TY - JOUR

T1 - Surface Engineering of Multi-Walled Carbon Nanotubes via Ion-Beam Doping: Pyridinic and Pyrrolic Nitrogen Defect Formation

AU - Korusenko, Petr

AU - Kharisova, Ksenia

AU - Knyazev, Egor

AU - Levin, Oleg

AU - Vinogradov, Alexander

AU - Alekseeva, Elena

PY - 2023/10/8

Y1 - 2023/10/8

N2 - In this study, we present an innovative ion-beam doping technique for the controlled modification of the near-surface region of multi-walled carbon nanotubes (MWCNTs) aimed at creating pyridinic and pyrrolic nitrogen defects in their walls. This method involves the irradiation of MWCNTs with nitrogen ions using a high-dose ion implanter, resulting in the incorporation of nitrogen atoms into the nanotube structure. The structural and chemical changes induced by the ion-beam treatment were thoroughly characterized. Scanning electron microscopy (SEM) analysis revealed subtle changes in nanotube morphology, while X-ray diffraction (XRD) measurements exhibited altered peak intensities and a shift in the (002) reflection peak, indicating structural modifications, which correlates with transmission electron microscopy (TEM) data. X-ray photoelectron spectroscopy (XPS) analysis confirmed the successful embedding of nitrogen, mainly in pyridinic and pyrrolic configurations, as evidenced by the presence of corresponding lines in the N1s spectrum. Our findings demonstrate the feasibility of precisely engineering nitrogen defects in MWCNTs using the ion-beam doping technique. This approach is expected to be promising for the use of carbon nanotubes surface-functionalized with nitrogen atoms in the development of new devices for electronics, electrochemistry, catalysis, etc.

AB - In this study, we present an innovative ion-beam doping technique for the controlled modification of the near-surface region of multi-walled carbon nanotubes (MWCNTs) aimed at creating pyridinic and pyrrolic nitrogen defects in their walls. This method involves the irradiation of MWCNTs with nitrogen ions using a high-dose ion implanter, resulting in the incorporation of nitrogen atoms into the nanotube structure. The structural and chemical changes induced by the ion-beam treatment were thoroughly characterized. Scanning electron microscopy (SEM) analysis revealed subtle changes in nanotube morphology, while X-ray diffraction (XRD) measurements exhibited altered peak intensities and a shift in the (002) reflection peak, indicating structural modifications, which correlates with transmission electron microscopy (TEM) data. X-ray photoelectron spectroscopy (XPS) analysis confirmed the successful embedding of nitrogen, mainly in pyridinic and pyrrolic configurations, as evidenced by the presence of corresponding lines in the N1s spectrum. Our findings demonstrate the feasibility of precisely engineering nitrogen defects in MWCNTs using the ion-beam doping technique. This approach is expected to be promising for the use of carbon nanotubes surface-functionalized with nitrogen atoms in the development of new devices for electronics, electrochemistry, catalysis, etc.

KW - multi-walled carbon nanotubes (MWCNTs)

KW - modification

KW - nitrogen ion beam irradiation

KW - pyrrolic and pyridinic nitrogen inclusions

KW - scanning electron microscopy (SEM)

KW - transmission electron microscopy (TEM)

KW - X-ray diffraction (XRD)

KW - X-ray photoelectron spectroscopy

KW - X-ray diffraction (XRD)

KW - X-ray photoelectron spectroscopy

KW - modification

KW - multi-walled carbon nanotubes (MWCNTs)

KW - nitrogen ion beam irradiation

KW - pyrrolic and pyridinic nitrogen inclusions

KW - scanning electron microscopy (SEM)

KW - transmission electron microscopy (TEM)

UR - https://www.mendeley.com/catalogue/ce9b791b-6c4c-321b-b485-86a58012640e/

U2 - 10.3390/app131911057

DO - 10.3390/app131911057

M3 - Article

VL - 13

JO - Applied Sciences (Switzerland)

JF - Applied Sciences (Switzerland)

SN - 2076-3417

IS - 19

M1 - 11057

ER -