A review on the use of glassy carbon in advanced technological applications

Vieira, Leonardo de Souza

doi:10.1016/j.carbon.2021.10.022

Cited by 50 publications

(24 citation statements)

References 239 publications

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“…A complete and detailed review of the areas of technological application of synthetic D sp 2 C (glassy carbon) was presented in [ 1 , 80 ]. The similarity of the structural characteristics and electrophysical properties of natural and synthetic D sp 2 C suggests the interchangeability of these materials in technological processes.…”

Section: Technological Applications Of Electrophysical Properties Of ...mentioning

confidence: 99%

“…In recent years, the number of studies reporting the successful use of disordered sp 2 carbon (D sp 2 C) materials in various technological processes is growing. A recent review article about the use of synthetic glassy carbon in advanced technological applications [ 1 ] clearly shows rapid technological progress in this field. At the same time, the production of materials with a glassy carbon structure is associated with several environmentally dirty processes.…”

Section: Introductionmentioning

confidence: 99%

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Electrophysical Properties and Structure of Natural Disordered sp2 Carbon

Golubev

Антонец

2022

Nanomaterials

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The progress in the practical use of glassy carbon materials has led to a considerable interest in understanding the nature of their physical properties. The electrophysical properties are among the most demanded properties. However, obtaining such materials is associated with expensive and dirty processes. In nature, in the course of geological processes, disordered sp2 carbon substances were formed, the structure of which is in many respects similar to the structure of glassy carbon and black carbon, and the electrical properties are distinguished by a high-energy storage potential and a high efficiency of shielding electromagnetic radiation. Given the huge natural reserves of such carbon (for example, in the shungite rocks of Karelia) and the relative cheapness and ease of producing materials from it, the study of potential technological applications and the disclosure of some unique electrophysical properties are of considerable interest. In this paper, we present an overview of recent studies on the structure, electrophysical properties, and technological applications of natural disordered sp2 carbon with the addition of novel authors’ results.

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Section: Technological Applications Of Electrophysical Properties Of ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrophysical Properties and Structure of Natural Disordered sp2 Carbon

Golubev

Антонец

2022

Nanomaterials

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“…Usually, GC was thought to have low reactivity or good chemical inertness for the presence of fullerene structures in GC. 4 However, more and more works have shown that GC is not very chemically stable. Kelemen and Freund found that the surfaces of GC had changed and generated plentiful carboxyl groups after HNO 3 treatment.…”

Section: ■ Introductionmentioning

confidence: 99%

Complete Degradation of Glassy Carbon Microspheres into Carbon Nanostructures: Implications for Sensing

Huang

Tan

Sun

et al. 2022

ACS Appl. Nano Mater.

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Glassy carbon (GC) is a well-known carbon material consisting of sp 2 hybrid carbon and having fullerene-like nanostructures. GC is recognized to have several advantages, such as good electroconductivity, low density, gas-and liquid-impermeability, high resistance to graphitization, unusual hardness, and good chemical inertness. However, in our recent investigation, we found for the first time that microsized GC microspheres could be completely transformed into nanostructures by concentrated nitric acid (HNO 3 ) treatment, showing that GC did not have good chemical inertness upon exposure to oxidizing acids such as HNO 3 . The resultant products contain large amounts of GC-based graphene-like quantum dots, graphene-like oxide nanosheets, and some non-degradable graphite-like nanoparticles. This work not only provides an insight into chemical properties and structures of GC but also suggests an easy and efficient way to obtain strongly fluorescent and electrochemiluminescent carbon-based quantum dots implicated for sensitive chemo-and bio-sensors.

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“…31−33 The MF is a polycondensate containing melamine (C 3 H 6 N 6 ), formaldehyde (CH 2 O), and polyoxymethylene ([CH 2 O] n ) with an antioxidation agent. 34 MFs are primarily composed of nitrogen and hydrogen and have a lower carbon content than other common carbon sources, such as poly(furfuryl alcohol), 35 sucrose, 36 phenolic resin, 37 and polyacrylonitrile. 38 No oxygen atoms are incorporated into the structure when melamine is cross-linked with methylene bonds to form the foam (Figure S2).…”

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confidence: 99%

“…39 Upon carbonization, the lower carbon content and lack of oxygen leads to a network of slender carbon strands and a reduction in mass and volume are observed as the network transforms into amorphous carbon. 30,37,40 Imaging of the network with SEM showed a decrease in the average strand thickness from 4.0 to 1.7 μm as the MF is transformed into the CF (Figure 1b,c). Nitrogen pycnometry showed the melamine foam and CF to have over 99% open cell porosity.…”

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confidence: 99%

Evaluating the Physisorption and Chemisorption of Iodine on Bismuth-Functionalized Carbon Foams

Baskaran

Ali

Riley

et al. 2022

ACS Materials Lett.

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Bismuth-containing carbon materials have been shown to be highly promising sorbents for the capture of radioiodine. However, there is still a need to understand the effects of carbon and bismuth on the iodine sorption mechanism. In this study, we show the difference in the physical and chemical sorption of iodine under different bismuth loading conditions. Highly porous and nonfriable conductive carbon foams were prepared, and bismuth was electrodeposited to provide strong iodine binding sites. For pure carbon foams, equal ratios of physisorbed and chemisorbed iodine− carbon phases were detected before desorption. As the concentration of bismuth increased, the chemisorption between bismuth and iodine dominated the total capture mechanism, and physisorption was almost completely eliminated. Additionally, chemisorption of iodine depended upon the size and specific surface area of the bismuth clusters present within the framework of the foam.

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A review on the use of glassy carbon in advanced technological applications

Cited by 50 publications

References 239 publications

Electrophysical Properties and Structure of Natural Disordered sp2 Carbon

Electrophysical Properties and Structure of Natural Disordered sp2 Carbon

Complete Degradation of Glassy Carbon Microspheres into Carbon Nanostructures: Implications for Sensing

Evaluating the Physisorption and Chemisorption of Iodine on Bismuth-Functionalized Carbon Foams

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