Copper-Graphene Composite: Electrochemical Synthesis and Structural Characterization

Ni’maturrohmah, Dwi; Maharani, Dina Kartika; Ruzicka, Ossama; Gitasari, Ulfa Hardila; Adhitama, Egy; Saraswati, Teguh Endah

doi:10.1088/1757-899x/333/1/012002

Cited by 4 publications

(3 citation statements)

References 7 publications

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“…This is attributed to the slight shift in the peaks of both carbon and copper to 44°. Similar to the simulated peaks recorded by Ni'maturrohmah et al [20] that are 26.7º; 31.9º and 45.8º, for graphene loaded on copper, we recorded similar peaks for copper loaded on graphene at 26.5°, 44° and 54.5°. Licht et al [25], produced electrodes for lithium-ion battery and recorded peaks as the same with that obtained in this work.…”

Section: Structural Analysis With X-ray Diffractionsupporting

confidence: 90%

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Synthesis and Characterization of Graphene-Cu Composite Via Hydrothermal Method

Omoniyi¹,

Alabi²,

Salawu³

et al. 2022

JSMPM

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In recent times, composites of graphene are being produced for purposes such as electrodes and gas sensors among others. The synthesis of graphene composites was done via various methods available. Loading copper on graphene like every other transition metal to obtain composite with wide band gap has not been harnessed as such for the similar purposes. In this research, graphene-copper (G-Cu) composites were synthesized via hydrothermal method, using glucose as catalyst, with 5, 15 and 25 wt% copper compositions. In this paper, G-Cu composite is synthesized with different wt% ratio and were characterized using scanning electron microscope (SEM), X-ray diffractometer (XRD) and ultraviolet–visible spectroscopy (UV-Vis). Elastic/plastic alloy was formed by carbon and copper around 2θ = 44°. The grain sizes were observed to decrease proportionally with increasing temperature. The effect of composition fluctuates the XRD intensity peaks. The band gaps for 5 wt% (as-grown) reduced as temperature increases. Short calcination duration of the composites is observed to have reduced band gaps value to that of longer duration. The thermal treatment of (G-Cu) is observed to cause thermal exfoliation and elastic/plastic alloy formation by Cu and amorphous carbon.

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Section: Structural Analysis With X-ray Diffractionsupporting

confidence: 90%

“…Many methods have surfaced recently among which the electrochemical method by Ni'maturrohmah et al [20] to upscale graphene at low cost is one of them. Nevertheless, hydrothermal and solvothermal solution methods are still convenient and popular for preparing graphene-metal and graphene-metal oxide nano-composites as a result of homogeneity of constituents.…”

mentioning

confidence: 99%

Synthesis and Characterization of Graphene-Cu Composite Via Hydrothermal Method

Omoniyi¹,

Alabi²,

Salawu³

et al. 2022

JSMPM

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“…Several methods of combining metals with graphene which are over reported are hydrothermal [ 23 ], microwave-assisted [ 24 ], self-assembly [ 25 ], and electrolysis [ 26 ]. Cu metal is selected as the particle embedded in C—π because of its considerable abundance in nature, low cost, and its excellent electrical and thermal conductivity.…”

Section: Introductionmentioning

confidence: 99%

The New Materials for Battery Electrode Prototypes

et al. 2023

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In this article, we present the performance of Copper (Cu)/Graphene Nano Sheets (GNS) and C—π (Graphite, GNS, and Nitrogen-doped Graphene Nano Sheets (N—GNS)) as a new battery electrode prototype. The objectives of this research are to develop a number of prototypes of the battery electrode, namely Cu/GNS//Electrolyte//C—π, and to evaluate their respective performances. The GNS, N—GNS, and primary battery electrode prototypes (Cu/GNS/Electrolyte/C—π) were synthesized by using a modified Hummers method; the N-doped sheet was obtained by doping nitrogen at room temperature and the impregnation or the composite techniques, respectively. Commercial primary battery electrodes were also used as a reference in this research. The Graphite, GNS, N—GNS, commercial primary batteries electrode, and battery electrode prototypes were analyzed using an XRD, SEM-EDX, and electrical multimeter, respectively. The research data show that the Cu particles are well deposited on the GNS and N—GNS (XRD and SEM—EDX data). The presence of the Cu metal and electrolytes (NH4Cl and MnO2) materials can increase the electrical conductivities (335.6 S cm−1) and power density versus the energy density (4640.47 W kg−1 and 2557.55 Wh kg−1) of the Cu/GNS//Electrolyte//N—GNS compared to the commercial battery (electrical conductivity (902.2 S cm−1) and power density versus the energy density (76 W kg−1 and 43.95 W kg−1). Based on all of the research data, it may be concluded that Cu/GNS//Electrolyte//N—GNS can be used as a new battery electrode prototype with better performances and electrical activities.

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