Enhanced activity of CO2 hydrogenation to CH4 over Ni based zeolites through the optimization of the Si/Al ratio

Bacariza, M.C.; Graça, Inês; Lopes, J.M.; Henriques, Carlos

doi:10.1016/j.micromeso.2018.03.010

Cited by 62 publications

(75 citation statements)

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“…Bacariza et al . also prepared 15 wt.% Ni‐based USY zeolites and studied the effect of the zeolite composition in terms of compensating cation and Si/Al ratio . They verified that larger monovalent cations slightly enhanced the reducibility of NiO species in the calcined samples, while Ni 0 average particle sizes in the reduced catalysts were not significantly affected by the cation nature .…”

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Thermal Csupporting

confidence: 78%

“…Another possible effect, not analysed by the authors, could arise from the difference in the Si/Al of the samples chosen for this study. Indeed, according the literature, higher Si/Al ratios are responsible for a reduction in the inhibitory role of water in the CO 2 methanation reaction. Consequently, the better results found for the BEA samples could be also related to the higher Si/Al ratio of the parent zeolite used (∼12, while the Y samples presented ratios of ∼2.6).…”

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Thermal Cmentioning

confidence: 76%

“…Regarding the effect of the Si/Al ratio, Bacariza et al . also verified that, whatever the compensating cation, the catalytic performances were importantly favoured by increasing the Si/Al ratio of USY zeolites (Figure ).…”

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Thermal Cmentioning

confidence: 99%

“…also verified that, whatever the compensating cation, the catalytic performances were importantly favoured by increasing the Si/Al ratio of USY zeolites (Figure ). Indeed, higher ratios led to more hydrophobic samples, whereas zeolites basicity was considerably higher for lower Si/Al ratios . As a result, samples’ hydrophobicity was found as the key parameter explaining the performance enhancements, since H 2 O plays an inhibitory role in the reaction.…”

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Thermal Cmentioning

confidence: 99%

“…Additionally, they observed a remarkable effect derived from cerium incorporation, being the performances again better than the ones obtained for a commercial catalyst. These effects had already been reported under thermal assisted methanation by the same authors, but they are even more remarkable under DBD plasma conditions …”

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Plasma Comentioning

confidence: 99%

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Tuning Zeolite Properties towards CO₂ Methanation: An Overview

et al. 2019

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This work provides a short review of the literature concerning the utilization of zeolites as supports for CO2 methanation catalysts. Indeed, the application of these materials in carbon dioxide hydrogenation into methane has led to considerably relevant performances according to the literature, being zeolite‐based catalysts more active and selective than commercial materials reported. Considering the well‐known zeolite features and the possibility to finely modulate its properties, inducing relevant changes on the adsorbed metal species and in the CO2 activation ability of the catalyst, potentially interesting catalytic properties can be generated also towards this transformation. Possible correlations between the characteristics of these materials, found as relevant for CO2 methanation, and the catalytic properties will be then presented and discussed.

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Section: Co2 Methanation Over Zeolite‐based Catalysts Under Thermal Csupporting

confidence: 78%

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Thermal Cmentioning

confidence: 76%

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Thermal Cmentioning

confidence: 99%

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Thermal Cmentioning

confidence: 99%

Section: Co2 Methanation Over Zeolite‐based Catalysts Under Plasma Comentioning

confidence: 99%

See 3 more Smart Citations

Tuning Zeolite Properties towards CO₂ Methanation: An Overview

et al. 2019

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Sustainable Technologies inCO₂Utilization

Bacariza,

Lopes,

Henriques

2024

Catalysis for a Sustainable Environment

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Applications of Zeolites to C1 Chemistry: Recent Advances, Challenges, and Opportunities

2020

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However, due to growing concerns regarding crude oil depletion and increasing environmental requirements, finding abundant fossil hydrocarbons with high H 2 /C ratios as well as alternative carbon resources has become crucial to maintaining sustainable, environmentally benign systems that can aid human development. [2] Thus, one-carbon (C1) chemistry, which is the chemistry of C1 molecules that can be derived from sources other than fossil hydrocarbons, including carbon monoxide (CO), carbon dioxide (CO 2), methane (CH 4), methanol (CH 3 OH), and formic acid (HCOOH), has emerged and plays important roles in the energy supply and high-value chemical preparation. [1,3] These C1 resources can be obtained from natural gas, shale gas, coal, biomass, solid wastes, and CO 2 emissions. [3a,4] Extensive studies have been dedicated to the catalytic conversion of C1 molecules, including production of dimethyl ether (DME) and liquid fuels from syngas (a mixture of CO and H 2); production of methanol, light olefins, and even aromatics from CH 4 ; and production of hydrogen from HCOOH. [5] All of these transformations require metallic catalytic species such as single atoms; clusters; or oxides, carbides, or alloy particles (e.g., Rh-, AuPd-, Fe 3 O 4-, and Fe 5 C 2-based catalysts). However, these isolated metallic species suffer from severe sintering due to a lack of confinement effects from supports, which leads to poor catalytic stability and decreased selectivities toward their target products. The efficient production of a specific range of hydrocarbons or oxygenates remains a difficult scientific and technical challenge. Overcoming product selectivity limitations and improving catalyst stabilities via catalyst designs are important areas of research. Zeolites are an important class of shape-selective catalysts with uniform micropores, tunable acidities, and high thermal and hydrothermal stabilities. Over the past decade, they have gained broad popularity and been applied to various industrially important catalytic processes. [6] In particular, the design and development of zeolite-based mono-, bi-, and multifunctional catalysts that combine the advantages of zeolites with those of metallic catalytic species have boosted the application of zeolites to C1 chemistry. As shown in Figure 1, value-added hydrocarbons and oxygenates can be produced from C1 molecules via various catalytic routes over zeolite-based catalysts. By May of 2020, the Structure Commission of the International C1 chemistry, which is the catalytic transformation of C1 molecules including CO, CO 2 , CH 4 , CH 3 OH, and HCOOH, plays an important role in providing energy and chemical supplies while meeting environmental requirements. Zeolites are highly efficient solid catalysts used in the chemical industry. The design and development of zeolite-based mono-, bi-, and multifunctional catalysts has led to a booming application of zeolite-based catalysts to C1 chemistry. Combining the advantages of zeolites and metallic catalytic species has promoted the catal...

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Enhanced activity of CO2 hydrogenation to CH4 over Ni based zeolites through the optimization of the Si/Al ratio

Cited by 62 publications

References 55 publications

Tuning Zeolite Properties towards CO₂ Methanation: An Overview

Tuning Zeolite Properties towards CO₂ Methanation: An Overview

Sustainable Technologies inCO₂Utilization

Applications of Zeolites to C1 Chemistry: Recent Advances, Challenges, and Opportunities

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Enhanced activity of CO2 hydrogenation to CH4 over Ni based zeolites through the optimization of the Si/Al ratio

Cited by 62 publications

References 55 publications

Tuning Zeolite Properties towards CO2 Methanation: An Overview

Tuning Zeolite Properties towards CO2 Methanation: An Overview

Sustainable Technologies inCO2Utilization

Applications of Zeolites to C1 Chemistry: Recent Advances, Challenges, and Opportunities

Contact Info

Product

Resources

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Tuning Zeolite Properties towards CO₂ Methanation: An Overview

Tuning Zeolite Properties towards CO₂ Methanation: An Overview

Sustainable Technologies inCO₂Utilization