Metal-Free Catalytic Wet Oxidation: From Powder to Structured Catalyst Using N-Doped Carbon Nanotubes

• Tipo: Artigo em Revista Científica Internacional
• Data: 2018

Autores

Raquel P. Rocha (Autor) Outra; Diogo Santos (Autor) FEUP; Olívia Salomé M. P. Soares (Autor) FEUP; Adrián M. T. Silva (Autor) FEUP; Manuel Fernando R. Pereira (Autor) FEUP; José L. Figueiredo (Autor) Outra

Revista

Título: Topics in Catalysis

Vol. 61 Nº 18-19

Páginas: 1957-1966

ISSN: 1022-5528

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 1 Citação

ISI Web of Science

Scopus - 3 Citações

Projetos Associados

AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable North Region of Portugal2020

Outras Informações

ID Authenticus: P-00P-GQ4

DOI: 10.1007/s11244-018-1029-8

Abstract (EN): This work shows a promising N-doped carbon catalyst for the oxidation of oxalic acid by catalytic wet oxidation, which is able to compete with the traditional noble metal and metal oxide catalysts used in the process. After preliminary studies conducted in batch mode, the catalytic performance of the metal-free carbon nanotubes, both in powder form and supported on a macrostructured carrier (a cordierite monolith), was evaluated under continuous operating conditions. The ability of the N-functionalities to promote activation and chemisorption of oxygen led not only to fast oxalic acid mineralization under batch mode (5min of reaction to reach full mineralization), but also to good performance under continuous operation (more than 90% conversion of oxalic acid in the steady state, using the powder and around 55% using the catalyst immobilized on a honeycomb cordierite monolith).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10