Recent Advances in Coke Management for Dry Reforming of Methane over Ni-Based Catalysts

Xu, Zhenchao; Park, Eun Duck

doi:10.3390/catal14030176

Cited by 4 publications

(3 citation statements)

References 237 publications

(335 reference statements)

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“…However, methane conversion is a huge topic that has been widely investigated for over a century, influencing numerous books which have deep approached each specific topic. We recommend some recent review articles to delve deeper into each catalytic reaction, such as the nonoxidative conversion of methane [52][53][54][55][56][57][58], methane oxidation [4,53,[59][60][61][62], methane-to-methanol [49,53,59,[63][64][65][66], the oxidative coupling of methane [47,50,53,[67][68][69][70], methane steam reforming [25,53,60,[71][72][73][74][75], the dry reforming of methane [4,24,25,28,32,53,60,73,74,[76][77][78][79]<...…”

Section: Reaction Mechanisms and Kinetics Of Methane In Sustainable E...mentioning

confidence: 99%

“…The dry reforming of methane, as depicted in Figure 6, represents a significant pathway towards achieving sustainable development through the utilization of greenhouse gasses such as methane (CH 4 ) and carbon dioxide (CO 2 ) in chemical production, thereby mitigating environmental impact [28,77,102]. In this process, the dissociation of methane is considered the rate-determining step due to the activation of the stable C-H bond [76,105].…”

Section: Dry Reforming Of Methanementioning

confidence: 99%

“…Photocatalysts absorb photons, generating energetic carriers (electrons and holes) that can activate and convert methane molecules. This disruption of the thermodynamic equilibrium enables uphill reactions to occur at room temperature, helping to mitigate catalyst deactivation to some extent [9,11,67,77,[93][94][95]111].…”

Section: Photocatalytic Direct Partial Oxidation Of Methanementioning

confidence: 99%

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Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions

e Silva,

Rodrigues

2024

Methane

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This study investigates the utilization of controlled nanocatalysts in methane conversion reactions, addressing the pressing need for the efficient utilization of methane as a feedstock for valuable chemicals and clean energy. The methods employed include a comprehensive review of recent advancements in nanocatalyst synthesis, characterization, and application, as well as the critical analysis of underlying mechanisms and controversies in methane activation and transformation. The main findings reveal significant progress in the design and synthesis of controlled nanocatalysts, enabling enhanced activity, selectivity, and stability in methane conversion reactions. Moreover, the study highlights the importance of resolving controversies surrounding metal–support interactions for rational catalyst design. Overall, the study underscores the pivotal role of nanotechnology in shaping the future of methane utilization and sustainable energy production, providing valuable insights for guiding future research directions and technological developments in this field.

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Section: Reaction Mechanisms and Kinetics Of Methane In Sustainable E...mentioning

confidence: 99%

Section: Dry Reforming Of Methanementioning

confidence: 99%

Section: Photocatalytic Direct Partial Oxidation Of Methanementioning

confidence: 99%

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Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions

e Silva,

Rodrigues

2024

Methane

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Dry Reforming of Methane to Syngas Mediated by Rhodium–Cobalt Oxide Cluster Anions Rh₂CoO^–

Zhao,

Liu

et al. 2024

J. Phys. Chem. Lett.

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Dry reforming of methane (DRM) to syngas is an important route to co-convert CH4 and CO2. However, the highly endothermic nature of DRM induces the thermocatalysis to commonly operate at high temperatures that inevitably causes coke deposition through pyrolysis of methane. Herein, benefiting from the mass spectrometric experiments complemented with quantum chemical calculations, we have discovered that the bimetallic oxide cluster Rh2CoO– can mediate the co-conversion of CH4 and CO2 at room temperature giving rise to two free H2 molecules and two adsorbed CO molecules (COads). The only elementary step requiring the input of external energy (e.g., high temperature) is desorption of COads from the reaction intermediate Rh2CoOC2O2 –. The doping effect of Co has also been clarified that the Co could tune the charge distribution and orbital energy of the active metal Rh, enabling the enhancement of cluster reactivity toward C–H activation, which is essential to facilitating the DRM to syngas. This work not only underlines the importance of temperature control over elementary steps in practical thermocatalysis but also identifies a promising active species containing the late 3d transition metal to drive DRM to syngas. The findings could provide novel insights into design of bimetallic catalysts for co-conversion of CH4 and CO2 at low temperatures.

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Photo-Thermal Dry Reforming of Methane with PGM-Free and PGM-Based Catalysts: A Review

Varotto,

Pasqual Laverdura,

Feroci

et al. 2024

Materials

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Dry reforming of methane (DRM) is considered one of the most promising technologies for efficient greenhouse gas management thanks to the fact that through this reaction, it is possible to reduce CO2 and CH4 to obtain syngas, a mixture of H2 and CO, with a suitable ratio for the Fischer–Tropsch production of long-chain hydrocarbons. Two other main processes can yield H2 from CH4, i.e., Steam Reforming of Methane (SRM) and Partial Oxidation of Methane (POM), even though, not having CO2 as a reagent, they are considered less green. Recently, scientists’ challenge is to overcome the many drawbacks of DRM reactions, i.e., the use of precious metal-based catalysts, the high temperatures of the process, metal particle sintering and carbon deposition on the catalysts’ surfaces. To overcome these issues, one proposed solution is to implement photo-thermal dry reforming of methane in which irradiation with light is used in combination with heating to improve the efficiency of the process. In this paper, we review the work of several groups aiming to investigate the pivotal promoting role of light radiation in DRM. Focus is also placed on the catalysts’ design and the progress needed for bringing DRM to an industrial scale.

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Recent Advances in Coke Management for Dry Reforming of Methane over Ni-Based Catalysts

Cited by 4 publications

References 237 publications

Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions

Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions

Dry Reforming of Methane to Syngas Mediated by Rhodium–Cobalt Oxide Cluster Anions Rh₂CoO^–

Photo-Thermal Dry Reforming of Methane with PGM-Free and PGM-Based Catalysts: A Review

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Recent Advances in Coke Management for Dry Reforming of Methane over Ni-Based Catalysts

Cited by 4 publications

References 237 publications

Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions

Recent Advances in the Use of Controlled Nanocatalysts in Methane Conversion Reactions

Dry Reforming of Methane to Syngas Mediated by Rhodium–Cobalt Oxide Cluster Anions Rh2CoO–

Photo-Thermal Dry Reforming of Methane with PGM-Free and PGM-Based Catalysts: A Review

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Dry Reforming of Methane to Syngas Mediated by Rhodium–Cobalt Oxide Cluster Anions Rh₂CoO^–