Easy method to prepare N-doped carbon nanotubes by ball milling

• Type: Article in International Scientific Journal
• Date: 2015

Authors

O. S. G. P. Soares (Author) FEUP; R. P. Rocha (Author) FEUP; A. G. Gonçalves (Author) FEUP; J. L. Figueiredo (Author) FEUP; J. J. M. Orfão (Author) FEUP; M. F. R. Pereira (Author) FEUP

Journal

Title: Carbon

Vol. 91

Pages: 114-121

ISSN: 0008-6223

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 46 Citations

Scopus - 73 Citations

INSPEC

Associated Projects

LSRE-LCM - Laboratório de Processos de Separação e Reação - Laboratório de Catálise e Materiais

Other information

Authenticus ID: P-00G-5V6

DOI: 10.1016/j.carbon.2015.04.050

Abstract (EN): N-doped carbon materials are promising metal-free catalysts for a number of applications. In this work, a cost effective and easy method to prepare N-doped carbon nanotubes by ball milling was developed, which avoids the use of solvents and production of wastes. Melamine and urea were used as nitrogen precursors. The textural and chemical properties of the N-doped materials were characterized by N-2 adsorption at -196 degrees C, temperature programmed desorption, elemental analysis, X-ray photoelectron spectroscopy and thermogravimetric analysis. The highest efficiency of N-doping was obtained with melamine. This method leads to the incorporation of large amounts of N-groups, namely quaternary nitrogen, pyridinic, and pyrrolic groups.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8