Facile synthesis of few layer graphene from bituminous coal and its application towards electrochemical sensing of caffeine

This study focused on the structural investigation of few-layer graphene (FLG) synthesis from bituminous coal through a catalytic process under microwave heat treatment (MW). The produced FLG has been examined by Raman spectroscopy, XRD, TEM, and AFM. Coal was activated using the potassium hydroxide activation process. The FLG synthesis processing duration was much faster requiring only 20 min under the microwave radiation. To analyse few-layer graphene samples, we considered the three bands, i.e., D, G, and 2D, of Raman spectra. At 1300 °C, the P10% Fe sample resulted in fewer defects than the other catalyst percentages sample. The catalyst percentages affected the structural change of the FLG composite materials. In addition, the Raman mapping showed that the catalyst loaded sample was homogeneously distributed and indicated a few-layer graphene sheet. In addition, the AFM technique measured the FLG thickness around 4.5 nm. Furthermore, the HRTEM images of the P10% Fe sample contained a unique morphology with 2–7 graphitic layers of graphene thin sheets. This research reported the structural revolution with latent feasibility of FLG synthesis from bituminous coal in a wide range.

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Facile synthesis of graphene using a biological method

RSC Advances ◽

10.1039/c5ra25977k ◽

2016 ◽

Vol 6 (21) ◽

pp. 17158-17162 ◽

Cited By ~ 10

Author(s):

Bipinchandra K. Salunke ◽

Beom Soo Kim

Keyword(s):

Liquid Phase ◽

Medicinal Plants ◽

Low Cost ◽

Biological Method ◽

Facile Synthesis ◽

Layer Graphene ◽

Environmentally Safe ◽

Liquid Phase Exfoliation ◽

Few Layer Graphene

A new, facile, low cost, environmentally safe process is demonstrated for the production of few layer graphene by liquid phase exfoliation of graphite using extracts of medicinal plants in water.

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Facile Synthesis of 3D Anode Assembly with Si Nanoparticles Sealed in Highly Pure Few Layer Graphene Deposited on Porous Current Collector for Long Life Li-Ion Battery

Advanced Materials Interfaces ◽

10.1002/admi.201601043 ◽

2017 ◽

Vol 4 (10) ◽

pp. 1601043 ◽

Cited By ~ 39

Author(s):

Manjusha V. Shelke ◽

Hemtej Gullapalli ◽

Kaushik Kalaga ◽

Marco-Tulio F. Rodrigues ◽

Rami Reddy Devarapalli ◽

...

Keyword(s):

Current Collector ◽

Li Ion Battery ◽

Facile Synthesis ◽

Layer Graphene ◽

Si Nanoparticles ◽

Li Ion ◽

Long Life ◽

Few Layer Graphene

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Facile synthesis of few-layer graphene by mild solvent thermal exfoliation of highly oriented pyrolytic graphite

Chemical Engineering Journal ◽

10.1016/j.cej.2013.06.106 ◽

2013 ◽

Vol 231 ◽

pp. 1-11 ◽

Cited By ~ 14

Author(s):

Joanna Su Yuin Chia ◽

Michelle T.T. Tan ◽

Poi SimKhiew ◽

Jit Kai Chin ◽

Hingwah Lee ◽

...

Keyword(s):

Pyrolytic Graphite ◽

Highly Oriented Pyrolytic Graphite ◽

Facile Synthesis ◽

Layer Graphene ◽

Few Layer Graphene

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Facile Synthesis of Few-Layer Graphene with a Controllable Thickness Using Rapid Thermal Annealing

ACS Applied Materials & Interfaces ◽

10.1021/am3000177 ◽

2012 ◽

Vol 4 (3) ◽

pp. 1777-1782 ◽

Cited By ~ 23

Author(s):

Jae Hwan Chu ◽

Jinsung Kwak ◽

Tae-Yang Kwon ◽

Soon-Dong Park ◽

Heungseok Go ◽

...

Keyword(s):

Thermal Annealing ◽

Rapid Thermal Annealing ◽

Facile Synthesis ◽

Layer Graphene ◽

Few Layer Graphene

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Confined nanospace pyrolysis for synthesis of N-doped few-layer graphene-supported yolk–shell carbon hollow spheres for electrochemical sensing

RSC Advances ◽

10.1039/c5ra04961j ◽

2015 ◽

Vol 5 (47) ◽

pp. 37568-37573 ◽

Cited By ~ 5

Author(s):

Sen Liu ◽

Yong Zhang ◽

Ziying Wang ◽

Bo Yu ◽

Shenguan Song ◽

...

Keyword(s):

Hollow Spheres ◽

Electrochemical Sensing ◽

Layer Graphene ◽

Pyrolysis Method ◽

Carbon Hollow Spheres ◽

Few Layer Graphene

A confined nanospace pyrolysis method has been developed for synthesis of N-doped few-layer graphene-supported yolk–shell carbon hollow spheres for electrochemical sensing.

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