Metal-Organic Frameworks and Related Porous Materials for Catalytic Applications and Related Areas

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

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 16062

Special Issue Editors


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Guest Editor
Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, Bucharest, Romania
Interests: heterogeneous catalysis; green chemistry; biomass valorization

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Guest Editor
Department of Chemical Technology, Faculty of Chemistry, Adam Mickiewicz University in Poznań, Poznań, Poland
Interests: heterogeneous catalysis; biomass valorization; adsorption processes

Special Issue Information

Dear Colleagues,

Metal-organic frameworks (MOF's), also known as porous coordination polymers (PCP''s), have gained significant interest in the last few decades as a novel category of porous and well crystalline materials, and have achieved a rapid development for diverse applications like catalysis, gas sorption/separation, chemical sensing, energy storage and conversion, etc. In addition, MOFs have been intensively employed as templates/precursors for the synthesis of diverse porous materials including porous carbons, with unique advantages in comparison to traditional porous materials, by (1) providing simple synthesis methodologies, (2) guaranteeing high flux mass-transfer and easy accessibility of active sites, (3) optimizing catalytic performance by exposure of high-density active sites and modulating the local electronic structures, and (4) favoring the establishment of structure–performance relationship.

Given the continuous advancements in this area and, as a consequence, the new challenges to be faced, a focus on this matter is highly desirable. The main aim of this Special Issue is to highlight novel developed MOF's and MOF-derived porous materials strategies designed to promote catalysis and related areas. Therefore, original research papers and reviews providing new insights into this area are welcome.

Prof. Dr. Simona M. Coman
Prof. Dr. Joanna Goscianska
Guest Editors

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Keywords

  • Metal-organic frameworks (MOFs)
  • MOF-derived porous materials
  • Catalysis
  • Photocatalysis
  • Electrocatalysis
  • Gas sorption/separation
  • Chemical sensing
  • Sequestration of pollutants
  • Energy storage and conversion
  • Biomass valorization

Published Papers (5 papers)

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Research

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19 pages, 6876 KiB  
Article
Pseudomonas stutzeri Immobilized Sawdust Biochar for Nickel Ion Removal
by Soumya Koippully Manikandan and Vaishakh Nair
Catalysts 2022, 12(12), 1495; https://doi.org/10.3390/catal12121495 - 22 Nov 2022
Cited by 10 | Viewed by 1620
Abstract
Nickel ions generated from the electroplating industry and stainless steel and battery manufacturing industries contribute to water pollution, harm human health, and pose environmental risks. A long-term, sustainable, and efficient treatment method should be developed to address this issue. Bioremediation in the presence [...] Read more.
Nickel ions generated from the electroplating industry and stainless steel and battery manufacturing industries contribute to water pollution, harm human health, and pose environmental risks. A long-term, sustainable, and efficient treatment method should be developed to address this issue. Bioremediation in the presence of biochar and microorganisms is a potential approach for metal ion abatement. This study evaluates the feasibility of Pseudomonas stutzeri immobilized sawdust biochar (PSDB) for Ni2+ removal. Sawdust biochar was prepared by pyrolyzing in a muffle furnace and was characterized using SEM, FTIR, and BET. The influence of biochar preparation parameters such as pyrolysis temperature, time on biochar yield, and impact on cell immobilization was investigated. The effect of various parameters, such as incubation time, pH, temperature, and biocatalyst dosage, was studied. The total Ni2+ in solution was analyzed using inductively coupled plasma optical emission spectrometry. PSDB showed an 83% Ni2+ removal efficiency and reusability up to three cycles. FT-IR analysis revealed that the mechanism of Ni2+ removal by PSDB was the synergistic effect of adsorption by biochar and bioaccumulation by P. stutzeri. This study presents a novel approach for environmental application by utilizing waste biomass-derived biochar as a carrier support for bacteria and an adsorbent for pollutants. Full article
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16 pages, 4095 KiB  
Article
Catalytic Combustion of Toluene over Highly Dispersed Cu-CeOx Derived from Cu-Ce-MOF by EDTA Grafting Method
by Wenjie Sun, Yijia Huang, Xiaomin Li, Zhen Huang, Hualong Xu and Wei Shen
Catalysts 2021, 11(4), 519; https://doi.org/10.3390/catal11040519 - 20 Apr 2021
Cited by 14 | Viewed by 4175
Abstract
In this work, Cu-CeOx-MOF catalysts with well-dispersed Cu in different contents were synthesized via the ethylenediaminetetraacetic acid (EDTA) grafting method. EDTA was grafted in Ce-MOF-808 to anchor Cu and then the metal-organic frameworks (MOFs) were utilized as sacrificial template to form [...] Read more.
In this work, Cu-CeOx-MOF catalysts with well-dispersed Cu in different contents were synthesized via the ethylenediaminetetraacetic acid (EDTA) grafting method. EDTA was grafted in Ce-MOF-808 to anchor Cu and then the metal-organic frameworks (MOFs) were utilized as sacrificial template to form highly performed Cu-CeOx-MOF for toluene catalytic combustion. In this series of samples, Cu-CeOx-MOF-0.2 had a higher ratio of Oα/(Oα+Oβ), more oxygen vacancies and performed better low-temperature reducibility. Cu-CeOx-MOF-0.2 showed outstanding catalytic activity and stability. The T90 (temperature when toluene conversion achieved 90%) of Cu-CeOx-MOF-0.2 was 226 °C at 60,000 mL/(gcat∙h). In situ diffuse reflectance infrared transform spectroscopy (in situ DRIFTS) results revealed that the opening of aromatic ring and the deep oxidation of carboxylate were key steps for toluene catalytic combustion over Cu-CeOx-MOF-0.2. Full article
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7 pages, 2136 KiB  
Communication
Molecular Cage Promoted Aerobic Oxidation or Photo-Induced Rearrangement of Spiroepoxy Naphthalenone
by Peiming Cheng, Lixuan Cai, Danni Yan, Lipeng Zhou and Qingfu Sun
Catalysts 2021, 11(4), 484; https://doi.org/10.3390/catal11040484 - 09 Apr 2021
Viewed by 2217
Abstract
Herein, we report a Pd4L2-type molecular cage (1) and catalyzed reactions of spiroepoxy naphthalenone (2) in water, where selective formation of 2-(hydroxymethyl)naphthalene-1,4-dione (3) via aerobic oxidation, or 1-hydroxy-2-naphthaldehyde (4) via photo-induced [...] Read more.
Herein, we report a Pd4L2-type molecular cage (1) and catalyzed reactions of spiroepoxy naphthalenone (2) in water, where selective formation of 2-(hydroxymethyl)naphthalene-1,4-dione (3) via aerobic oxidation, or 1-hydroxy-2-naphthaldehyde (4) via photo-induced rearrangement under N2 have been accomplished. Encapsulation of four molecules of guest 2 within cage 1, i.e., (2)41, has been confirmed by NMR, and a final host-guest complex of 31 has also been determined by single crystal X-Ray diffraction study. While the photo-induced ring-opening isomerization from 2 to 4 are known, appearance of charge-transfer absorption on the host-guest complex of (2)41 allows low-power blue LEDs irradiation to promote this process. Full article
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15 pages, 6772 KiB  
Article
Catalytic Performance of CPM-200-In/Mg in the Cycloaddition of CO2 and Epoxides
by Yunjang Gu, Youngson Choe and Dae-Won Park
Catalysts 2021, 11(4), 430; https://doi.org/10.3390/catal11040430 - 27 Mar 2021
Cited by 5 | Viewed by 2637
Abstract
Crystalline porous materials (CPM)-200-In and CPM-200-In/Mg metal-organic frameworks (MOFs) were synthesized by a solvothermal method and were characterized by using powder X-ray diffraction (PXRD), FT-IR, Brunauer–Emmett–Teller (BET), temperature programmed desorption (TPD), TGA, XPS, and SEM-EDS. They were used as heterogeneous catalysts for the [...] Read more.
Crystalline porous materials (CPM)-200-In and CPM-200-In/Mg metal-organic frameworks (MOFs) were synthesized by a solvothermal method and were characterized by using powder X-ray diffraction (PXRD), FT-IR, Brunauer–Emmett–Teller (BET), temperature programmed desorption (TPD), TGA, XPS, and SEM-EDS. They were used as heterogeneous catalysts for the cycloaddition of CO2 with epoxides and found to be highly efficient toward the cycloaddition reaction at moderate reaction conditions under solvent-free conditions. The catalyst was easily separated by a simple filtration and can be reused up to five consecutive times without any considerable decrease of its initial activity. CPM-200-In/Mg showed excellent catalytic performance in the cycloaddition reaction due to the synergistic role of the acidic sites and basic sites. A plausible reaction mechanism for the CPM-200-In/Mg MOF catalyzed cycloaddition reaction is proposed based on the experimental results and our previously reported DFT (Density Functional Theory) studies. Full article
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Review

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32 pages, 4887 KiB  
Review
Insight into the Photocatalytic Activity of Cobalt-Based Metal–Organic Frameworks and Their Composites
by Aleksander Ejsmont, Agata Jankowska and Joanna Goscianska
Catalysts 2022, 12(2), 110; https://doi.org/10.3390/catal12020110 - 18 Jan 2022
Cited by 13 | Viewed by 4304
Abstract
Nowadays, materials with great potential for environmental protection are being sought. Metal–organic frameworks, in particular those with cobalt species as active sites, have drawn considerable interest due to their excellent properties. This review focuses on describing cobalt-based MOFs in the context of light-triggered [...] Read more.
Nowadays, materials with great potential for environmental protection are being sought. Metal–organic frameworks, in particular those with cobalt species as active sites, have drawn considerable interest due to their excellent properties. This review focuses on describing cobalt-based MOFs in the context of light-triggered processes, including dye degradation, water oxidation and splitting, carbon dioxide reduction, in addition to the oxidation of organic compounds. With the use of Co-based MOFs (e.g., ZIF-67, Co-MOF-74) as photocatalysts in these reactions, even over 90% degradation efficiencies of various dyes (e.g., methylene blue) can be achieved. Co-based MOFs also show high TOF/TON values in water splitting processes and CO2-to-CO conversion. Additionally, the majority of alcohols may be converted to aldehydes with efficiencies exceeding 90% and high selectivity. Since Co-based MOFs are effective photocatalysts, they can be applied in the elimination of toxic contaminants that endanger the environment. Full article
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