A facile method for coal to graphene oxide and its application to a biosensor

Lee, Sang Soo; Mahajan, Roop L.

doi:10.1016/j.carbon.2021.05.007

Cited by 54 publications

(39 citation statements)

References 76 publications

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“…Two of the authors of this review article, Lee and Mahajan, have developed a novel one-pot process for the synthesis of graphene from coal that is not only simpler, cheaper, and scalable but is also environment-friendly. 234 It is expected that the graphene materials so produced would provide cost-effective and large-scale manufacture of FSHSCs for practical applications.…”

Section: Next Generation Of Fshscs For Ioe Applicationsmentioning

confidence: 99%

Flexible solid-state hybrid supercapacitors for the internet of everything (IoE)

Lee

Yang

Kim

et al. 2022

Energy Environ. Sci.

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109

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Section: Next Generation Of Fshscs For Ioe Applicationsmentioning

confidence: 99%

Flexible solid-state hybrid supercapacitors for the internet of everything (IoE)

Lee

Yang

Kim

et al. 2022

Energy Environ. Sci.

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109

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“…The authors assert that their new process, which utilizes coal as the precursor, has an order of magnitude lower cost compared to that of the modified Hummers’ method that employs graphite as the precursor. The cost savings are attributed to relatively lower usage of chemicals (only 16 M HNO 3 ) …”

Section: Introductionmentioning

confidence: 99%

Simplified One-Pot Synthesis of Graphene Oxide from Different Coals and its Potential Application in Enhancing the Mechanical Performance of GFRP Nanocomposites

Garg,

Basu,

Lee

et al. 2023

ACS Appl. Nano Mater.

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This paper presents new data on the feasibility of using a facile one-pot process with HNO 3 to synthesize graphene oxide (GO) from bituminous coal (BC) as well as anthracite coal procured from coalfields in India. The experiments demonstrate that a reduced concentration of 5 M HNO 3 and a shorter oxidation time period of 5 h are sufficient for bituminous coal, whereas semianthracite coal (AC) requires 16 M HNO 3 and 72 h of oxidation time. The synthesized graphene oxide from bituminous coal (BC-GO) and semianthracite coal (AC-GO) was characterized using various techniques including SEM-EDX, FTIR, XRD, XPS, BET-BJH, LRS, TEM, SAED, AFM, and DLS. These results were then compared with those for GO derived from graphite and purified AC using modified Hummers' method. The characterization data revealed both similarities and significant differences in the properties of these materials. While TEM analysis revealed similar sheet-like morphology for both coal-derived and graphite-derived GO, XPS and FTIR data indicated the presence of graphitic compositions with observable peaks for C�C and C�O, as well as abundant functional groups containing oxygen and nitrogen. Surface and structure properties differed between coal-derived and graphite-derived GOs. Raman spectra of BC-GO showed a lower I D , indicating fewer defects and preserved graphitic domains due to the use of less concentrated HNO 3 . Furthermore, the paper explores the potential application of coal-derived GO by studying the mechanical properties of glass fiber reinforced polymer nanocomposites with AC-GO as a nanofiller. The results demonstrate that coal-derived GO effectively enhances the mechanical properties of the nanocomposites.

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“…Among these LCPs, coal has been extensively investigated for the synthesis of graphene derivatives. ,− Vijapur et al synthesized uniform graphene films from subbituminous coal via a CVD process. These large-area graphene films possess potential applications in solar cells, photodiodes, and light-emitting diodes as well as in biomedical implants.…”

Section: Introductionmentioning

confidence: 99%

Graphene/Graphene Derivatives from Coal, Biomass, and Wastes: Synthesis, Energy Applications, and Perspectives

2022

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In the last decade, there has been a phenomenal development in the commercially viable, large-scale synthesis of graphene, a multifunctional advanced carbon nanomaterial, which is gaining popularity for its diverse range of applications, especially in energy storage, composites, sensors, and membranes. With the increasing demand, a large number of worldwide research efforts have been employed, resulting in a series of enormous breakthroughs both in its fundamental science and innovative applications. The earlier reviews on graphene show that the increase in the production yield is often accompanied by the generation of substandard graphene quality, making the process unsuited for commercialization. However, recent studies on graphene synthesis have shown the use of naturally available carbonaceous sources for the production of low-cost graphene derivatives is becoming an emerging trend in graphene research. In this present review, the most recent advances in the synthesis of high-quality graphene from solid carbon precursors, particularly abundant coal, biomass, and waste materials, have been extensively discussed along with their potential scalability for commercial production. The quality and yield of these graphene derivatives synthesized through different methods like chemical vapor deposition, exfoliation, laser-induced, microwave irradiation, and chemical methods are also examined to determine the best-suited synthetic methodology from the available literature. The utilization of graphene derivatives in the energy sector was further discussed, particularly in the emerging field of energy storage. Finally, the challenges and future prospects of this study are highlighted to have a better understanding of the current graphene production scenario, with an insight into the most efficient method for synthesizing high-purity low-cost graphene and their potential for scaleup and energy applications in the distant future.

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A facile method for coal to graphene oxide and its application to a biosensor

Cited by 54 publications

References 76 publications

Flexible solid-state hybrid supercapacitors for the internet of everything (IoE)

Flexible solid-state hybrid supercapacitors for the internet of everything (IoE)

Simplified One-Pot Synthesis of Graphene Oxide from Different Coals and its Potential Application in Enhancing the Mechanical Performance of GFRP Nanocomposites

Graphene/Graphene Derivatives from Coal, Biomass, and Wastes: Synthesis, Energy Applications, and Perspectives

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