CO2 methanation catalyzed by a Fe-Co/Al2O3 catalyst

Yu, Wen-Zhu; Fu, Xin-Pu; Xu, Kai; Ling, Chen; Wang, Weiwei; Jia, Chun‐Jiang

doi:10.1016/j.jece.2021.105594

Cited by 21 publications

(14 citation statements)

References 46 publications

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“…Since the industrial revolution, the overuse of fossil fuels has exacerbated environmental and energy-related problems. To reduce the adverse impact of excessive CO 2 emission, CO 2 methanation has received renewed attention in recent decades. − Chemical conversion of CO 2 to CH 4 could not only reduce CO 2 emission but also generate clean energy that can be used directly at the same time . Therefore, CO 2 methanation was considered to be one of the most promising energy storage strategies.…”

Section: Introductionmentioning

confidence: 99%

Effect of Rutile Content on the Catalytic Performance of Ru/TiO₂ Catalyst for Low-Temperature CO₂ Methanation

Zhao

Jiang

Wang

et al. 2021

ACS Sustainable Chem. Eng.

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Hydrogenation of carbon dioxide (CO2) to methane (CH4) bears the potential not only to alleviate excessive emission of CO2 but to produce clean energy for direct use. However, due to the high temperature required for the activation of CO2, it is necessary to develop a catalyst with high activity and high CH4 selectivity at low reaction temperature for CO2 methanation. In this study, we synthesized titanium dioxide (TiO2) supports with different rutile contents by calcination and investigated the relationship between the rutile content of TiO2 supports in Ru/TiO2 catalysts and their performance for low-temperature CO2 methanation. The characterization results indicated that Ru species grew preferentially on the rutile phase of the support TiO2, and the interaction between Ru species and TiO2 became stronger with increasing rutile content. In addition, the concentration of oxygen vacancies on the support, which would provide more adsorption sites for CO2, increased with the decreasing rutile content. The best reactivity was achieved with a rutile content between 15% and 30%. This work included a thorough investigation on the effect of rutile content on the performance of low-temperature CO2 methanation and provided guidance for the preparation of Ru/TiO2 catalyst with high activity.

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Section: Introductionmentioning

confidence: 99%

Effect of Rutile Content on the Catalytic Performance of Ru/TiO₂ Catalyst for Low-Temperature CO₂ Methanation

Zhao

Jiang

Wang

et al. 2021

ACS Sustainable Chem. Eng.

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“…Two satellite peaks can be observed near 788 eV and 804 eV. 36 Two peaks corresponding to Co 3+ (779.8 eV) and Co 2+ (781.3 eV) were obtained by peak fitting of Co 2p 3/2 . 37 After Cr loading, the ratio of Co 3+ to Co 2+ increases, and the modification of K 2 Cr 2 O 7 will increase the proportion of Co 3+ .…”

Section: Resultsmentioning

confidence: 98%

“…The reduction peak of Co–Fe LDO at 370 °C corresponds to the reduction of Co 3 O 4 to CoO, while the reduction peak at 560 °C may be the reduction of Co 3+ → Co 2+ → Co0 and Fe 3+ → Fe 2+ → Fe0. 34,36,38 With the loading of Cr, the reduction peak shifts to low temperature, and the reduction ability increases at low temperature. The reduction peak in the range of 250–350 °C is caused by the reduction of Cr 6+ and Co 3 O 4 , while the reduction peak in the range of 400–550 °C may be caused by the reduction of Cr 3+ , Co 3+ and Fe 3+ , and the reduction peak below 200 °C may be caused by the Cr 5+ species.…”

Section: Resultsmentioning

confidence: 99%

Catalytic activity and stability of a Cr modified Co–Fe LDO catalyst in the simultaneous catalytic reduction of NOx and oxidation of o-DCB

Xing

Zhang

et al. 2022

New J. Chem.

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“…The support of Al 2 O 3 nanobelts (NBs) was also prepared by a hydrothermal method . First of all, 3.22 g Al(NO 3 ) 3 ·9H 2 O and 4.6 g CO(NH 2 ) 2 were added to the 60 mL of distilled water.…”

Section: Experimental Methodsmentioning

confidence: 99%

Promoting Molecular Exchange on Rare-Earth Oxycarbonate Surfaces to Catalyze the Water–Gas Shift Reaction

Zhou

et al. 2023

J. Am. Chem. Soc.

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It is highly desirable to fabricate an accessible catalyst surface that can efficiently activate reactants and desorb products to promote the local surface reaction equilibrium in heterogeneous catalysis. Herein, rare-earth oxycarbonates (Ln2O2CO3, where Ln = La and Sm), which have molecular-exchangeable (H2O and CO2) surface structures according to the ordered layered arrangement of Ln2O2 2+ and CO3 2– ions, are unearthed. On this basis, a series of Ln2O2CO3-supported Cu catalysts are prepared through the deposition precipitation method, which provides excellent catalytic activity and stability for the water–gas shift (WGS) reaction. Density functional theory calculations combined with systematic experimental characterizations verify that H2O spontaneously dissociates on the surface of Ln2O2CO3 to form hydroxyl by eliminating the carbonate through the release of CO2. This interchange efficiently promotes the WGS reaction equilibrium shift on the local surface and prevents the carbonate accumulation from hindering the active sites. The discovery of the unique layered structure provides a so-called “self-cleaning” active surface for the WGS reaction and opens new perspectives about the application of rare-earth oxycarbonate nanomaterials in C1 chemistry.

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CO2 methanation catalyzed by a Fe-Co/Al2O3 catalyst

Cited by 21 publications

References 46 publications

Effect of Rutile Content on the Catalytic Performance of Ru/TiO₂ Catalyst for Low-Temperature CO₂ Methanation

Effect of Rutile Content on the Catalytic Performance of Ru/TiO₂ Catalyst for Low-Temperature CO₂ Methanation

Catalytic activity and stability of a Cr modified Co–Fe LDO catalyst in the simultaneous catalytic reduction of NOx and oxidation of o-DCB

Promoting Molecular Exchange on Rare-Earth Oxycarbonate Surfaces to Catalyze the Water–Gas Shift Reaction

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CO2 methanation catalyzed by a Fe-Co/Al2O3 catalyst

Cited by 21 publications

References 46 publications

Effect of Rutile Content on the Catalytic Performance of Ru/TiO2 Catalyst for Low-Temperature CO2 Methanation

Effect of Rutile Content on the Catalytic Performance of Ru/TiO2 Catalyst for Low-Temperature CO2 Methanation

Catalytic activity and stability of a Cr modified Co–Fe LDO catalyst in the simultaneous catalytic reduction of NOx and oxidation of o-DCB

Promoting Molecular Exchange on Rare-Earth Oxycarbonate Surfaces to Catalyze the Water–Gas Shift Reaction

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Effect of Rutile Content on the Catalytic Performance of Ru/TiO₂ Catalyst for Low-Temperature CO₂ Methanation

Effect of Rutile Content on the Catalytic Performance of Ru/TiO₂ Catalyst for Low-Temperature CO₂ Methanation