Special Issue "Synthesis and Application of Zeolite Catalysts"

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

Deadline for manuscript submissions: 28 February 2019

Special Issue Editors

Guest Editor
Dr. Kyungsu Na

Department of Chemistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, South Korea
Website | E-Mail
Interests: heterogeneous catalysis; nanostructured materials; C1 conversion
Guest Editor
Dr. Chang Hyun Ko

School of Chemical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, South Korea
E-Mail
Interests: the heterogeneous catalysis using various nanostructured materials

Special Issue Information

Dear Colleagues,

Zeolites are central in many industrial and chemical engineering processes involving solid catalysts, which have attracted a great deal of attention from chemists, chemical engineers, and materials scientists. This family of nanoporous crystals was first discovered in 1756 and, since then, about 40 zeolites structures have been found in nature, and about 160 structures, to date, have been synthesized artificially in the lab. The regularly-arranged micropores within stable crystalline architectures afford useful functions to zeolite catalysts, such as size/shape selective catalytic ability and high thermal/hydrothermal/mechanical stabilities. In this regard, a great deal of research regarding the synthesis of zeolites, with better functions, as well as their catalytic applications, has been performed so far, and broad knowledge has been accumulated over the decades. For example, in addition to the aluminosilicate-type classical zeolites, various transition metal-incorporated zeolites have been synthesized, which is reminiscent of the heterogenized version of transition metal complexes. The tiny micropores often limit their catalytic regime to only sufficiently-small molecular species that can go through the pore aperture, but such a limited applicability has also been considerably improved by the generation of larger pores in a mesopore range.

The aforementioned research works on the development of various synthetic zeolites, having better catalytic performances, has guided current industrial society to a brighter and greener world. The aim of the present Special Issue is to report the latest research advances in the synthesis and characterization of zeolites and their catalytic applications in experimental and theoretical manners. Broad contributions, including other crystalline nanoporous materials and their catalytic applications, would also be valuable subjects to widen the scope of this Special Issue.

Dr. Kyungsu Na
Dr. Chang Hyun Ko
Guest Editors

Manuscript Submission Information

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Keywords

  • Zeolite synthesis
  • Mesoporous zeolite
  • Hierarchical zeolite
  • Heterogeneous catalyst
  • Catalytic application

Published Papers (2 papers)

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Research

Open AccessArticle A Hybrid Reactor System Comprised of Non-Thermal Plasma and Mn/Natural Zeolite for the Removal of Acetaldehyde from Food Waste
Catalysts 2018, 8(9), 389; https://doi.org/10.3390/catal8090389
Received: 3 August 2018 / Revised: 30 August 2018 / Accepted: 8 September 2018 / Published: 10 September 2018
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Abstract
The degradation of low concentrations of acetaldehyde while using a non-thermal plasma (NTP)/catalyst hybrid reactor system was investigated while using humidified air at ambient temperature. A series of highly active manganese-impregnated natural zeolite (Mn/NZ) catalysts were synthesized by the incipient wetness method using
[...] Read more.
The degradation of low concentrations of acetaldehyde while using a non-thermal plasma (NTP)/catalyst hybrid reactor system was investigated while using humidified air at ambient temperature. A series of highly active manganese-impregnated natural zeolite (Mn/NZ) catalysts were synthesized by the incipient wetness method using sonication. The Mn/NZ catalysts were analyzed by Brunauer-Emmett-Teller surface area measurements and X-ray photoelectron spectroscopy. The Mn/NZ catalyst located at the downstream of a dc corona was used for the decomposition of ozone and acetaldehyde. The decomposition efficiency of ozone and acetaldehyde was increased significantly using the Mn/NZ catalyst with NTP. Among the various types of Mn/NZ catalysts with different Mn contents, the 10 wt.% Mn/NZ catalyst under the NTP resulted the highest ozone and acetaldehyde removal efficiency, almost 100% within 5 min. Moreover, this high efficiency was maintained for 15 h. The main reason for the high catalytic activity and stability was attributed to the high dispersion of Mn on the NZ made by the appropriate impregnation method using sonication. This system is expected to be efficient to decompose a wide range of volatile organic compounds with low concentrations. Full article
(This article belongs to the Special Issue Synthesis and Application of Zeolite Catalysts)
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Open AccessArticle Catalytic Copyrolysis of Cork Oak and Waste Plastic Films over HBeta
Catalysts 2018, 8(8), 318; https://doi.org/10.3390/catal8080318
Received: 13 July 2018 / Revised: 30 July 2018 / Accepted: 1 August 2018 / Published: 3 August 2018
PDF Full-text (2026 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
The catalytic fast copyrolysis (CFCP) of cork oak (CoOak) and waste plastic films (WPFs) over HBeta(25) (SiO2/Al2O3: 25) was investigated using a thermogravimetric (TG) analyzer and a tandem micro reactor-gas chromatography/mass spectrometry (TMR-GC/MS) to determine the effectiveness
[...] Read more.
The catalytic fast copyrolysis (CFCP) of cork oak (CoOak) and waste plastic films (WPFs) over HBeta(25) (SiO2/Al2O3: 25) was investigated using a thermogravimetric (TG) analyzer and a tandem micro reactor-gas chromatography/mass spectrometry (TMR-GC/MS) to determine the effectiveness of WPFs as the hydrogen donating cofeeding feedstock on the CFCP of biomass. By applying CFCP, the maximum decomposition temperatures of CoOak (373.4 °C) and WPFs (487.9 °C) were reduced to 364.5 °C for CoOak and 436.5 °C for WPFs due to the effective interaction between the pyrolysis intermediates of CoOak and WPFs over HBeta(25), which has strong acidity and an appropriate pore size. The experimental yields of aromatic hydrocarbons on the CFCP of CoOak and WPFs were higher than their calculated yields concluded from the yields obtained from the individual catalytic fast pyrolysis (CFP) of CoOak and WPFs. The coke amount produced from the CFP of CoOak and WPFs over HBeta(25) were also decreased by applying CFCP. Full article
(This article belongs to the Special Issue Synthesis and Application of Zeolite Catalysts)
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