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Catalysts
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10th Anniversary of Catalysts: Environmental Catalysis—Contributions for a More...
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10th Anniversary of Catalysts: Environmental Catalysis—Contributions for a More Sustainable Society

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

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 6500

Special Issue Editors

Prof. Dr. Jean-François Lamonier

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Guest Editor
Unité de Catalyse et Chimie du Solide, Université Lille, Faculté des Sciences et Technologies, UMR CNRS 8181, 59652 Villeneuve d\'Ascq, France
Interests: heterogeneous catalysis; environmental catalysis; VOC catalytic oxidation; plasma-catalysis; transition metal oxides; material surface characterisation
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Antonella Gervasini

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Guest Editor
Dipartimento di Chimica, Università degli Studi di Milano, Via Camillo Golgi, 19, 20133 Milano, Italy
Interests: heterogeneous catalysis; environmental catalysis; acid catalysis; solid acids; adsorption; surface properties
Special Issues, Collections and Topics in MDPI journals
Dr. Sebastiano Campisi

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Guest Editor
Department of Chemistry, Università degli Studi di Milano, Milano, Italy
Interests: heterogenous catalysis; interfaces and surfaces; material characterization; circular economy; physical chemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

Environmental catalysis is a cross-disciplinary research area combining materials design, chemical engineering, and analytical investigations with the objective of improving human health and quality of life. Environmental catalysis includes not only cleaning the air, water, and soil to remove toxic and hazardous substances, but also preventing their contamination via the production of clean fuels by developing more environmentally friendly hydrogen and syngas production technologies, greenhouse gases (CO2, CH4, N2O) reduction, waste conversion into energy and materials, etc. To meet these challenges and for a more sustainable future, new catalytic materials and technologies must be developed for the coming decades. Great challenges await us, and the expectations of the whole of society are high; it is up to the entire scientific community operating in this sector to accept the challenges and work to obtain positive results for ourselves and for our environment.

Therefore, for this Special Issue we are interested in presenting the most recent progress in the development of innovative catalytic materials and new technologies for environmental protection. Fundamental studies to establish structure–reactivity/selectivity relationships of catalysts as well as studies related to the development of advanced knowledge on emerging catalytic processes (photo-catalysis, plasma-catalysis, electro-catalysis, etc.) applied to environmental protection are welcome.

It is with great pleasure and honor that we invite you to submit a review article or original research paper for possible publication in this Special Issue celebrating the 10th anniversary of our journal.

Prof. Dr. Jean-François Lamonier
Prof. Dr. Antonella Gervasini
Dr. Sebastiano Campisi
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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 2700 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.

Published Papers (3 papers)

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Research

13 pages, 3309 KiB  
Article
The Mitigation of CO Present in the Water–Gas Shift Reformate Gas over IR-TiO2 and IR-ZrO2 Catalysts
by Ziyaad Mohamed, Venkata D. B. C. Dasireddy, Sooboo Singh and Holger B. Friedrich
Catalysts 2021, 11(11), 1378; https://doi.org/10.3390/catal11111378 - 15 Nov 2021
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Abstract
CO hydrogenation and oxidation were conducted over Ir supported on TiO2 and ZrO2 catalysts using a feed mimicking the water–gas shift reformate stream. The influence of the support interaction with Ir and the catalysts’ redox and CO chemisorption properties on activity [...] Read more.
CO hydrogenation and oxidation were conducted over Ir supported on TiO2 and ZrO2 catalysts using a feed mimicking the water–gas shift reformate stream. The influence of the support interaction with Ir and the catalysts’ redox and CO chemisorption properties on activity and selectivity were evaluated. Both catalysts oxidised CO to CO2 in the absence of H2, and a conversion of 70% was obtained at 200 °C. For the CO oxidation in the presence of H2 over these catalysts, the oxidation of H2 was favoured over CO due to H2 spillover occurring at the active metal and support interface, resulting in the formation of interstitials catalysed by Ir. However, both catalysts showed promising activity for CO hydrogenation. Ir-ZrO2 was more active, giving 99.9% CO conversions from 350 to 370 °C, with high selectivity towards CH4 using minimal H2 from the feed. Furthermore, results for the Ir-ZrO2 catalyst showed that the superior activity compared to the Ir-TiO2 catalyst was mainly due to the reducibility of the support and its interaction with the active metal. Controlling the isoelectric point during the synthesis allowed for a stronger interaction between Ir and the ZrO2 support, which resulted in higher catalytic activity due to better metal dispersions, and higher CO chemisorption capacities than obtained for the Ir-TiO2 catalyst. Full article
(This article belongs to the Special Issue 10th Anniversary of Catalysts: Environmental Catalysis—Contributions for a More Sustainable Society)
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17 pages, 3506 KiB  
Article
Post-Plasma Catalysis for Trichloroethylene Abatement with Ce-Doped Birnessite Downstream DC Corona Discharge Reactor
by Grêce Abdallah, Jean-Marc Giraudon, Rim Bitar, Nathalie De Geyter, Rino Morent and Jean-François Lamonier
Catalysts 2021, 11(8), 946; https://doi.org/10.3390/catal11080946 - 05 Aug 2021
Cited by 1 | Viewed by 2075
Abstract
Trichloroethylene (TCE) removal was investigated in a post-plasma catalysis (PPC) configuration in nearly dry air (RH = 0.7%) and moist air (RH = 15%), using, for non-thermal plasma (NTP), a 10-pin-to-plate negative DC corona discharge and, for PPC, Ce0.01Mn as a [...] Read more.
Trichloroethylene (TCE) removal was investigated in a post-plasma catalysis (PPC) configuration in nearly dry air (RH = 0.7%) and moist air (RH = 15%), using, for non-thermal plasma (NTP), a 10-pin-to-plate negative DC corona discharge and, for PPC, Ce0.01Mn as a catalyst, calcined at 400 °C (Ce0.01Mn-400) or treated with nitric acid (Ce0.01Mn-AT). One of the key points was to take advantage of the ozone emitted from NTP as a potential source of active oxygen species for further oxidation, at a very low temperature (100 °C), of untreated TCE and of potential gaseous hazardous by-products from the NTP. The plasma-assisted Ce0.01Mn-AT catalyst presented the best CO2 yield in dry air, with minimization of the formation of gaseous chlorinated by-products. This result was attributed to the high level of oxygen vacancies with a higher amount of Mn3+, improved specific surface area and strong surface acidity. These features also allow the promotion of ozone decomposition efficiency. Both catalysts exhibited good stability towards chlorine. Ce0.01Mn-AT tested in moist air (RH = 15%) showed good stability as a function of time, indicating good water tolerance also. Full article
(This article belongs to the Special Issue 10th Anniversary of Catalysts: Environmental Catalysis—Contributions for a More Sustainable Society)
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18 pages, 3288 KiB  
Article
Adsorption Followed by Plasma Assisted Catalytic Conversion of Toluene into CO2 on Hopcalite in an Air Stream
by Shilpa Sonar, Jean-Marc Giraudon, Savita Kaliya Perumal Veerapandian, Jean-François Lamonier, Rino Morent, Axel Löfberg and Nathalie De Geyter
Catalysts 2021, 11(7), 845; https://doi.org/10.3390/catal11070845 - 14 Jul 2021
Cited by 4 | Viewed by 2318
Abstract
The abatement of toluene was studied in a sequential adsorption-plasma catalysis (APC) process. Within this process, Hopcalite was used as bifunctional material: as adsorbent (storage stage) and as catalyst via the oxidation of adsorbed toluene (discharge stage). It was observed that the desorption [...] Read more.
The abatement of toluene was studied in a sequential adsorption-plasma catalysis (APC) process. Within this process, Hopcalite was used as bifunctional material: as adsorbent (storage stage) and as catalyst via the oxidation of adsorbed toluene (discharge stage). It was observed that the desorption and oxidation activity of the adsorbed toluene was significantly affected the process variables. In addition, the adsorption time influenced the CO2 selectivity and CO2 yield by changing the interaction between the catalyst and the plasma generated species. At least four APC sequences were performed for each examined condition suggesting that Hopcalite is very stable under plasma exposure during all the sequences. Consequently, these results could contribute to advance the plasma–catalyst system with an optimal VOC oxidation efficiency. The catalytic activity, amount of toluene adsorbed, amount of toluene desorbed and product formation have been quantified by FT-IR. Moreover, the catalyst was characterized by XRD, H2-TPR, N2 adsorption–desorption analysis and XPS. Hopcalite shows a good CO2 selectivity and CO2 yield when the APC process is performed with an adsorption time of 20 min and a plasma treatment with a discharge power of 46 W which leads to a low energy cost of 11.6 kWh·m−3 and energy yields of toluene and CO2 of 0.18 (±0.01) g·kWh−1 and 0.48 (±0.06) g·kWh−1 respectively. Full article
(This article belongs to the Special Issue 10th Anniversary of Catalysts: Environmental Catalysis—Contributions for a More Sustainable Society)
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