Article
Chemistry, Applied
Pedro Nothaft Romano, Jose Faustino Souza de Carvalho Filho, Joao Monnerat Araujo Ribeiro de Almeida, Eduardo Falabella Sousa-Aguiar
Summary: A series of mono and bimetallic catalysts based on Ni, Rh, and Pd supported on different materials were evaluated for the dry reforming of methane reaction. Ni-based catalysts suffered from deactivation but could be regenerated, while Pd-based catalysts deactivated due to coke deposition. Rh-based catalysts showed remarkable activity and stability.
Review
Energy & Fuels
Shuowen Guo, Yinghui Sun, Yanbin Zhang, Chenghu Zhang, Ying Li, Jie Bai
Summary: This article provides an overview of dry reforming of methane (DRM) reaction and its application in catalysts, with a focus on the development and limitations of NiCo bimetallic catalysts. The correlation between component properties and catalytic performances, the effect of preparation methods, and the reaction mechanisms of the catalysts are discussed. The deactivation issues caused by carbon deposition and bimetallic sintering are highlighted, and the role of promoters in overcoming these issues is emphasized.
Article
Chemistry, Applied
Sungjoon Kweon, Young Woo Kim, Donghui Jo, Chae-Ho Shin, Min Bum Park, Hyung-Ki Min
Summary: This study systematically investigated the effect of catalyst support surface properties on the dry reforming of methane reaction, and demonstrated the influence of surface property changes on the formation of nickel silicates. The role of silanol defect sites in stabilizing metallic Ni clusters was also analyzed through theoretical calculations.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Alexandra Victoria Tavasoli, Mikaela Preston, Geoffrey Ozin
Summary: A techno-economic model is used to simulate fifteen case studies of a solar dry reforming process, aiming to explore technical challenges associated with its commercial application. The study found that the minimum catalyst activities required for most applications have been demonstrated in the scientific literature over the past two decades, but improvements in photoreactor engineering are needed for practical realization.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Physical
Dingdi Wang, Patrick Littlewood, Tobin J. Marks, Peter C. Stair, Eric Weitz
Summary: Unlike the traditional steam reforming process, the dry reforming of methane directly utilizes CO2 to produce syngas. Catalyst deactivation caused by carbon deposition has hindered the industrialization of this process. However, this study provides evidence that carbon deposits on the catalyst surface are actually an intermediate product formed during the DRM reaction and can be removed by reaction with CO2. The presence and nature of carbon deposits have important implications for optimizing DRM reaction conditions and improving yields.
Article
Chemistry, Physical
Izabela Wysocka, Aleksandra Mielewczyk-Gryn, Marcin Lapinski, Bartlomiej Cieslik, Andrzej Rogala
Summary: This study investigated the application of K-promoted Ni/MgAl2O4 catalysts with different K/Ni ratios in dry reforming of methane to improve the utilization of CO2 and CH4. The promotion of nickel catalysts with potassium was found to affect nickel distribution, metal-support interactions, and carbon deposition, leading to enhanced CO2 adsorption and reduction of the H-2:CO ratio of the catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Chemical
Lulu He, Yuanhang Ren, Bin Yue, Shik Chi Edman Tsang, Heyong He
Summary: Increasing the calcination temperature of nickel-based catalysts on alumina leads to the formation of nickel-alumina spinel, enhancing metal-support interaction and reducing temperature. It also decreases nickel nanoparticle size and increases effective dispersion due to the formation of nickel aluminate. The catalyst calcined at 750 degrees C shows the highest conversion rates in methane dry reforming and excellent stability in a 200 h test.
Article
Engineering, Environmental
Izabela Wysocka, Jakub Karczewski, Micha l Maciejewski, Barbara Koscielska, Adam Kubiak, Andrzej Rogala, Jacek Gebicki
Summary: Plastic waste is an environmental threat and finding effective ways to manage and recover it is important. Pyrolysis combined with dry reforming (PCDR) is a promising solution that can convert plastic waste into gas and liquid fuels, while utilizing CO2. This study investigates the use of carbide catalysts in PCDR and finds that they have high potential for the recovery of gaseous and liquid raw materials.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Hua-Ping Ren, Shao-Peng Tian, Si-Yi Ding, Qiang Ma, Wen-Qi Song, Yu-Zhen Zhao, Zhe Zhang, Zongcheng Miao, Wei Wang
Summary: This study investigates the difference between the physical mixing method and the conventional impregnation method for preparing Ni-supported SBA-15 catalysts. The results show that the catalyst prepared by physical mixing has smaller Ni particle size, higher Ni dispersion, and stronger Ni-support interaction, exhibiting better anti-coking and anti-sintering performance.
Article
Chemistry, Applied
Ignacio de Dios Garcia, Andrzej Stankiewicz, Hakan Nigar
Summary: The study demonstrates that microwave-assisted dry reforming of methane can achieve high and steady conversions of CH4 and CO2 up to 90% when using a mechanical mixture of Ni/Al2O3-SiC and Ni/SiC. Compared to steam reforming, the microwave-assisted dry reforming of methane over Ni/SiC is shown to be a competitive and cost-effective process candidate.
Article
Chemistry, Multidisciplinary
Chengxuan He, Shiqun Wu, Qixin Li, Mingyang Li, Jiaying Li, Lingzhi Wang, Jinlong Zhang
Summary: A Ru single-atom-modified hierarchical porous TiO2-SiO2 catalyst was reported for photocatalytic dry reforming of methane (DRM), showing remarkable activity and durability under mild conditions. The catalyst provided matched active sites for CH4 and CO2 adsorption and activation, optimizing the reaction route for inhibiting side reactions and promoting effective C-O coupling.
Article
Chemistry, Physical
Gagandeep Singh Dhillon, Guoqiang Cao, Nan Yi
Summary: In this study, nickel- and iron-modified titanium dioxide (Ni-Fe/TiO2) catalysts were investigated for the dry reforming of methane (DRM) at 550 degrees C. The addition of Fe was found to decrease the conversion of both CO2 and CH4, and XPS results showed changes in the surface nickel and iron species. Characterization techniques, including TGA and Raman spectroscopy, indicated that Fe addition greatly inhibited coke formation and in situ DRIFTS confirmed the formation of carbonate species, which aided in the removal of deposited coke.
Article
Chemistry, Physical
Zichen Du, Fuping Pan, Erik Sarnello, Xuhui Feng, Yang Gang, Tao Li, Ying Li
Summary: This study investigated the photocatalytic effects in high-temperature solar-driven photothermochemical dry reforming of methane (PTC-DRM), revealing that a photoactive Pt/CeO2 catalyst significantly enhances CO and H2 production. The research showed that photoirradiation regenerates surface oxygen vacancies, promoting CO2 activation and conversion into final products.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Energy & Fuels
D. Ballesteros-Plata, A. Infantes-Molina, E. Rodriguez-Castellon, M. A. Cauqui, M. P. Yeste
Summary: By adjusting the Pd/Nb ratio, the catalytic activity of the catalyst can be improved, with bimetallic samples showing higher activity compared to monometallic ones. The presence of Nb can reduce the amount of carbon deposited on the catalyst, increasing the stability of the catalyst.
Article
Chemistry, Multidisciplinary
Sungjoon Kweon, Hyejin An, Chae-Ho Shin, Min Bum Park, Hyung-Ki Min
Summary: N-ZSM-5 and N-beta zeolites with enhanced basic properties were prepared by substituting the framework oxygen with nitrogen using high temperature nitridation with ammonia. These basic zeolites, impregnated with Ni, showed superior DRM activity, especially at high temperature, due to enhanced basic property and dispersion of Ni active species.
JOURNAL OF CO2 UTILIZATION
(2021)
