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Влияние импульсного ионного пучка на электронную структуру атомов азота в многостенных углеродных нанотрубках, легированных азотом

Влияние импульсного ионного пучка на электронную структуру атомов азота в многостенных углеродных нанотрубках, легированных азотом

Abstract

The changes of the chemical state of nitrogen atoms in the structure of nitrogen-doped multiwalled carbon nanotubes (N-MWCNTs) after impact of pulsed ion beam at various parameters of the beam (energy density, number of pulses) have been investigated with the use of X-ray photoelectron spectroscopy (XPS). It has been established that irradiation leads to a reduction of the total amount of nitrogen in N-MWCNTs. The single pulse irradiation of ion beam at the energy densities of 0,5; 1; 1,5 J/cm2 leads to restructuring of the nitrogen from pyridinic and pyrrolic configuration to graphitic state.

С использованием рентгеновской фотоэлектронной спектроскопии (XPS) исследованы изменения химического состояния атомов азота в структуре азот-допированных многослойных углеродных нанотрубок (N-МУНТ) в результате воздействия на них импульсного ионного пучка при различных его параметрах (плотность энергии, число импульсов). Установлено, что облучение вызывает уменьшение общего количества азота в N-МУНТ. Один импульс облучения пучком ионов при плотности энергии 0,5, 1 и 1,5 Дж/см2 приводит к перестройке азота из пиридиновой и пиррольной конфигурации в графитоподобное состояние.

Keywords

АЗОТ-ДОПИРОВАННЫЕ МНОГОСТЕННЫЕ УГЛЕРОДНЫЕ НАНОТРУБКИ,РЕНТГЕНОФОТОЭЛЕКТРОННАЯ СПЕКТРОСКОПИЯ,ИМПУЛЬСНЫЙ ИОННЫЙ ПУЧОК,NITROGEN-DOPED MULTIWALLED CARBON NANOTUBES,N NANOTUBES,X-RAY PHOTOELECTRON SPECTROSCOPY,PULSED ION BEAM

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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