J
José J.M. Órfão
Researcher at University of Porto
Publications - 177
Citations - 15151
José J.M. Órfão is an academic researcher from University of Porto. The author has contributed to research in topics: Catalysis & Activated carbon. The author has an hindex of 58, co-authored 175 publications receiving 13411 citations. Previous affiliations of José J.M. Órfão include Faculdade de Engenharia da Universidade do Porto & Instituto Superior de Engenharia do Porto.
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Journal ArticleDOI
Kinetic Modeling of Nitrate Reduction Catalyzed by Pd–Cu Supported on Carbon Nanotubes
Olívia S. G. P. Soares,Xiaolei Fan,José J.M. Órfão,Alexei A. Lapkin,Manuel Fernando R. Pereira +4 more
TL;DR: In this article, the authors used 1%Pd−1%Cu/CNT for liquid phase nitrate reduction using multi-walled carbon nanotubes as a support and showed that the high selectivity is due to the enhanced mass transfer near the catalyst surface promoted by the use of a structured support.
Journal ArticleDOI
Zero-valent iron supported on nitrogen-doped carbon xerogel as catalysts for the oxidation of phenol by fenton-like system.
TL;DR: The presence of ZVI on all carbon xerogel supports improved the phenol removal efficiency and a correlation was found between the activity of Z VI catalysts in CWPO and the N-content of the supports.
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Electrocatalytic oxidation of oxalic and oxamic acids in aqueous media at carbon nanotube modified electrodes
Marta Susana Ferreira,M. F. Pinto,Olívia S. G. P. Soares,Manuel Fernando R. Pereira,José J.M. Órfão,José L. Figueiredo,Isabel C. Neves,António M. Fonseca,Pier Parpot +8 more
TL;DR: In this article, the electrochemical oxidation of oxalic and oxamic acids on multi-walled carbon nanotubes (CNT) and on monometallic (Pd and Pt) and bimetallic catalysts supported on multiwalled CNTs was investigated using cyclic voltammetry.
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Mineralization of Substituted Aromatic Compounds by Ozonation Catalyzed by Cerium Oxide and a Cerium Oxide-activated Carbon Composite
TL;DR: In this paper, a novel cerium oxide-activated carbon composite (AC0-Ce-O) was tested in the ozonation of three selected aromatic compounds: benzenesulfonic acid, sulfanilic acid and aniline.
Journal ArticleDOI
Process design for wastewater treatment: catalytic ozonation of organic pollutants.
Salim Derrouiche,D. Bourdin,Pascal Roche,B. Houssais,C. Machinal,M. Coste,João Restivo,José J.M. Órfão,Manuel Fernando R. Pereira,Yanila Marco,Enrique García-Bordejé +10 more
TL;DR: Carbon nanofibers grown on the surface of a cordierite honeycomb monolith are tested as catalyst for the ozonation of five selected micropollutants and it is shown that the inclusion of a catalyst improves the mineralization degree compared to single oz onation.