Investigation of Cu promotion effect on hydrotalcite-based nickel catalyst for CO2 methanation

Summa, Paulina; Samojeden, Bogdan; Motak, Monika; Wierzbicki, Dominik; Alxneit, Ivo; Świerczek, Konrad; Costa, Patrick Da

doi:10.1016/j.cattod.2021.05.004

Cited by 41 publications

(24 citation statements)

References 85 publications

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“…This is in good agreement with the study of Le et al, which confirmed that the main product of the reaction is carbon monoxide, formed mainly in the RWGS reaction [33]. A similar effect was observed for other types of promoters such as copper, especially promoted on hydrotalcite-derived catalysts [18].…”

Section: Resultssupporting

confidence: 92%

“…Summa et al studied promotion of Cu under the same conditions of CO 2 methanation (300 • C and GHSV of 12,000 h −1 ). In this study the best performing Cu-promoted catalyst (20 wt% Ni and 1 wt% Cu) revealed TOF of 5.91 × 10 −2 s −1 [18]. Another example can be La-promoted hydrotalcite-based catalyst containing 40 wt% of nickel and 2 wt% of lanthanum.…”

Section: Stability Tests At 300 • Cmentioning

confidence: 57%

“…H1 subtype suggests the presence of cylindrical-like pore channels or agglomerates of approximately uniform spheres [37]. Hydrotalcite-derived mixed oxides usually present such a type of surface structure, which is compared in Table 2 [18]. The specific surface area is 179 and 207 m 2 /g for the samples with 1 and 4 wt% of vanadium, respectively.…”

Section: Low-temperature N 2 Sorption On Studied Catalystsmentioning

confidence: 99%

“…During methanation reaction, CO 2 forms monodentate carbonates on basic lowcoordination oxygen anions that are present at the surface, especially in MgO [18]. The temperature of CO 2 desorption from the strong sites is decreased for V-containing materials, which suggests a weakened interaction of unidenate ions in comparison to the unpromoted material, or lower availability of MgO on the surface.…”

Section: Evolution the Crystalline Structure Of The Catalystsmentioning

confidence: 99%

“…This promotion can prevent the sintering of nickel, improve the dispersion, and can modify the surface properties leading to higher activity in CO 2 methanation. The most commonly used promotors are copper [18], yttrium [19], or manganese [20]. Additionally, lathanum was found to work as a structural promoter, by limiting the number of side reactions [21,22].…”

Section: Introductionmentioning

confidence: 99%

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Co-Precipitated Ni-Mg-Al Hydrotalcite-Derived Catalyst Promoted with Vanadium for CO2 Methanation

et al. 2021

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Co-precipitated Ni-Mg-Al hydrotalcite-derived catalyst promoted with vanadium were synthesized with different V loadings (0–4 wt%) and studied in CO2 methanation. The promotion with V significantly changes textural properties (specific surface area and mesoporosity) and improves the dispersion of nickel. Moreover, the vanadium promotion strongly influences the surface basicity by increasing the total number of basic sites. An optimal loading of 2 wt% leads to the highest activity in CO2 methanation, which is directly correlated with specific surface area, as well as the basic properties of the studied catalysts.

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Section: Resultssupporting

confidence: 92%

Section: Stability Tests At 300 • Cmentioning

confidence: 57%

Section: Low-temperature N 2 Sorption On Studied Catalystsmentioning

confidence: 99%

Section: Evolution the Crystalline Structure Of The Catalystsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Co-Precipitated Ni-Mg-Al Hydrotalcite-Derived Catalyst Promoted with Vanadium for CO2 Methanation

et al. 2021

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Active Sites for CO₂ Hydrogenation to Methanol: Mechanistic Insights and Reaction Control

Zada,

Yu,

Sun

2024

ChemSusChem

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Catalytic CO2 conversion to methanol is a promising way to extenuate the adverse effects of CO2 emission, global warming and energy shortage. Understanding the fundamental features of CO2 activation and hydrogenation at the molecular level is essential for carbon utilization and sustainable chemical production in the current climate crisis. This review explores the recent advances in understanding the design of catalysts with desired active sites, including single‐atom, dual‐atom, interface, defects/vacancies and promoters/dopants. We focused on the design of various catalytic systems to enhance their catalytic performances by stabilizing active metal in a catalyst, identifying the unique structure of active species, and engineering coordination environments of active sites. Mechanistic insights provided by advanced operando and in situ spectroscopies were also discussed. Moreover, the review highlights the key factors affecting active sites and reaction mechanisms, such as local environments, oxidation states, and metal‐support interactions. By integrating recent advancements and relating knowledge gaps this review aims to endow an inclusive overview of the field and guide future research toward more efficient and selective catalysts for CO2 hydrogenation to methanol.

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Improved Dual Function Materials for CO₂ Capture and In Situ Methanation

Marin,

Parra,

Rios

2023

Energy Tech

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Dual‐function materials (DFM) carry out both the CO2 purification and the reaction with H2, to produce CH4, over the same material and in the same equipment. While noble metals like Ru and Rh have traditionally been the focus of DFM research due to their catalytic activity at low temperatures, they are expensive. Therefore, there is strong interest in discovering more cost‐effective yet highly active catalysts. Herein, improved DFMs are developed by directly reducing Ni‐containing hydrotalcites, without prior air calcination, at moderate temperature. This method results in a high dispersion of Ni as well as in high amounts of small and reduced Ni crystallites with low interaction with the support, which are crucial for the improved behavior observed. The most remarkable and novel result is that these materials show superior CH4 productivity than previously reported DFMs. Under the five operation cycles evaluated, these DFMs exhibit a substantial increase in CO2 capture (1.76 mol kg−1 DFM) and CH4 productivity (0.98 mol kg−1 DFM), in the absence of O2 and water. In the presence of 4.5% O2, both CO2 adsorption and CH4 productivity decrease but they still outperform previous DFMs.

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Investigation of Cu promotion effect on hydrotalcite-based nickel catalyst for CO2 methanation

Cited by 41 publications

References 85 publications

Co-Precipitated Ni-Mg-Al Hydrotalcite-Derived Catalyst Promoted with Vanadium for CO2 Methanation

Co-Precipitated Ni-Mg-Al Hydrotalcite-Derived Catalyst Promoted with Vanadium for CO2 Methanation

Active Sites for CO₂ Hydrogenation to Methanol: Mechanistic Insights and Reaction Control

Improved Dual Function Materials for CO₂ Capture and In Situ Methanation

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Investigation of Cu promotion effect on hydrotalcite-based nickel catalyst for CO2 methanation

Cited by 41 publications

References 85 publications

Co-Precipitated Ni-Mg-Al Hydrotalcite-Derived Catalyst Promoted with Vanadium for CO2 Methanation

Co-Precipitated Ni-Mg-Al Hydrotalcite-Derived Catalyst Promoted with Vanadium for CO2 Methanation

Active Sites for CO2 Hydrogenation to Methanol: Mechanistic Insights and Reaction Control

Improved Dual Function Materials for CO2 Capture and In Situ Methanation

Contact Info

Product

Resources

About

Active Sites for CO₂ Hydrogenation to Methanol: Mechanistic Insights and Reaction Control

Improved Dual Function Materials for CO₂ Capture and In Situ Methanation