Nitrogen-doped graphene-based materials for advanced oxidation processes

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

Authors

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

Journal

Title: Catalysis Today

Vol. 249

Pages: 192-198

ISSN: 0920-5861

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 34 Citations

ISI Web of Science

Scopus - 46 Citations

Associated Projects

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

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7