Design and characterization of novel ternary nanocomposite (rGO-MnO2-PoPDA) product and screening its dielectric properties

Mohammed, Leqaa A.; Majeed, Abdulwahhab H.; Hammoodi, Omar G.; Prakash, Chander; Alheety, Mustafa A.; Buddhi, Dharam; Dadoosh, Safaa A.; Mohammed, Israa K.

doi:10.1007/s12008-022-01020-x

Cited by 7 publications

(7 citation statements)

References 48 publications

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“…This treatment causes some defects and cracks in some parts of the graphite sheets and they appear on examination. It is also noted from these tests that the thickness of the graphene oxide nanosheets does not exceed 15 nm, and this is a clear evidence of the success of the exfoliation process and the preparation of graphene oxide nanosheets 62 …”

Section: Resultsmentioning

confidence: 65%

“…The spectrum of pure graphene oxide, shown in Figure 1A, exhibits numerous peaks at 3432, 1725, 1629, 1412, 1170, and 1053 cm −1 , corresponding to the functional groups OH, CO, CC, COH, and COC, respectively. These peaks are indicative of the successful preparation of graphene oxide and are characteristic peaks of graphene oxide 62 …”

Section: Resultsmentioning

confidence: 96%

“…These peaks are indicative of the successful preparation of graphene oxide and are characteristic peaks of graphene oxide. 62 Figure 1B shows the FTIR spectrum of copper ferrite nanoparticles. It is noted that two peaks appear at 416 and 573 cm À1 .…”

Section: Ftirmentioning

confidence: 99%

“…It is also noted from these tests that the thickness of the graphene oxide nanosheets does not exceed 15 nm, and this is a clear evidence of the success of the exfoliation process and the preparation of graphene oxide nanosheets. 62 Figure 3C,D shows the SEM and TEM measurement of copper ferrite (CuFe 2 O 4 ) prepared by sol-gel method. Through these measurements, it was found that the CuFe 2 O 4 was successfully prepared with nanoparticles at different ranges between 20 and 80 nm.…”

Section: Sem and Temmentioning

confidence: 99%

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Enhanced hydrogen storage capacity of graphene oxide through doping with copper ferrite nanoparticles

Hammoodi,

Mohammed,

Majeed

et al. 2024

Energy Storage

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The aim of this study was to prepare and characterize nanocomposites consisting of graphene oxide (GO) and copper ferrite (CuFe2O4) in different doping ratios (1%‐5%) and investigate their potential for storing hydrogen gas. The prepared nanocomposites were characterized using FTIR, XRD, SEM, and TEM. The results showed that hydrogen storage at 20°C was not possible with GO alone, but the incorporation of different proportions of copper ferrite nanoparticles significantly improved the hydrogen storage properties of the composite materials. The optimal percentage of copper ferrite was found to be around 3%, and it was observed that the percentage of ferrite added is crucial in determining the hydrogen storage properties of the nanocomposites. The best hydrogen storage value of 3.3% was achieved at a temperature of 20°C and a pressure of 80 bar within just 60 seconds. The adsorption of the composite material was found to be of the second type, with a re‐creation coefficient greater than 0.97 for all the materials tested, indicating favorable adsorption. The b value was up to 0, further confirming the favorable adsorption. Overall, the results demonstrate that the incorporation of copper ferrite nanoparticles can significantly improve the hydrogen storage properties of graphene oxide, and careful selection of the doping ratio is necessary to achieve the optimal performance. These findings have potential implications for the development of efficient hydrogen storage materials for clean energy applications.

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Section: Resultsmentioning

confidence: 65%

Section: Resultsmentioning

confidence: 96%

Section: Ftirmentioning

confidence: 99%

Section: Sem and Temmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced hydrogen storage capacity of graphene oxide through doping with copper ferrite nanoparticles

Hammoodi,

Mohammed,

Majeed

et al. 2024

Energy Storage

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“…The (GO) prepared by the modified Hummer method [28].The(MgO) prepared through (sol-jel) method. The binary nanocomposite (GO-MgO) was synthesized by dispersing (0.5 g) of (GO) in 100ml of non-ionic water using an ultrasonic water bath at 25ºC for 1 hour to form a GO solution.…”

Section: Synthesis Of Binary Nanocompositementioning

confidence: 99%

Dielectric Properties of (GO-MgO-PoPDA- PVA) nanocomposite films

Jassim¹,

Dawood²

2023

3C TIC

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In this work, a pure (PVA) polymer film reinforced with magnesium oxide, graphene oxide poly (o-phenylene diamine) (GO-MgO-PoPDA) was created utilizing the solution casting process in various weight ratios (0, 2, 4, 6, 8, 10 wt%). It was investigated how varied weight ratios of the nanoparticles magnesium oxide (MgO) and graphene oxide (GO) affected the Dielectric Properties of nano composite films. FTIR, SEM,X-RAY were used to characterized the nanocomposite. The results of the dielectric properties showed that the values of the alternating electrical conductivity of the prepared films increase when adding (GO-MgO-PoPDA) nanoparticles and with the increase of the frequency of the applied electric field and the increase of the particle content, while the values of the dielectric constant increase with the increase of each of the content of (GO-MgO- PoPDA) nanoparticles, but it decreases with increasing frequency. Whereas, the dielectric loss coefficient of the prepared films decreases when nanoparticles are added and with increasing frequency.

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Effect of direct and indirect in-situ sonochemical synthesis methods of MWCNTs–CoNiFerrite on the hydrogen storage

Abdulkareem,

Alsaffar,

Razzaq

et al. 2024

J Sol-Gel Sci Technol

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Design and characterization of novel ternary nanocomposite (rGO-MnO2-PoPDA) product and screening its dielectric properties

Cited by 7 publications

References 48 publications

Enhanced hydrogen storage capacity of graphene oxide through doping with copper ferrite nanoparticles

Enhanced hydrogen storage capacity of graphene oxide through doping with copper ferrite nanoparticles

Dielectric Properties of (GO-MgO-PoPDA- PVA) nanocomposite films

Effect of direct and indirect in-situ sonochemical synthesis methods of MWCNTs–CoNiFerrite on the hydrogen storage

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