Effect of support nature on the cobalt-catalyzed CO2 hydrogenation

Díez-Ramírez, J.; Sánchez, Paula; Kyriakou, V.; Zafeiratos, Spyridon; Marnellos, George; Konsolakis, Michalis; Dorado, Fernando

doi:10.1016/j.jcou.2017.08.019

Cited by 103 publications

(61 citation statements)

References 69 publications

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“…Vita et al [23] reported that no evidence for the existence of rhodium phase (elemental rhodium and/or Rh oxides) on CeO2 was observed because of low loading amount and well-dispersed Rh metal on the support. A peak at 2θ = 37° was observed on Co/mZSM5, which is a characteristic peak of crystalline Co3O4, as reported by Li et al [24] and Díez-Ramírez et al [25]. Some of the peak for Co oxides may be overlapped with the peak of mZSM5, and thus, no peak of metallic Co was observed.…”

Section: Physicochemical Properties Of Catalystssupporting

confidence: 72%

Catalytic CO Methanation over Mesoporous ZSM5 with Different Metal Promoters

Teh

Triwahyono

Jalil

et al. 2019

Bull. Chem. React. Eng. Catal.

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The carbon monoxide methanation has possessed huge potential as an effective method to produce synthetic natural gas (SNG). The basic requirements such as high catalytic activity at low temperatures (<500 °C) and high stability throughout all temperatures is needed for an ideal methanation catalysts. The ultimate goal of the study is to examine the influential of different metal promoters towards catalytic properties and catalytic CO methanation performance. A series of metal promoters (Rh, Co, Pd and Zn) mesoporous ZSM5 were synthesized using an incipient-wetness impregnation method and evaluated for catalytic CO methanation. XRD analysis showed that only metal oxides and no metallic phase of Rh, Co, Pd, and Zn were observed. The nitrogen physisorption analysis showed that mZSM5 possessed high surface area and micro-mesoporosity with intra-and interparticle pores. FE-SEM analysis illustrated that mZSM5 had typical coffin-type morphology and Rh metal dispersed on the surface of the support was confirmed by EDX analysis. Moreover, Rh (CO conversion = 95%, CH4 yield = 82%) and Co (CO conversion = 91%, CH4 yield = 71%) promoters showed significant improvement in CO methanation. On the other hand, Pd (CO conversion = 18%, CH4 yield = 12%) and Zn (CO conversion = 10%, CH4 yield = 9%) promoters had only low benefit to the CO methanation. This study affirmed that the catalytic activity of CO methanation was influenced by the variation in the type of metal loading due to different nature of metallic phases and their synergistic interaction with the supporting material.

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Section: Physicochemical Properties Of Catalystssupporting

confidence: 72%

Catalytic CO Methanation over Mesoporous ZSM5 with Different Metal Promoters

Teh

Triwahyono

Jalil

et al. 2019

Bull. Chem. React. Eng. Catal.

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“…The same conclusion was drawn in the theoretical work devoted to density‐functional theory (DFT) studies of the formate generation of zirconia‐ and alumina‐based cobalt catalysts. The effect of the oxide carrier nature on the carbon dioxide methanation activity of supported cobalt catalysts was also confirmed in the experimental work …”

Section: Resultssupporting

confidence: 54%

Carbon Dioxide Reduction with Hydrogen on Carbon‐Nanotube‐Supported Catalysts under Supercritical Conditions

et al. 2019

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“…aim to investigate the CO 2 methanation performance of cobalt‐based catalysts supported on different metal oxides (M x O y : CeO 2 , ZrO 2 , Gd 2 O 3 , ZnO) at low temperatures (200–300 °C) and under atmospheric pressure, and the results revealed a significant impact of support nature on the CO 2 hydrogenation performance. It is interesting that Co/CeO 2 exhibits almost 100 % yield to CH 4 , and Co/CeO 2 demonstrated a stable conversion/selectivity performance under subsequent reaction cycles . Vourros et al.…”

Section: Introductionmentioning

confidence: 99%

The Synergistic Effect of CuZnCeO_x in Controlling the Formation of Methanol and CO from CO₂ Hydrogenation

Qin

Guan

et al. 2018

ChemCatChem

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CO 2 hydrogenation will be essential for a sustainable society if methanol and CO can be efficiently obtained using appropriate catalysts. In this paper, a highly efficient CuZnCeO x catalyst was synthesized using a parallel flow coprecipitation method, and was evaluated in CO 2 hydrogenation to produce methanol and CO. Interestingly, the catalyst shows excellent activity and stability, and the selectivity of the products can be controlled by the amount of CeO x . Characterization results show that a significant synergistic effect between Cu and metal oxides (ZnO and/or CeO x ) was observed at the composite catalysts. Cu plays a critical role in the activation of H 2 , and CeO x strongly adsorbs CO 2 . CeO x improved the dispersion of Cu nanoparticles and promoted the spillover of atomic hydrogen, which was beneficial to the generation of methanol. Meanwhile, ZnO exhibited weak adsorption ability for CO 2 , which was beneficial for the generation of CO. In addition, ZnO can significantly improve the dispersion of the CeO x nanoparticles. Both the dispersion of active sites and the activation abilities of CO 2 are critical for catalyst activity and product selectivity. Thus, the ternary catalyst CuZnCeO x shows higher performance than the binary catalysts (CuZnO x and CuCeO x ) in the CO 2 hydrogenation reaction. This paper provides a viable way to produce selectively methanol or CO from CO 2 hydrogenation.[a] Dr.

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Effect of support nature on the cobalt-catalyzed CO2 hydrogenation

Cited by 103 publications

References 69 publications

Catalytic CO Methanation over Mesoporous ZSM5 with Different Metal Promoters

Catalytic CO Methanation over Mesoporous ZSM5 with Different Metal Promoters

Carbon Dioxide Reduction with Hydrogen on Carbon‐Nanotube‐Supported Catalysts under Supercritical Conditions

The Synergistic Effect of CuZnCeO_x in Controlling the Formation of Methanol and CO from CO₂ Hydrogenation

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Effect of support nature on the cobalt-catalyzed CO2 hydrogenation

Cited by 103 publications

References 69 publications

Catalytic CO Methanation over Mesoporous ZSM5 with Different Metal Promoters

Catalytic CO Methanation over Mesoporous ZSM5 with Different Metal Promoters

Carbon Dioxide Reduction with Hydrogen on Carbon‐Nanotube‐Supported Catalysts under Supercritical Conditions

The Synergistic Effect of CuZnCeOx in Controlling the Formation of Methanol and CO from CO2 Hydrogenation

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The Synergistic Effect of CuZnCeO_x in Controlling the Formation of Methanol and CO from CO₂ Hydrogenation