Preparation of a high performance cobalt catalyst for CO2 reforming of methane

Budiman, Anatta Wahyu; Song, Sang Hoon; Chang, Tae‐Sun; Choi, Myoung Jae

doi:10.1016/j.apt.2016.01.029

Cited by 22 publications

(6 citation statements)

References 28 publications

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“…As much as 1.5 g and 0.11 g of Ru(NO)(NO3)x(OH)y were added to the corresponding nickel precursor solution, followed by the addition of 30.14 g SiO2 (Ludox). Afterward, the solution was mixed at a temperature of 70 o C and a rotation speed of 180 rpm [6]. During the mixing process of sample NRS-SgCo, NH4OH was gradually added into the solution until a pH of 9 was attained.…”

Section: Catalyst Synthesismentioning

confidence: 99%

“…During the mixing process of sample NRS-SgCo, NH4OH was gradually added into the solution until a pH of 9 was attained. The mixing process was carried out overnight and followed by filtration [7]. The preparation of the NRS-Im sample was initiated with the preparation of catalyst solution similar to the protocols used in the preparation of NRS-SgCo.…”

Section: Catalyst Synthesismentioning

confidence: 99%

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The Effects of Different Nickel–Ruthenium on SiO2 Catalyst Synthesis Methods toward Catalytic Activity of Methane Dry Reforming

Budiman¹,

Qurrotul'aini

Latifah³

et al. 2022

equilibrium

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The presence of greenhouse gases in the atmosphere has triggered global warming and climate change. An effective approach to overcome these issues is to convert greenhouse gases into syngas. In this study, Ni-Ru/SiO2 catalyst was used to catalyze the dry reforming process of methane (CH4) and carbon dioxide (CO2) into syngas. The catalyst was prepared using different synthesis protocols: sol gel-coprecipitation and impregnation methods. Characterization using Brunauer Emmett Teller analysis showed that the catalyst prepared using both methods exhibited comparable pore diameters and high surface areas. The X-ray diffractometer analysis also indicated the presence of different NiO, RuO2, and SiO2 phases. Furthermore, the activity of the catalyst was investigated using a fixed bed reactor. Based on the results, the optimum catalytic activity was obtained from the catalyst prepared via the sol gel-coprecipitation method, with an average CH4 and CO2 conversions of 37% and 50%, respectively. In addition, our catalyst also showed a 114% higher CH4 conversion with an enhanced H2/CO ratio compared to identical catalysts from other studies.

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Section: Catalyst Synthesismentioning

confidence: 99%

Section: Catalyst Synthesismentioning

confidence: 99%

The Effects of Different Nickel–Ruthenium on SiO2 Catalyst Synthesis Methods toward Catalytic Activity of Methane Dry Reforming

Budiman¹,

Qurrotul'aini

Latifah³

et al. 2022

equilibrium

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“…Using low-cost noble metal-free catalysts, such as Fe-, ,− Co-, − and Ni-based ones, would be much more desirable. ,,− Ni-based catalysts have been widely investigated because of their low costs and relatively high activities. − It was found that the Ce 3+ /Ce 4+ and Ni 0 /Ni 2+ couples were involved in the reaction, with the occurrence of the reaction Ni 2+ + Ce 3+ → Ni 0 + Ce 4+ . The presence of Ni improved the mobility of CeO 2 lattice oxygen.…”

Section: Catalyst Developmentmentioning

confidence: 99%

Active Components of Catalysts of Methane Conversion to Synthesis Gas: Brief Perspectives

Zagaynov

2021

Energy Fuels

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Methane transformation into more valuable products has attracted extensive attention. Synthesis gas is an important intermediate product in the chemical industry. Several syngas production methods are available, depending on the purpose of the industrial application. A major limitation of the processes is the rapid deactivation of the catalyst, which has been commonly attributed to the sintering of the active sites of catalyst and carbon formations on these sites, induced by methane decomposition and CO disproportionation. The catalyst consists of an active component and support. Ceria-based systems have been extensively employed as the support because of their unique redox properties and high oxygen storage capacity. The most promising approach is to design an excellent active site of the catalyst, based on noble or transition metals. A comparison of perspective active components, especially polymetallic components, is considered here.

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“…Compared with noble metals, the Co‐based catalyst is more suitable due to its lower cost, relatively high activity, and good selectivity. However, the major remaining issues for the Co‐based catalyst are rapid deactivation originating from carbon deposition and sintering of the Co active sites under high temperatures . Therefore, promotion of Co‐based catalysts with second metals such as Pt, Rh, and Ru on various supports such as Al 2 O 3 , ZrO 2 , and TiO 2 has been investigated to improve the coking resistance and enhance the catalytic stability of Co‐based catalysts .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO₂ Reforming of CH₄ in a Fluidized‐Bed Reactor

Zhu

et al. 2018

AIChE Journal

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This work reports facile fabrication of fluidizable hierarchical Co-MgO particles with high dispersion of Co nanoparticles (NPs) and high surface oxygen vacancies for matching with the fluidized-bed reactor. The hierarchical Co-MgO catalyst exhibits higher activity and thermal stability for CH 4 -CO 2 reforming than the conventional impregnation Co/MgO catalyst. The enhanced prevention of Co NPs sintering of the hierarchical Co-MgO catalyst is attributed to the multilayer structure and the exposed MgO (111) face, which creates high surface oxygen vacancies, induces high Co dispersion to restrain Co NPs sintering, and supplies high resistance to graphite carbon deposition. A formation mechanism for the hierarchical MgO structure is also proposed. This formation of incomplete rhombohedron MgO particles with an exposed octahedral MgO (111) face is attributed to the electrostatic interaction of OH − . The proposed approach to improving catalytic activity by creation of hierarchical MgO particles can be expanded to other metal oxide catalysts. Recently, fluidization of solid-solution catalysts was proposed to enhance the catalytic performance of solid-solution catalysts for CO 2 reforming of methane. 25,26 It was found that methane and CO 2 conversions in the fluidized-bed reactor are

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Preparation of a high performance cobalt catalyst for CO2 reforming of methane

Cited by 22 publications

References 28 publications

The Effects of Different Nickel–Ruthenium on SiO2 Catalyst Synthesis Methods toward Catalytic Activity of Methane Dry Reforming

The Effects of Different Nickel–Ruthenium on SiO2 Catalyst Synthesis Methods toward Catalytic Activity of Methane Dry Reforming

Active Components of Catalysts of Methane Conversion to Synthesis Gas: Brief Perspectives

Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO₂ Reforming of CH₄ in a Fluidized‐Bed Reactor

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Preparation of a high performance cobalt catalyst for CO2 reforming of methane

Cited by 22 publications

References 28 publications

The Effects of Different Nickel–Ruthenium on SiO2 Catalyst Synthesis Methods toward Catalytic Activity of Methane Dry Reforming

The Effects of Different Nickel–Ruthenium on SiO2 Catalyst Synthesis Methods toward Catalytic Activity of Methane Dry Reforming

Active Components of Catalysts of Methane Conversion to Synthesis Gas: Brief Perspectives

Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO2 Reforming of CH4 in a Fluidized‐Bed Reactor

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Fabrication of Hierarchical Co/MgO Catalyst for Enhanced CO₂ Reforming of CH₄ in a Fluidized‐Bed Reactor