2019
DOI: 10.18321/ectj886
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Effect of Acid Treatment on the Functionalization of Surface, Structural and Textural Properties of Carbon Nanotubes Taunit

Abstract: The role of acid treatment of Taunit carbon nanotubes in the formation of oxygen-containing functional groups on its surface as well as morphological and textural properties was studied. Acid treatment was carried out in an HNO3 solution or its mixture with H2SO4 under mild conditions (85 °C/1 h) with subsequent washing with distilled water or without washing. Properties of the initial and oxidized samples were investigated using elemental carbon, hydrogen, nitrogen, oxygen (CHNO) analysis, BET (Brunauer-Emmet… Show more

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Cited by 9 publications
(9 citation statements)
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“…The CNTs were multi-walled nanotubes with an inner diameter 10-20 nm and a specific surface area 180 m 2 /g. Their physicochemical properties were given and discussed in [40].…”
Section: Catalyst Preparationmentioning
confidence: 99%
“…The CNTs were multi-walled nanotubes with an inner diameter 10-20 nm and a specific surface area 180 m 2 /g. Their physicochemical properties were given and discussed in [40].…”
Section: Catalyst Preparationmentioning
confidence: 99%
“…A new peak at 2θ = 56° appeared for the modified MWCNT/GNF-PVDF nanocomposites. The broadening of the graphite peak suggests a decrease in the crystallite size of graphite after the oxidation, whereas an increase in the intensity of the graphite peak for the oxidized samples confirms an increase in the graphite component in the samples due to the dissolution of amorphous carbon in acids [ 50 ].…”
Section: Resultsmentioning
confidence: 99%
“…The average lattice parameter c is equal to ~ 6.81 Å, and the size along the direction perpendicular to graphite layers, ~ 6 nm. The presence of mixed nickel-magnesium oxide and the metallic nickel phase is caused by the synthesis procedure of CNTs used as the support [29].…”
Section: Resultsmentioning
confidence: 99%
“…Metal-carbon materials M/CNTs (M = Ce, Сu, Mo) were synthesized by incipient wetness impregnation. To this end, Taunit carbon nanotubes (NanoTechCenter Ltd., Tambov, Russia) [28,29] were impregnated with an aqueous solution of the corresponding metal salt (Ce…”
Section: Methodsmentioning
confidence: 99%