Article In: orcid, scopus

Simultaneous Synthesis and Nitrogen Doping of Free-Standing Graphene Applying Microwave Plasma

Materials

Tsyganov D.; Bundaleska N.; Tatarova E. — 2020

Key information

Authors:

Tsyganov D. (Ana Inês Vieitas de Amaral Dias); Bundaleska N. (Neli Danchova Bundaleska); Henriques J. (Júlio Paulo dos Santos Duarte Vieira Henriques); Felizardo E. (Edgar Martinho da Silva Felizardo); Dias A.; Abrashev M.; Kissovski J.; do Rego A.M.B. (Ana Maria Pereira Lopes Redondo Botelho do Rego); Ferraria A.M. (Ana Maria da Conceição Ferraria); Tatarova E. (Elena Stefanova Tatarova)

Published in

09/22/2020

Abstract

<jats:p>An experimental and theoretical investigation on microwave plasma-based synthesis of free-standing N-graphene, i.e., nitrogen-doped graphene, was further extended using ethanol and nitrogen gas as precursors. The in situ assembly of N-graphene is a single-step method, based on the introduction of N-containing precursor together with carbon precursor in the reactive microwave plasma environment at atmospheric pressure conditions. A previously developed theoretical model was updated to account for the new reactor geometry and the nitrogen precursor employed. The theoretical predictions of the model are in good agreement with all experimental data and assist in deeper understanding of the complicated physical and chemical process in microwave plasma. Optical Emission Spectroscopy was used to detect the emission of plasma-generated ‘‘building units’’ and to determine the gas temperature. The outlet gas was analyzed by Fourier-Transform Infrared Spectroscopy to detect the generated gaseous by-products. The synthesized N-graphene was characterized by Scanning Electron Microscopy, Raman, and X-ray photoelectron spectroscopies.</jats:p>

Publication details

Authors in the community:

Title of the publication container

Materials

First page or article number

4213

Last page

4213

Volume

13

Issue

18

ISSN

1996-1944

DOI

10.3390/ma13184213

Fields of Science and Technology (FOS)

physical-sciences - Physical sciences

Publication language (ISO code)

eng - English

Rights type:

Restricted access