Nanocatalysts for Carbon Upcycling

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 5970

Special Issue Editors


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Guest Editor
Department of Environmental and Energy Engineering, Yonsei University, 1 Yonseidae-gil, Wonju, Gangwon 26493, Republic of Korea
Interests: catalysts; waste-to-energy; hydrogen; water–gas shift; methane reforming
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Guest Editor
School of Chemical Engineering, Chonnam National University, Gwangju 61186, Korea
Interests: hydrogen production; reforming of methane; oxidative dehydrogenation of ethane; battery; electric double-layer capacitors
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Eco-firendly Energy & Catalyst Laboratory (ECOCAT LAB), Department of Chemical Engineering, Keimyung University, Daegu 42601, Korea
Interests: hydrogen production; water gas shift; reforming of methane; synthesis of nanoporous materials; waste to energy

Special Issue Information

Dear Colleagues,

The Paris Agreement was adopted by 195 countries under the United Nations Framework Convention on Climate Change (UNFCCC) in order to cope with climate change. The aim of the Paris Agreement was to restrict the rise of the global average temperature well below 2 °C above pre-industrial levels and to pursue efforts to limit the temperature increase even further to 1.5 °C by 2100. This international agreement for reducing greenhouse gas (GHG) emissions implies drastic alterations of the energy sector. To accomplish this ambitious goal, efficient, sustainable, and integrated approaches are emerging as the energy sector is on the verge of transformation, driven by technological progress such as electrification, decarbonization, sustainable energy resources, and CO2 capture and storage (CCS) and utilization (CCU).

This Special Issue collects original research papers, reviews, and commentaries focused on the upcycling of carbon. Submissions are welcome in the following areas: synthesis, characterization, application of new catalysts for CCU technology; studies of the activity and stability of the developed catalysts evaluated by conversion rate or turnover frequency; and the identification of intermediates in the catalytic cycle or mechanisms of the catalytic reaction.

Prof. Dr. Hyun-Seog Roh
Prof. Dr. Chang Hyun Ko
Dr. Yeol Lim Lee
Guest Editors

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Keywords

  • catalysts
  • C1 chemistry
  • carbonate synthesis
  • carbon capture and utilization

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Published Papers (2 papers)

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Research

16 pages, 2195 KiB  
Article
Sulfur-Resistant CeO2-Supported Pt Catalyst for Waste-to-Hydrogen: Effect of Catalyst Synthesis Method
by Ga-Ram Hong, Kyoung-Jin Kim, Seon-Yong Ahn, Beom-Jun Kim, Ho-Ryong Park, Yeol-Lim Lee, Sang Soo Lee, Yukwon Jeon and Hyun-Seog Roh
Catalysts 2022, 12(12), 1670; https://doi.org/10.3390/catal12121670 - 19 Dec 2022
Cited by 5 | Viewed by 2181
Abstract
To improve the sulfur tolerance of CeO2-supported Pt catalysts for water gas shift (WGS) using waste-derived synthesis gas, we investigated the effect of synthesis methods on the physicochemical properties of the catalysts. The Pt catalysts using CeO2 as a support [...] Read more.
To improve the sulfur tolerance of CeO2-supported Pt catalysts for water gas shift (WGS) using waste-derived synthesis gas, we investigated the effect of synthesis methods on the physicochemical properties of the catalysts. The Pt catalysts using CeO2 as a support were synthesized in various pathways (i.e., incipient wetness impregnation, sol-gel, hydrothermal, and co-precipitation methods). The prepared samples were then evaluated in the WGS reaction with 500 ppm H2S. Among the prepared catalysts, the Pt-based catalyst prepared by incipient wetness impregnation showed the highest catalytic activity and sulfur tolerance due to the standout factors such as a high oxygen-storage capacity and active metal dispersion. The active metal dispersion and oxygen-storage capacity of the catalyst showed a correlation with the catalytic performance and the sulfur tolerance. Full article
(This article belongs to the Special Issue Nanocatalysts for Carbon Upcycling)
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13 pages, 2085 KiB  
Article
CO2 Reforming of CH4 Using Coke Oven Gas over Ni/MgO-Al2O3 Catalysts: Effect of the MgO:Al2O3 Ratio
by Ho-Ryong Park, Beom-Jun Kim, Yeol-Lim Lee, Seon-Yong Ahn, Kyoung-Jin Kim, Ga-Ram Hong, Seong-Jin Yun, Byong-Hun Jeon, Jong Wook Bae and Hyun-Seog Roh
Catalysts 2021, 11(12), 1468; https://doi.org/10.3390/catal11121468 - 30 Nov 2021
Cited by 15 | Viewed by 2954
Abstract
Research is being actively conducted to improve the carbon deposition and sintering resistance of Ni-based catalysts. Among them, the Al2O3-supported Ni catalyst has been broadly studied for the dry reforming reaction due to its high CH4 activity at [...] Read more.
Research is being actively conducted to improve the carbon deposition and sintering resistance of Ni-based catalysts. Among them, the Al2O3-supported Ni catalyst has been broadly studied for the dry reforming reaction due to its high CH4 activity at the beginning of the reaction. However, there is a problem of deactivation due to carbon deposition of Ni/Al2O3 catalyst and sintering of Ni, which is a catalytically active material. Supplementing MgO in Ni/Al2O3 catalyst can result in an improved MgAl2O4 spinel structure and basicity, which can be helpful for the activation of methane and carbon dioxide molecules. In order to confirm the optimal supports’ ratio in Ni/MgO-Al2O3 catalysts, the catalysts were prepared by supporting Ni after controlling the MgO:Al2O3 ratio stepwise, and the prepared catalysts were used for CO2 reforming of CH4 (CDR) using coke oven gas (COG). The catalytic reaction was conducted at 800 °C and at a high gas hourly space velocity (GHSV = 1,500,000 h−1) to screen the catalytic performance. The Ni/MgO-Al2O3 (MgO:Al2O3 = 3:7) catalyst showed the best catalytic performance between prepared catalysts. From this study, the ratio of MgO:Al2O3 was confirmed to affect not only the basicity of the catalyst but also the dispersion of the catalyst and the reducing property of the catalyst surface. Full article
(This article belongs to the Special Issue Nanocatalysts for Carbon Upcycling)
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