Special Issue "DeNOx Systems and VOCs (Volatile Organic Compounds) for Pollution Abatement in Catalysis"

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: 30 September 2020.

Special Issue Editors

Dr. Giuseppe Pantaleo
Website
Guest Editor
Institute of Nanostructured Materials, CNR - ISMN, via Ugo La Malfa 153, 90146 Palermo, Italy
Interests: heterogeneous catalysis; pollution abatement (deNOx and VOC); temperature-programmed charactarization; hydrogen production (dry reforming and partial oxidation of methane); PROX
Dr. Leonarda Francesca Liotta
Website
Guest Editor
Istituto per lo Studio dei Materiali Nanostrutturati(ISMN)-CNR via Ugo La Malfa, 153 90146, Palermo, Italy
Interests: Au catalysts supported on reducible oxides: synthesis, investigation of structure-activity relationship, application in CO, PROX, VOC oxidation; Noble metals (Pd, Pt, Rh) and perovskite catalysts for environmental depollution, especially for NO SCR after-treatment of exhausts gases emitted by vehicles and ships in compliance with IMO 2020 regulations; Ni-based catalysts for syngas production and CH4/CO2 activation, Dry reforming reactions; LSCF and Pd/Ni LSCF doped oxides as cathodes for SOFCs, and as photo-catalysts for pollutants abatement; Conversion of oils and fats to biodiesel over solid acid catalysts
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Special Issue Information

Dear Colleagues,

Nowadays, environmental pollution control plays a fundamental role in order to preserve human health. Many chronic respiratory diseases and premature deaths could be avoided by keeping high air quality levels, especially in places where human beings live.

In this context, many governments with new severe legislations are trying to limit the environment pollution impact.

Both volatile organic compounds (VOCs) and NOx emissions contribute to the poor quality of air in our cities. The importance of heterogeneous catalysis to abate VOC and NOx emissions is widely recognized; however, the improvement of catalysts is still demanding. The goal is to obtain more efficient catalysts to apply in VOC catalytic oxidation and in DeNOx technologies, increasing at the same time conversion and selectivity with low-energy consumption. In addition, due to the limited resources of noble metals and the cost of the current technologies adopted for DeNOx, like ammonia SCR, it is necessary to find efficient and cheap solutions. Attention will be payed to the catalytic activity and selectivity of supported noble metals, reducible oxides, and perovskite materials, and to the relationship between physico-chemical properties and catalytic performances. The effects of CO2, H2O, and SOx in the exhausts composition will be also addressed.

The idea of this Special Issue is to focus the attention of the scientific community in designing new catalysts and technologies for VOC (indoor and outdoor) and NOx abatement, indicating a clear way for a near future in which material chemistry can play an important part for a sustainable world.

Dr. Giuseppe Pantaleo
Dr. Leonarda Francesca Liotta
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • VOCs
  • NOx abatement
  • Indoor and outdoor pollution
  • Supported noble metals
  • Reducible oxides
  • Poisoning effects
  • Ageing times
  • CO2, H2O and SOx effects

Published Papers (2 papers)

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Research

Open AccessArticle
Room-Temperature Nitrophenol Reduction over Ag–CeO2 Catalysts: The Role of Catalyst Preparation Method
Catalysts 2020, 10(5), 580; https://doi.org/10.3390/catal10050580 - 21 May 2020
Abstract
Ag–CeO2 catalysts (20 mol % Ag) were synthesized using different techniques (co-precipitation, impregnation, and impregnation of pre-reduced ceria), characterized by XRD, N2 sorption, TEM, H2-TPR methods, and probed in room-temperature p-nitrophenol reduction into p-aminophenol in aqueous solution at atmospheric [...] Read more.
Ag–CeO2 catalysts (20 mol % Ag) were synthesized using different techniques (co-precipitation, impregnation, and impregnation of pre-reduced ceria), characterized by XRD, N2 sorption, TEM, H2-TPR methods, and probed in room-temperature p-nitrophenol reduction into p-aminophenol in aqueous solution at atmospheric pressure. The catalyst preparation method was found to determine the textural characteristics, the oxidation state and distribution of silver and, hence, the catalytic activity in the p-nitrophenol reduction. The impregnation technique was the most favorable for the formation over the ceria surface of highly dispersed silver species that are active in the p-nitrophenol reduction (the first-order rate constant k = 0.656 min−1). Full article
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Open AccessArticle
Propane and Naphthalene Oxidation over Gold-Promoted Cobalt Catalysts Supported on Zirconia
Catalysts 2020, 10(4), 387; https://doi.org/10.3390/catal10040387 - 02 Apr 2020
Abstract
Zirconia-supported gold-promoted cobalt catalysts were synthesized and tested for the complete oxidation of propane and naphthalene. The catalysts were characterized by BET surface area, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), powder X-ray diffraction (XRD), transmission electron microscopy (TEM), temperature-programmed reduction (TPR), [...] Read more.
Zirconia-supported gold-promoted cobalt catalysts were synthesized and tested for the complete oxidation of propane and naphthalene. The catalysts were characterized by BET surface area, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), powder X-ray diffraction (XRD), transmission electron microscopy (TEM), temperature-programmed reduction (TPR), and X-ray photoelectron spectroscopy (XPS). In both propane and naphthalene combustion reactions, the results obtained indicate that catalysts formulated with Co3O4 are more active than those containing only Au. Catalysts prepared using the deposit/precipitation (DP) method have better activity than those in which the traditional technique is used. Gold addition using the DP methods generates a promoting effect on the activity of cobalt-containing catalysts. The AuDpCoZt catalyst was found to be the most active for both propane and naphthalene combustion. The catalytic behavior of this sample is associated with a synergic effect between gold, cobalt, and the support, which is also evidenced by an increase in the reducibility of this catalytic system. The effect of the presence of NO in the feed was also analyzed for propane combustion. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Propane and Naphthalene oxidation over gold-promoted cobalt catalysts supported on Zirconia
Authors: María Silvia Leguizamón Aparicio; María Lucia Ruiz; Marco Antonio Ocsachoque; Marta Isabel Ponzi; Enrique Rodríguez-Castellón; Ileana Daniela Lick
Affiliation: Universidad Nacional de La Plata, CONICET, la Plata, Argentina

Title: Ag/ZSM-5 Hydrocarbon Traps for Cold-Strat Applications
Authors: Eleni A. Kyriakidou; Jungkuk Lee
Affiliation: Department of Chemical and Biological Engineering University at Buffalo, The State University of New York Buffalo, NY 14260-4200


Author: Piotr Cyganowski

Abstract: The article will be focused on the preparation of new heterogenous nanocomposite catalysts, containing nanoparticles of precious metals obtained using unique in-situ method. Their efficiency will be tested for catalytic decomposition of 4-nitrophenol or 4-nitroaniline as model examples of VOC.

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