Unveiling the thermal kinetics and scissoring mechanism of neolatry polyethylene/reduced graphite oxide nanocomposites

Yee, Toh Guat; Ong, Hui Lin; Bindumadhavan, Kartick; Doong, Ruey‐an

doi:10.1016/j.jaap.2017.01.005

Cited by 17 publications

(7 citation statements)

References 46 publications

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“…SEM images obtained show that rGO and TNT were successfully synthesized. As shown in Figure 3 A, sheets of rGO are found to be stacked together as expected [ 14 ]. Furthermore, the obtained image of TNT in Figure 3 B showed randomly arranged tubes typical to hydrothermal reaction path in contrast to highly organized arrayed TNTs synthesized using electrochemical means [ 12 , 19 ].…”

Section: Resultssupporting

confidence: 73%

“…As shown in Figure 1 , the XRD of GO had a sharp peak at 10° as expected [ 13 ]. This peak corresponds to (001) diffraction plane and 0.848 nm interlayer spacing caused by oxygenated functional groups in the carbon allotrope such as hydroxyls, epoxides, carbonyls, and carboxyls [ 14 , 16 ]. Furthermore, the XRD of synthesized pure rGO recorded peaks at 24° and 43°.…”

Section: Resultsmentioning

confidence: 99%

“…Synthesis of rGO proceeded in two steps: the conversion of graphite to graphene oxide (GO), and the conversion of GO to rGO [ 13 , 14 ]. For synthesis of GO, the reagents used were graphite (2 g), H 2 SO 4 (225 mL), H 3 PO 4 (25 mL), and KMnO 4 (6 g).…”

Section: Methodsmentioning

confidence: 99%

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Synthesis of Reduced Graphene Oxide/Titanium Dioxide Nanotubes (rGO/TNT) Composites as an Electrical Double Layer Capacitor

et al. 2018

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Composites of synthesized reduced graphene oxide (rGO) and titanium dioxide nanotubes (TNTs) were examined and combined at different mass proportions (3:1, 1:1, and 1:3) to develop an electrochemical double layer capacitor (EDLC) nanocomposite. Three different combination methods of synthesis—(1) TNT introduction during GO reduction, (2) rGO introduction during TNT formation, and (3) TNT introduction in rGO sheets using a microwave reactor—were used to produce nanocomposites. Among the three methods, method 3 yielded an EDLC nanomaterial with a highly rectangular cyclic voltammogram and steep electrochemical impedance spectroscopy plot. The specific capacitance for method 3 nanocomposites ranged from 47.26–165.22 F/g while that for methods 1 and 2 nanocomposites only ranged from 14.03–73.62 F/g and 41.93–84.36 F/g, respectively. Furthermore, in all combinations used, the 3:1 graphene/titanium dioxide-based samples consistently yielded the highest specific capacitance. The highest among these nanocomposites is 3:1 rGO/TNT. Characterization of this highly capacitive 3:1 rGO/TNT EDLC composite revealed the dominant presence of partially amorphous rGO as seen in its XRD and SEM with branching crystalline anatase TNTs as seen in its XRD and TEM. Such property showed great potential that is desirable for applications to capacitive deionization and energy storage.

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Section: Resultssupporting

confidence: 73%

Section: Resultsmentioning

confidence: 99%

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Synthesis of Reduced Graphene Oxide/Titanium Dioxide Nanotubes (rGO/TNT) Composites as an Electrical Double Layer Capacitor

et al. 2018

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“…Figure (b) shows a sharp peak at 2 θ = 10.8° are attributed to GO according to Ref. . In the unpolished coating, GO close to the coating surface is easy to be oxidized.…”

Section: Resultsmentioning

confidence: 62%

Effect of doping graphene oxide on the structure and properties of SiO₂ based high emissivity coatings

Song

et al. 2019

J of Applied Polymer Sci

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High emissivity coatings have received a great attention due to their energy saving capability for using in spacecraft and industrial furnaces applications. In this study, a feasible spray deposition method was employed to prepare a high emissivity coating on Kovar alloy substrate with porous structure after heat treatment. Graphene oxide was used to dope coating to improve its emissivity. The emissivity enhancement mechanisms of the graphene oxide doped SiO2 coatings have been investigated. Results show that coating emissivity can be significantly improved (6.41 and 9.64% of coating emissivity at 500 and 800°C, respectively) by doping graphene oxide. Thus, this study proposed a feasible and effective method to prepare high emissivity coatings. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48794.

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“…DSC measurements of DINA at different heating rates (Figure ) were also studied so that they can be compared with the thermal behaviors of the N ‐nitration liquid. The Kissinger model and the Flynn–Wall–Ozawa model were both employed to calculate the kinetic parameters (apparent activation energy ( E ) and pre‐exponential constant ( A )) of the decomposition reaction of DINA and the DINA nitration liquid. The results were showed in Table .…”

Section: Resultsmentioning

confidence: 99%

Transformation and Stability of N‐Nitrodiethanolamine Dinitrate Nitration Liquid System under Thermal and Mechanical Stimulation

et al. 2018

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To obtain a deeper understanding of the process involved in the synthesis of N‐nitrodiethanolamine dinitrate (DINA), in this work we carried out systematic studies on the transformation and stability of the N‐nitration liquid and DINA. The thermal decomposition processes and dynamic characteristics for both the N‐nitration liquid and DINA were carried out by thermal analysis methods and the mechanism for the decrease of stability of the N‐nitration liquid was proposed according to experimental results. Mechanical stimulation of the N‐nitration liquid and DINA were also studied by friction and impact sensitivity testing. The experimental results showed that the N‐nitration liquid is highly sensitive to temperature and can decompose easily when the reaction temperature increases. However, mechanical sensitivity of the N‐nitration was demonstrated to be much lower than that of DINA. Therefore, precise thermal control is the key factor to ensure safety during the preparation of DINA.

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Unveiling the thermal kinetics and scissoring mechanism of neolatry polyethylene/reduced graphite oxide nanocomposites

Cited by 17 publications

References 46 publications

Synthesis of Reduced Graphene Oxide/Titanium Dioxide Nanotubes (rGO/TNT) Composites as an Electrical Double Layer Capacitor

Synthesis of Reduced Graphene Oxide/Titanium Dioxide Nanotubes (rGO/TNT) Composites as an Electrical Double Layer Capacitor

Effect of doping graphene oxide on the structure and properties of SiO₂ based high emissivity coatings

Transformation and Stability of N‐Nitrodiethanolamine Dinitrate Nitration Liquid System under Thermal and Mechanical Stimulation

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Unveiling the thermal kinetics and scissoring mechanism of neolatry polyethylene/reduced graphite oxide nanocomposites

Cited by 17 publications

References 46 publications

Synthesis of Reduced Graphene Oxide/Titanium Dioxide Nanotubes (rGO/TNT) Composites as an Electrical Double Layer Capacitor

Synthesis of Reduced Graphene Oxide/Titanium Dioxide Nanotubes (rGO/TNT) Composites as an Electrical Double Layer Capacitor

Effect of doping graphene oxide on the structure and properties of SiO2 based high emissivity coatings

Transformation and Stability of N‐Nitrodiethanolamine Dinitrate Nitration Liquid System under Thermal and Mechanical Stimulation

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Effect of doping graphene oxide on the structure and properties of SiO₂ based high emissivity coatings