Spectroscopic Study of Nitrogen Distribution in N-Doped Carbon Nanotubes and Nanofibers Synthesized by Catalytic Ethylene-Ammonia Decomposition | Sciact - CRIS-system of Boreskov Institute of Catalysis

Spectroscopic Study of Nitrogen Distribution in N-Doped Carbon Nanotubes and Nanofibers Synthesized by Catalytic Ethylene-Ammonia Decomposition Full article

Journal

Applied Surface Science
ISSN: 0169-4332

Output data

Year: 2018, Volume: 435, Pages: 1273-1284 Pages count : 12 DOI: 10.1016/j.apsusc.2017.11.244

Tags

Carbon nanofibers, Carbon nanotubes, Nitrogen doped, Photoelectron spectroscopy, Synchrotron radiation, TEY-XAS

Authors

Svintsitskiy Dmitry A. ^1,2,3 , Kibis Lidiya S. ^1,3 , Smirnov Dmitry A. ⁴ , Suboch Arina N. ^1,3 , Stonkus Olga A. ^1,3 , Podyacheva Olga Yu. ^1,2,3 , Boronin Andrei I. ^1,3 , Ismagilov Zinfer R. ^1,2

Affiliations

1	Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
2	Institute of Coal Chemistry and Material Science, Kemerovo, 650000, Russia
3	Novosibirsk State University, Novosibirsk, 630090, Russia
4	Institute of Solid State Physics, Dresden University of Technology, D-01069 Dresden, Germany

Funding (1)

Russian Science Foundation

15-13-10043

Carbon and nitrogen species on the surface of carbon nanotubes (N-CNTs) and nanofibers (N-CNFs) were studied by X-ray absorption (XAS) and photoelectron spectroscopy (PES) including the analysis of nitrogen distribution over the depth of materials. The study was performed with a series of bamboo-like carbon nanotubes and nanofibers having the platelet-like and herringbone-like morphology. It was shown that the main nitrogen species in the composition of the studied materials are pyridine, pyrrole (and/or amino groups), graphite-like and oxidized states of nitrogen. In distinction to nanofibers, the bamboo-like nanotubes additionally contain molecular nitrogen encapsulated in the internal hollows. Spectral data for different depths of analysis were obtained by varying the energy of incident radiation. Such an approach revealed that N-CNTs are characterized by non-uniform distribution of chemically bound nitrogen species. Thus, nitrogen enrichment was observed on the external surface and in the internal arches of carbon nanotubes. Nitrogen enrichment in the subsurface region was found for N-CNFs, whereas the full depth analysis of N-distribution was limited by a large diameter of nanofibers.

Svintsitskiy D.A. , Kibis L.S. , Smirnov D.A. , Suboch A.N. , Stonkus O.A. , Podyacheva O.Y. , Boronin A.I. , Ismagilov Z.R.
Spectroscopic Study of Nitrogen Distribution in N-Doped Carbon Nanotubes and Nanofibers Synthesized by Catalytic Ethylene-Ammonia Decomposition
Applied Surface Science. 2018. V.435. P.1273-1284. DOI: 10.1016/j.apsusc.2017.11.244 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Jul 26, 2017
Accepted:	Nov 27, 2017
Published online:	Dec 2, 2017
Published print:	Mar 1, 2018

Web of science:	WOS:000424247500153
Scopus:	2-s2.0-85036466120
Elibrary:	32841511
Chemical Abstracts:	2017:1909346
Chemical Abstracts (print):	168:520052
OpenAlex:	W2773987825

DB	Citing
Web of science	33
Scopus	32
OpenAlex	32