Influence of microstructure of graphite precursor on formation of graphite oxide

Синицына, О. В.; Ahmetova, A.; Мешков, Г.; Goncharova, T. A.; Pylev, I.; Смирнова, М. А.; Belov, Yu. K.; Yaminsky, I.

doi:10.22184/1993-8578.2018.81.2.170.172

Cited by 1 publication

(2 citation statements)

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“…Furthermore, blisters can appear at the most defective areas of the grain boundary, for example, at a triple junction of the grain boundaries, as can be seen in figure 6. We assume that this explains why only the very first intercalation/deintercalation run is observed in HOPG-flex According to [40,45], the number and the height of atomic steps on the basal surface in HAPG is even much smaller than in HOPG-flex, the grains are several times larger, and the grain boundary is ideal. Therefore, in HAPG, under given experimental conditions, the intercalation reaction is missed compared to the simple carbon oxidation reaction.…”

Section: Discussionmentioning

confidence: 98%

“…Accoding to [40,43], the number and the height of atomic steps on the basal surface in HAPG is even much smaller than in HOPG-flex, the grains are several times larger, and the grain boundary is ideal. Therefore, in HAPG, under given experimental conditions, the intercalation reaction is missed compared to the simple carbon oxidation reaction.…”

Section: Discussionmentioning

confidence: 99%

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Electrochemical scanning probe analysis used as a benchmark for carbon forms quality test

Bussetti

Yivlialin²,

Ciccacci³

et al. 2021

J. Phys.: Condens. Matter

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Carbon forms (graphite, pyrolytic graphite, highly oriented pyrolytic graphite (HOPG), glassy carbon, carbon foam, graphene, buckypaper, etc) are a wide class of materials largely used in technology and energy storage. The huge request of carbon compounds with reliable and tunable physical and chemical properties is tackled by contriving new production protocols and/or compound functionalizations. To achieve these goals, new samples must be tested in a trial-and-error strategy with techniques that provide information in terms of both specimen quality and properties. In this work, we prove that electrochemical scanning probe techniques allow testing the performances of carbon compounds when are used as an electrode inside an electrochemical cell. Comparing the results with a reference sample (namely, HOPG) gives an insight on defects in the specimen structure, performances, and possible applications of the new samples. In this study, we concentrate on traditional carbon forms already employed in many fields versus new recently-developed specimens, in view of possible applications to the field of energy storage.

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Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%