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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2015

Autores

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

Revista

Título: Carbon

Vol. 91

Páginas: 114-121

ISSN: 0008-6223

Editora: Elsevier

Indexação

ISI Web of Knowledge - 46 Citações

Scopus - 73 Citações

INSPEC

Projetos Associados

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

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8