Structure–Activity Relationships of Hierarchical Meso–Macroporous Alumina Supported Copper Catalysts for CO2 Hydrogenation: Effects of Calcination Temperature of Alumina Support

Kanjanasoontorn, Nawapon; Permsirivanich, Tinnavat; Numpilai, Thanapa; Witoon, Thongthai; Chanlek, Narong; Niamlaem, Malinee; Warakulwit, Chompunuch; Limtrakul, Jumras

doi:10.1007/s10562-016-1849-8

Cited by 21 publications

(14 citation statements)

References 35 publications

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“…In Table 5, the weak, strong, and total acid sites follow the trend: CoMo/ -Al 2 O 3 >CoMo/ -Al 2 O 3 . The strong acid sites have been signi cantly dropped by increasing the calcination temperature of the support, which is in good agreement with literature results [42][43][44]. This correlates with the ratios of the support surface area and their dehydroxylation during the calcination.…”

Section: Resultssupporting

confidence: 91%

Comparison of γ and δ-Al2O3 supported CoMo catalysts in the hydrodesulfurization of straight-run gas oil

2019

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The e ect of two di erent crystal species of alumina on the hydrodesulfurization activity of the corresponding CoMo catalysts was studied. Cylindrical extruded alumina with two di erent crystal structures, i.e., -Al2O3 and -Al2O3, was prepared using boehmite and nitric acid as a peptizing agent by calcination at 550 C and 900 C, respectively. Al2O3 supports were impregnated with 9 wt.% of Mo and 2 wt.% Co by an incipient wetness impregnation method. CoMo/Al 2 O 3 catalysts were used for hydrodesulfurization (HDS) and hydrodenitri cation (HDN) of Iranian Straight-Run Gas Oil (ISRGO). The supports and catalysts were characterized by nitrogen adsorptiondesorption isotherm, XRD, UV-vis-DRS, TPD, TPR, CO chemisorption, and ICP-OES. The HDS activity of CoMo/ -Al2O3 catalyst was higher than that of CoMo/ -Al2O3 and was found to be 95.74%. This result was obtained from the formation of larger CoMoO 4 and MoO 3 crystals in CoMo/ -Al 2 O 3 catalyst, thus reducing the active metal phase dispersion and the performance of the catalyst. The HDS activity of CoMo/ -Al2O3 catalyst was remarkable as the metal content of the catalyst was low. The HDN activity of CoMo/ -Al2O3 was also about 66%.

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Section: Resultssupporting

confidence: 91%

Comparison of γ and δ-Al2O3 supported CoMo catalysts in the hydrodesulfurization of straight-run gas oil

2019

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“…6 and 8), and accelerate the methanol synthesis. Similarly, Witoon et al 48 also found that the strong interaction between copper and alumina support contributed to the interfacial contact creating a large number of active sites for CO 2 and H 2 adsorption, resulting in the maximum yield of methanol. All these phenomena demonstrate that the interaction is a crucial factor to determine the catalytic activity in this system.…”

Section: Dominant Factors For Co 2 Hydrogenation To Methanol Over Cz mentioning

confidence: 87%

Structure–activity relationships of Cu–ZrO₂ catalysts for CO₂ hydrogenation to methanol: interaction effects and reaction mechanism

et al. 2017

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“…There is no evidence of neither Cu nor Ni oxidized species. This could be related to the presence of finely dispersed nanometric metallic oxides that cannot be detected, but also to metallic spinel species that overlap the crystalline support [54][55][56][57]…”

Section: Crystalline Phases Before and After Activationmentioning

confidence: 99%

Boosting the performance of Ni/Al₂O₃ for the reverse water gas shift reaction through formation of CuNi nanoalloys

Gioria

Ingale

Pohl

et al. 2022

Catal. Sci. Technol.

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Structure–Activity Relationships of Hierarchical Meso–Macroporous Alumina Supported Copper Catalysts for CO2 Hydrogenation: Effects of Calcination Temperature of Alumina Support

Cited by 21 publications

References 35 publications

Comparison of γ and δ-Al2O3 supported CoMo catalysts in the hydrodesulfurization of straight-run gas oil

Comparison of γ and δ-Al2O3 supported CoMo catalysts in the hydrodesulfurization of straight-run gas oil

Structure–activity relationships of Cu–ZrO₂ catalysts for CO₂ hydrogenation to methanol: interaction effects and reaction mechanism

Boosting the performance of Ni/Al₂O₃ for the reverse water gas shift reaction through formation of CuNi nanoalloys

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Structure–Activity Relationships of Hierarchical Meso–Macroporous Alumina Supported Copper Catalysts for CO2 Hydrogenation: Effects of Calcination Temperature of Alumina Support

Cited by 21 publications

References 35 publications

Comparison of γ and δ-Al2O3 supported CoMo catalysts in the hydrodesulfurization of straight-run gas oil

Comparison of γ and δ-Al2O3 supported CoMo catalysts in the hydrodesulfurization of straight-run gas oil

Structure–activity relationships of Cu–ZrO2 catalysts for CO2 hydrogenation to methanol: interaction effects and reaction mechanism

Boosting the performance of Ni/Al2O3 for the reverse water gas shift reaction through formation of CuNi nanoalloys

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Structure–activity relationships of Cu–ZrO₂ catalysts for CO₂ hydrogenation to methanol: interaction effects and reaction mechanism

Boosting the performance of Ni/Al₂O₃ for the reverse water gas shift reaction through formation of CuNi nanoalloys