalysts for H 2 release studies from sodium borohydride methanolysis

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Product

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Surface‐modified carbon black derived from used car tires as alternative, reusable, and regenerable catalysts for H ₂ release studies from sodium borohydride methanolysis