Effect of Precious Metals on NO Reduction by CO in Oxidative Conditions
| Autor: | Damien P. Debecker, Christophe Poupin, Stéphane Siffert, Pirault-Roy Laurence, François Devred, Renaud Cousin, Joudia Akil |
|---|---|
| Přispěvatelé: | UCL - SST/IMCN/MOST - Molecular Chemistry, Materials and Catalysis, Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), Université du Littoral Côte d'Opale (ULCO), Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de la matière condensée et des nanosciences / Institute of Condensed Matter and Nanosciences (IMCN), Université Catholique de Louvain = Catholic University of Louvain (UCL) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Hydrogen
chemistry.chemical_element 02 engineering and technology [CHIM.INOR]Chemical Sciences/Inorganic chemistry 010402 general chemistry Combustion Heterogeneous catalysis 01 natural sciences lcsh:Technology Catalysis Metal lcsh:Chemistry Oxidizing agent General Materials Science Temperature-programmed reduction environmental chemistry Instrumentation lcsh:QH301-705.5 Fluid Flow and Transfer Processes Chemistry lcsh:T Process Chemistry and Technology applied_chemistry General Engineering [CHIM.CATA]Chemical Sciences/Catalysis [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology oxyfuel combustion lcsh:QC1-999 0104 chemical sciences Computer Science Applications NO-CO reaction heterogeneous catalysis Chemical engineering lcsh:Biology (General) lcsh:QD1-999 Chemisorption lcsh:TA1-2040 visual_art visual_art.visual_art_medium 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) lcsh:Physics |
| Zdroj: | Applied Sciences, Vol 10, Iss 3042, p 3042 (2020) Applied Sciences, Vol. 10, no. 9, p. 3042 (2020) Applied Sciences Volume 10 Issue 9 Applied Sciences, 2020, 10 (9), pp.3042. ⟨10.3390/app10093042⟩ |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app10093042⟩ |
| Popis: | Carbon dioxide has become an environmental challenge, where the emissions have reached higher level than can be handled. In this regard, conversion of CO2 to value-added chemicals and thus recycling of CO2 appear a viable option. Prior to valorization, CO2 must be purified. Among several opportunities, oxyfuel combustion is a process in rapid development. However, the gases resulting from this process contain some traces of impurities that can hinder the recovery of CO2 such as NO and CO. This work has, therefore, focused on the study of the NO-CO reaction in an oxidizing medium, using heterogeneous catalytic materials based on various supported noble metals. These materials were extensively characterized by a variety of methods including Brunauer&ndash Emmett&ndash Teller (BET) surface area measurements, hydrogen chemisorption, transmission electron microscopy (TEM) and H2 temperature programmed reduction (H2-TPR). The results obtained show that the catalytic behavior of M/Al2O3 catalysts in CO oxidation and NO reduction with CO in oxidative conditions depends mainly on the nature of the metal. The best result for both reactions is obtained with Pt/Al2O3 catalyst. The Pt nanoparticles in their metallic form (Pt° ) as evidenced by TPR could explain the activity. |
| Databáze: | OpenAIRE |
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