CO2 valorisation via Reverse Water-Gas Shift reaction using advanced Cs doped Fe-Cu/Al2O3 catalysts

Pastor‐Pérez, Laura; Baibars, F.; Saché, Estelle le; Arellano‐García, Harvey; Gu, Sai; Reina, Tomás Ramírez

doi:10.1016/j.jcou.2017.08.009

Cited by 173 publications

(115 citation statements)

References 30 publications

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“…To have a better comparison, the same study was carried out with Ni/CeAl. The error in CO 2 conversion and CO/CH 4 selectivities for all the experiments is within ± 0.5%, as in previous works using this reaction set-up [28]. The parameters used for measuring the catalytic activity of each sample in this work were CO 2 conversion (Eq.…”

Section: Catalytic Behavioursupporting

confidence: 55%

“…The presence of Ni favours the catalytic behaviour at lower temperatures compared to other metals [28], but not always in favour of the desired reaction. The activity enhancement at low temperatures would greatly favour heat integration with a potential Fischer-Tropsch unit if it is accompanied with a good CO selectivity [28].…”

Section: Xps Characterization Of Reduced Catalystsmentioning

confidence: 97%

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Highly efficient Ni/CeO2-Al2O3 catalysts for CO2 upgrading via reverse water-gas shift: Effect of selected transition metal promoters

Yang

Pastor‐Pérez

et al. 2018

Applied Catalysis B: Environmental

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In the context of Carbon Capture and Utilisation (CCU), the catalytic reduction of CO 2 to CO via reverse watergas shift (RWGS) reaction is a desirable route for CO 2 valorisation. Herein, we have developed highly effective Ni-based catalysts for this reaction. Our study reveals that CeO 2 -Al 2 O 3 is an excellent support for this process helping to achieve high degrees of CO 2 conversions. Interestingly, FeO x and CrO x , which are well-known active components for the forward shift reaction, have opposite effects when used as promoters in the RWGS reaction. The use of iron remarkably boosts the activity, selectivity and stability of the Ni-based catalysts, while adding chromium results detrimental to the overall catalytic performance. In fact, the iron-doped material was tested under extreme conditions (in terms of space velocity) displaying fairly good activity/stability results. This indicates that this sort of catalysts could be potentially used to design compact RWGS reactors for flexible CO 2 utilisation units.

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Section: Catalytic Behavioursupporting

confidence: 55%

Section: Xps Characterization Of Reduced Catalystsmentioning

confidence: 97%

Highly efficient Ni/CeO2-Al2O3 catalysts for CO2 upgrading via reverse water-gas shift: Effect of selected transition metal promoters

Yang

Pastor‐Pérez

et al. 2018

Applied Catalysis B: Environmental

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151

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“…[38] Catalysts that are active in the WGS reaction are also active in the RWGS reaction according to the principle of microscopic reversibility. [27] Cu has been shown to perform RWGS at low temperatures, [75,76] and little or no methane is formed as a side product. But without hydrogen, CO 2 dissociation is highly unfavorable on clean Cu surfaces, which directly translates to the need for high H 2 /CO 2 feed ratios to achieve high CO 2 conversions.…”

Section: Rwgs Catalysts and Challengesmentioning

confidence: 99%

Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals

et al. 2020

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Density functional theory (DFT) of the CO2 behavior on the catalyst surface provides valuable insights about the C=O bond activation, information about adsorption and dissociation of CO2, understanding the elementary steps involved in the mechanism of the CO2 hydrogenation reaction. Nowadays, DFT computational studies for the catalytic hydrogenation of CO2 are becoming very popular. Therefore, this article is focused on a comprehensive review of the DFT studies in thermocatalytic hydrogenation of CO2 at the gas‐surface interface and discusses three aspects: 1) processes taking place on the surfaces and facets of transition metal heterogeneous catalysts, 2) adsorption of CO2 on surfaces of different transition metals; 3) current understanding of reaction mechanisms taking place on the catalytic surface for the production of different compounds. A detailed schematic overview of the possible CO2 hydrogenation mechanisms and DFT simulations presented here will enhance the current understanding of the CO2 catalytic hydrogenation.

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“…It should be noted that there are many, still-developing methods involving heterogeneous catalysis for "green" hydrogen production, e.g. steam methane reforming, the water-gas shift reaction and other [166][167][168][169][170][171][172][173][174][175][176][177].…”

Section: Photoelectrochemical Production Of Hydrogenmentioning

confidence: 99%

Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

Wacławek

Padil

Černík

2018

Ecological Chemistry and Engineering S

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Heterogeneous catalysis is one of the fastest developing branches of chemistry. Moreover, it is strongly connected to popular environment-related applications. Owing to the very fast changes in this field, for example, numerous discoveries in nanoscience and nanotechnologies, it is believed that an update of the literature on heterogeneous catalysis could be beneficial. This review not only covers the new developments of heterogeneous catalysis in environmental sciences but also touches its historical aspects. A short introduction to the mechanism of heterogeneous catalysis with a small section on advances in this field has also been elaborated. In the first part, recent innovations in the field of catalytic air, water, wastewater and soil treatment are presented, whereas in the second part, innovations in the use of heterogeneous catalysis for obtaining sustainable energy and chemicals are discussed. Catalytic processes are ubiquitous in all branches of chemistry and there are still many unsolved issues concerning them.

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CO2 valorisation via Reverse Water-Gas Shift reaction using advanced Cs doped Fe-Cu/Al2O3 catalysts

Cited by 173 publications

References 30 publications

Highly efficient Ni/CeO2-Al2O3 catalysts for CO2 upgrading via reverse water-gas shift: Effect of selected transition metal promoters

Highly efficient Ni/CeO2-Al2O3 catalysts for CO2 upgrading via reverse water-gas shift: Effect of selected transition metal promoters

Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals

Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

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CO2 valorisation via Reverse Water-Gas Shift reaction using advanced Cs doped Fe-Cu/Al2O3 catalysts

Cited by 173 publications

References 30 publications

Highly efficient Ni/CeO2-Al2O3 catalysts for CO2 upgrading via reverse water-gas shift: Effect of selected transition metal promoters

Highly efficient Ni/CeO2-Al2O3 catalysts for CO2 upgrading via reverse water-gas shift: Effect of selected transition metal promoters

Recent Developments in the Modelling of Heterogeneous Catalysts for CO2 Conversion to Chemicals

Major Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review

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Product

Resources

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Recent Developments in the Modelling of Heterogeneous Catalysts for CO₂ Conversion to Chemicals