Coprecipitated iron-containing catalysts (Fe-Al2O3, Fe-Co-Al2O3, Fe-Ni-Al2O3) for methane decomposition at moderate temperatures

Reshetenko, Tatyana V.; Avdeeva, L.B.; Ушаков, В. А.; Мороз, Э. М.; Shmakov, A. N.; Kriventsov, V. V.; Kochubey, D.I.; Pavlyukhin, Yu. T.; Chuvilin, Andrey; Ismagilov, Z. R.

doi:10.1016/j.apcata.2004.04.026

Cited by 92 publications

(63 citation statements)

References 45 publications

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“…Reshetenko et al [15] studied the catalytic methane decomposition in a fluidized bed reactor using Fe/Al 2 O 3 , Fe-Co/Al 2 O 3 , and Fe-Ni/Al 2 O 3 at the temperature range of 600-650˝C. The results indicated the positive effect on catalyst carbon capacity by adding Co to Fe.…”

Section: Introductionmentioning

confidence: 97%

Effect of Ce and Co Addition to Fe/Al2O3 for Catalytic Methane Decomposition

et al. 2016

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Abstract:Catalytic methane decomposition is studied in a fixed bed reactor. Two sets of bimetallic catalysts are employed, namely: 30%Fe-X%Ce/Al 2 O 3 and 30%Fe-X%Co/Al 2 O 3 , and compared with monometallic 30%Fe/Al 2 O 3 catalyst. The effect of promoting Fe with Ce and Co and reduction temperature are investigated. The results reveal that Ce addition has shown a negative impact on H 2 yield while a positive effect on H 2 yield and catalyst stability are observed with Co addition. In terms of number of moles of produced hydrogen per active sites, Fe/Al 2 O 3 has shown a higher number of moles of hydrogen compared to bimetallic catalysts. The catalyst reduced at 500˝C exhibits better activity as compared to the catalyst reduced at 950˝C. Carbon nano-tubes are deposited on the catalyst within the range of 14-73 nm diameter. Two types of carbon nanotubes are detected: Cα and Cγ.

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Section: Introductionmentioning

confidence: 97%

Effect of Ce and Co Addition to Fe/Al2O3 for Catalytic Methane Decomposition

et al. 2016

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“…CDM is an endothermic reaction that produces in one single step free-CO 2 hydrogen and carbon nanostructures with various textural and structural properties [5]. Co-and Ni-based catalysts are widely used in CDM due to their high activity and the formation of filamentous carbon [6][7][8][9][10][11]. However, Ni and Co-based catalysts suffered from rapid deactivation when used at temperatures higher than ca.…”

Section: Introductionmentioning

confidence: 99%

“…Bimetallic Fe-based catalysts such as Fe-Co [8,[21][22][23] or Fe-Mo [24][25][26][27][28][29][30][31][32][33][34] resulted in higher CNTs yield compared to undoped catalysts, besides preventing catalyst particle aggregation [35]. It is known that an increase in Mo content in bimetallic catalysts led to narrower nanotubes, i.e.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen and multiwall carbon nanotubes production by catalytic decomposition of methane: Thermogravimetric analysis and scaling-up of Fe–Mo catalysts

Torres

Pinilla

Lázaro

et al. 2014

International Journal of Hydrogen Energy

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“…As reported by Jin et al [28], there may be an induced period required before Fe particles develop to their full capacities, Journal of Nanomaterials and this result was also found in Ni-doped carbon catalysts [29]. From Figure 7, the methane conversion curves for different Fe content catalysts (10Fe/MRM, 20Fe/MRM, 30Fe/ MRM, and 40Fe/MRM) show similar three-step (increasedecrease-increase) variations with the reaction time, and the variation tendency of methane conversion curves was different in contrast with conventional iron-based catalysts [14,49]. The first step was ascribed to the induction period that was mentioned above.…”

Section: Catalytic Methane Decompositionmentioning

confidence: 57%

Preparation of Modified Red Mud-Supported Fe Catalysts for Hydrogen Production by Catalytic Methane Decomposition

Liu

Fang

et al. 2017

Journal of Nanomaterials

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A modified red mud-(MRM-) supported Fe catalyst ( Fe/MRM) was prepared using the homogeneous precipitation method and applied to methane decomposition to produce hydrogen. The TEM and SEM-EDX results suggested that the particle sizes of the Fe/MRM catalysts were much smaller than that of raw red mud (RM), and the active metal Fe was evenly distributed over the catalyst structure. Moreover, BET results indicated that the surface areas and pore volumes of the catalysts were significantly improved, and the pore sizes of Fe/MRM were distributed from 5 to 12 nm, which is typical for a mesoporous material. The activities of those catalysts for the catalytic decomposition of methane were studied at atmospheric pressure at a moderate temperature of 650 ∘ C; the results showed that the Fe/MRM catalysts were more active than RM and MRM. The methane conversion curves of Fe/MRM catalysts exhibited similar variation tendencies (three-step) during the reaction despite different Fe contents, and the loading amount of Fe clearly affected the activity of the catalysts.

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Coprecipitated iron-containing catalysts (Fe-Al2O3, Fe-Co-Al2O3, Fe-Ni-Al2O3) for methane decomposition at moderate temperatures

Cited by 92 publications

References 45 publications

Effect of Ce and Co Addition to Fe/Al2O3 for Catalytic Methane Decomposition

Effect of Ce and Co Addition to Fe/Al2O3 for Catalytic Methane Decomposition

Hydrogen and multiwall carbon nanotubes production by catalytic decomposition of methane: Thermogravimetric analysis and scaling-up of Fe–Mo catalysts

Preparation of Modified Red Mud-Supported Fe Catalysts for Hydrogen Production by Catalytic Methane Decomposition

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