Adsorption of Nitrogen on Electrochemical Carbon

Hlavatý, Jaromír; Kavan, Ladislav; Rathouský, Jiřı́; Zukal, Arnošt

doi:10.1021/la00011a067

Cited by 8 publications

(16 citation statements)

References 1 publication

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“…Adsorption of N 2 , Ar, benzene, and H 2 O on the water-extracted C-LiF has been studied in detail. [291][292][293][294][295][296][297][298] The determined surface areas vary, depending on the adsorbate and the evaluation method used, from 1080 (benzene, DS method) 296 to 2940 m 2 /g (N 2 , BET method). 292 Extreme values, 3439-4150 m 2 /g, reported by one group 293 are presumably incorrect (vide infra).…”

Section: B Adsorption Propertiesmentioning

confidence: 99%

Electrochemical Carbon

Kavan

1997

Chem. Rev.

Self Cite

158

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Section: B Adsorption Propertiesmentioning

confidence: 99%

Electrochemical Carbon

Kavan

1997

Chem. Rev.

Self Cite

158

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“…Several hypervalent iodonium derivatives are known [9]. The syntheses of bis(carbene) complexes via iododiynes such as IC"CC"CSiMe 3 has been reported [10], while thermolysis within molecular sieves such as MCM-41 results in polymerisation to form novel oligo-ynes [11].…”

Section: Introductionmentioning

confidence: 99%

Iodo-alkynyl- and iodo-butadiynyl-ruthenium complexes

Bruce

Jevric

Parker

et al. 2008

Journal of Organometallic Chemistry

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“…Carbonaceous additives (mesoporous carbon, MP, Aldrich, activated carbon, AC, Aldrich, electrochemical carbon, EC, the latter prepared by a procedure described in Ref. [ 25 ]) was mixed with sulfur (Aldrich, St. Louis, MO, USA) in a mass ratio 1:3. The mixture was mortared and then treated at 155 °C for 15 h under Ar atmosphere in a Teflon container.…”

Section: Methodsmentioning

confidence: 99%

“…Here, we demonstrate the influence of surface area and porosity of carbonaceous additive on the electrochemical performance of an Li–S battery. We compare the performance of composite sulfur cathodes containing mesoporous carbon, commercial activated carbon, and our home-made electrochemical carbon [ 25 ]. In addition, we prepared nanocrystalline TiO 2 /carbon/sulfur composite cathodes and found that the presence of nanocrystalline TiO 2 on a surface of activated carbon further improves its performance.…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline TiO2/Carbon/Sulfur Composite Cathodes for Lithium–Sulfur Battery

et al. 2021

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This paper evaluates the influence of the morphology, surface area, and surface modification of carbonaceous additives on the performance of the corresponding cathode in a lithium–sulfur battery. The structure of sulfur composite cathodes with mesoporous carbon, activated carbon, and electrochemical carbon is studied by X-ray diffraction, nitrogen adsorption measurements, and Raman spectroscopy. The sulfur cathode containing electrochemical carbon with the specific surface area of 1606.6 m2 g−1 exhibits the best electrochemical performance and provides a charge capacity of almost 650 mAh g−1 in cyclic voltammetry at a 0.1 mV s−1 scan rate and up to 1300 mAh g−1 in galvanostatic chronopotentiometry at a 0.1 C rate. This excellent electrochemical behavior is ascribed to the high dispersity of electrochemical carbon, enabling a perfect encapsulation of sulfur. The surface modification of carbonaceous additives by TiO2 has a positive effect on the electrochemical performance of sulfur composites with mesoporous and activated carbons, but it causes a loss of dispersity and a consequent decrease of the charge capacity of the sulfur composite with electrochemical carbon. The composite of sulfur with TiO2-modified activated carbon exhibited the charge capacity of 393 mAh g−1 in cyclic voltammetry and up to 493 mAh g−1 in galvanostatic chronopotentiometry. The presence of an additional Sigracell carbon felt interlayer further improves the electrochemical performance of cells with activated carbon, electrochemical carbon, and nanocrystalline TiO2-modified activated carbon. This positive effect is most pronounced in the case of activated carbon modified by nanocrystalline TiO2. However, it is not boosted by additional coverage by TiO2 or SnO2, which is probably due to the blocking of pores.

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Adsorption of Nitrogen on Electrochemical Carbon

Cited by 8 publications

References 1 publication

Electrochemical Carbon

Electrochemical Carbon

Iodo-alkynyl- and iodo-butadiynyl-ruthenium complexes

Nanocrystalline TiO2/Carbon/Sulfur Composite Cathodes for Lithium–Sulfur Battery

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