Nitrogen-doped graphene-based materials for advanced oxidation processes

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

Autores

R. P. Rocha (Autor) FEUP; A. G. Gonçalves (Autor) FEUP; L. M. Pastrana-Martínez (Autor) FEUP; B. C. Bordoni (Autor) Outra; O. S. G. P. Soares (Autor) FEUP; J. J. M. Orfão (Autor) FEUP; J. L. Faria (Autor) FEUP; J. L. Figueiredo (Autor) FEUP; A. M. T. Silva (Autor) FEUP; M. F. R. Pereira (Autor) FEUP

Revista

Título: Catalysis Today

Vol. 249

Páginas: 192-198

ISSN: 0920-5861

Editora: Elsevier

Indexação

ISI Web of Knowledge - 34 Citações

ISI Web of Science

Scopus - 46 Citações

Projetos Associados

FREECATS - Doped carbon nanostructures as metal-free catalysts

LA 20 - PROJECTO ESTRATÉGICO - LA 20 - 2013-2014

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

Outras Informações

ID Authenticus: P-00G-2XY

DOI: 10.1016/j.cattod.2014.10.046

Abstract (EN): Nitrogen-doped graphene-based materials were prepared by the modified Hummers method using natural graphite as primary precursor, followed by chemical and thermal reduction processes, and finally ball milled with urea or melamine. The graphene-based materials were characterized at different stages of their synthesis by different techniques (including temperature programmed desorption and X-ray photoelectron spectroscopy) and then tested as metal-free catalysts in the degradation of oxalic acid and phenol by two different oxidation processes: catalytic wet air oxidation (temperature between 413 and 433 K, and 7 bar of O-2) and catalytic ozonation (room temperature and atmospheric pressure). The melamine treated sample was always found to be more active due to the presence of nitrogen groups and adequate surface area available.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7