Effect of multi walled carbon nanotubes and diamond nanoparticles on the structure and properties of carbon foams

Khan, Muhammad Asim; Li, Tiehu; Zhao, Ting; Ali, Zafar; Malik, Abdul; Khan, Abbas; Khan, Imran; Ullah, Azeem; Jiao, Shasha; Idrees, Muhammad; Xiong, Chuanyin

doi:10.1016/j.diamond.2017.09.008

Cited by 31 publications

(12 citation statements)

References 31 publications

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“…Due to the excellent deformation pressure, soft DEs have received a great deal of interest from the numerous EAPs in recent days. This interest in commercializing this technology and academic significance has been expanded by some of the companies 26–29 . Felice Fontana, who was mentioned by Italian scientist Alessandro Volta in a letter in the late 18th century, recorded the volume shift in solids due to electrical field effect in first electrical capacitors (Leyden jar) 27–30 .…”

Section: Introductionmentioning

confidence: 99%

Retracted: A concise review on the elastomeric behavior of electroactive polymer materials

Khan

Hayat

et al. 2021

Intl J of Energy Research

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In recent 20 years, electronic equipment has been developing rapidly in the direction of light, miniaturization, flexibility, and integration. It is urgent to meet the needs of matching energy supply system to solve the practical application requirements in the fields of intelligent communication and mobile medical treatment. Electroactive polymers (EAPs) are recommendable material for manifesting muscle-like actuation. The dielectric elastomers (DEs) obtained from the EAPs are quite capable of inducing electrical energy and transmute it into mechanical energy. DEs are capacitors covered by an outer elastic membrane, sandwiched between the two docile electrodes. In the beginning, for getting the efficient responses out of the DE actuators, the material requirements and electromechanical principal are applied. Viscoelastic damping, low dielectric loss, stretch ability, and dielectric permittivity are the desirable characteristics that we are expecting in a polymer. In the current research, we are going to adopt the sequential approach by describing the advances, challenges, and applications of DEAs in the coming future.

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Section: Introductionmentioning

confidence: 99%

Retracted: A concise review on the elastomeric behavior of electroactive polymer materials

Khan

Hayat

et al. 2021

Intl J of Energy Research

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“…It can also be seen that, when both MWCNTs and GO are synergistically introduce in CF matrix maximum compressive strength of 19.2 MPa resulted. This indicates that both MWCNTs and GO enhances the compressive strength of carbon foam [11,20]. Furthermore, Fig- 4(b) indicates the mechanical properties of CF composites containing various loading of MWCNTs and GO as additives in term of Young's modulus.…”

Section: Mechanical Propertiesmentioning

confidence: 86%

“…When MWCNTs and GO introduce in CF viscosity of pretreated pitches reduced at the foaming temperature, as a result bubble easily grows, combine and uniform CF structure form. SEM results shows that MWCNTs and GO greatly improved the morphological behavior of CF such as cellular structure, porosity, size and well organize homogeneity [9,20].…”

Section: Scanning Electron Microscopymentioning

confidence: 97%

“…For this purpose about 120 g of coal tar was taken and grounded to fine powder to get a particle of 70 µm, then heated to 430 ̊ C for 5 h in nitrogen atmosphere. The pretreated pitches were again heated and grounded to fine powder [20] . Then CF composite was prepared by adding different amount of GO and MWCNTs in CF.…”

Section: Preparation Of Carbon Foam Compositementioning

confidence: 99%

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Effect of Graphene Oxide and Multi-Walled Carbon Nanotubes on the Structure and Properties of Pitch Derived Carbon Foam Composites

Hussain¹,

Khan²,

Nawaz³

et al. 2021

Preprint

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Multi-walled carbon nanotubes (MWCNTs) and graphene oxide (GO) reinforced carbon foam (CF) composite were prepared by direct pyrolysis of MWCNTs, GO and mesophase coal tar pitch. The effect of additive amount of the mixture of MWCNTs and GO on the microstruture and properties of carbon foam was analzyed by transmission electron miscroscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), Four-probe resistance meter, universal testing machine, and laser thermal conductivity tester respectively. The result shows that MWCNTs and GO had significant impact on the microstructure of carbon foam. Futhermore, the electrical, mechanical and thermal properties of carbon foam composites were significantly enhanced by increasing the additive amount. Maximum compressive strenght of 19.2 MPa and Young’s modulus of 56.8 MPa of CF composite were observed. Similarly, Highest thermal conductivity of 30.91 W/m.K and electrical conductivity of 27.2 ×103 S/m were observed at 2 wt. % of MWCNTs-GO additive loading.

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“…[18][19][20] The introduction of magnetic and electrical semiconductor nanofillers in CF brings noticeable changes in its physical properties. 21,22 Detonation nanodiamond (DND) fabricated through a detonation process is popular for its mechanical strength, hardness, good biocompatibility and high thermal conductivity. 23 Recently major work has focused on the combination of DND with CF to improve the mechanical, thermal and electrical properties of CF.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of nanodiamond and titanium oxide nanoparticles on the mechanical, thermal and electrical properties of pitch‐derived carbon foam composites

Khan

Zaidi

et al. 2021

Polymer International

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Titanium oxide (TO)-and functionalized nanodiamond (FND)-reinforced carbon foam (CF) composites were prepared by the direct pyrolysis of TO, FND and a mixture of mesophase coal tar pitch. The effects of TO and FND loadings on the microstructure and functional properties of the CF composites were studied. The obtained microstructures of the CF composites showed that both nanofillers have an influential role in the formation of porous morphology of CF. Moreover, the additive aspects of TO and FND were further studied in terms of mechanical, thermal and electrical properties. The results revealed that compressive strength increased up to 20.21 MPa, thermal conductivity was as high as 32.33 W m −1 K −1 at elevated temperature and electrical conductivity was 23.24 × 10 3 S m −1 . The results show that FND particles are well appropriate to meliorate the fabrication of TO nanoparticles in CF to build up a solid connection between the nanoparticles and CF for the improvement of the mechanical, thermal and electrical properties of CF composites.

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Effect of multi walled carbon nanotubes and diamond nanoparticles on the structure and properties of carbon foams

Cited by 31 publications

References 31 publications

Retracted: A concise review on the elastomeric behavior of electroactive polymer materials

Retracted: A concise review on the elastomeric behavior of electroactive polymer materials

Effect of Graphene Oxide and Multi-Walled Carbon Nanotubes on the Structure and Properties of Pitch Derived Carbon Foam Composites

Synergistic effect of nanodiamond and titanium oxide nanoparticles on the mechanical, thermal and electrical properties of pitch‐derived carbon foam composites

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