HIGH TEMPERATURE ACIDIC OXIDATION OF MULTIWALLED CARBON NANOTUBES AND SYNTHESIS OF GRAPHENE QUANTUM DOTS

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KUSHWAHA NEELAM; MITTAL JAGJIWAN; PANDEY SHIFA; KUMAR ROBIN

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Journal Paper

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Journal: International Journal of Nano Dimension Year:2018 | Volume:9 | Issue:2 Page(s): 191-197

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Information Journal Paper

Title

HIGH TEMPERATURE ACIDIC OXIDATION OF MULTIWALLED CARBON NANOTUBES AND SYNTHESIS OF GRAPHENE QUANTUM DOTS

Author(s)

KUSHWAHA NEELAM | MITTAL JAGJIWAN | PANDEY SHIFA | KUMAR ROBIN | Issue Writer Certificate

Keywords

CARBON NANOTUBES

ELECTRON MICROSCOPY

GRAPHENE QUANTUM DOTS

OXIDATION

PHOTOLUMINESCENCE

UV VISIBLE SPECTROSCOPY

Abstract

The acid OXIDATION of carbon nanotube generally results in opening the close ends of the nanotube and to make surface modifications. Herewith, Multiwall CARBON NANOTUBES (MWCNTs) were oxidized in acids at high temperature experimental conditions which led to the formation of GRAPHENE QUANTUM DOTS (GQDs). High resolution transmission electron microscope (HRTEM), energy dispersive X-ray spectroscopy (EDS), IR Infrared study showed the formation of 5-10 nm diameter GQDs and their crystalline structure having the inter-planner distance of 2.40 Å and 2.14 Å were confirmed by the electron diffraction. The UV VISIBLE SPECTROSCOPY showed the lowest exciton peak at 4eV. PHOTOLUMINESCENCE (PL) studies showed the PHOTOLUMINESCENCE peak in visible range which is independent of excitation wavelengths. A mechanism for the formation of highly crystalline GRAPHENE QUANTUM DOTS during the high temperature acid OXIDATION of MWCNTs is proposed in the paper.

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APA: Copy

KUSHWAHA, NEELAM, MITTAL, JAGJIWAN, PANDEY, SHIFA, & KUMAR, ROBIN. (2018). HIGH TEMPERATURE ACIDIC OXIDATION OF MULTIWALLED CARBON NANOTUBES AND SYNTHESIS OF GRAPHENE QUANTUM DOTS. INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND), 9(2), 191-197. SID. https://sid.ir/paper/322393/en

Vancouver: Copy

KUSHWAHA NEELAM, MITTAL JAGJIWAN, PANDEY SHIFA, KUMAR ROBIN. HIGH TEMPERATURE ACIDIC OXIDATION OF MULTIWALLED CARBON NANOTUBES AND SYNTHESIS OF GRAPHENE QUANTUM DOTS. INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND)[Internet]. 2018;9(2):191-197. Available from: https://sid.ir/paper/322393/en

IEEE: Copy

NEELAM KUSHWAHA, JAGJIWAN MITTAL, SHIFA PANDEY, and ROBIN KUMAR, “HIGH TEMPERATURE ACIDIC OXIDATION OF MULTIWALLED CARBON NANOTUBES AND SYNTHESIS OF GRAPHENE QUANTUM DOTS,” INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND), vol. 9, no. 2, pp. 191–197, 2018, [Online]. Available: https://sid.ir/paper/322393/en

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