Ni/La2O3-SiO2Catalysts Applied to Glycerol Steam Reforming Reaction: Effect of the Preparation Method and Reaction Temperature

Thyssen, Vivian Vazquez; Assaf, Elisabete Moreira

doi:10.5935/0103-5053.20140273

Cited by 3 publications

(4 citation statements)

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Section: Introductionmentioning

confidence: 99%

“…Ni catalysts with different support matrices show adequate activity and selectivity for H 2 production in various processes [5,6,7,8]. SiO 2 stands out among the supports used due to its high surface area and low acidity [5,6,8]. Alkaline-earth metal oxides act as structural promoters by increasing the dispersion of the active phase and stabilizing the dispersed metallic phase against sintering [9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

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Hydrogen Production by Formic Acid Decomposition over Ca Promoted Ni/SiO2 Catalysts: Effect of the Calcium Content

et al. 2019

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Formic acid, a major product of biomass processing, is regarded as a potential liquid carrier for hydrogen storage and delivery. The catalytic dehydrogenation of FA to generate hydrogen using heterogeneous catalysts is of great interest. Ni based catalysts supported on silica were synthesized by incipient wet impregnation. The effect of doping with an alkaline earth metal (calcium) was studied, and the solids were tested in the formic acid decomposition reaction to produce hydrogen. The catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and programmed temperature surface reaction (TPSR). The catalyst doped with 19.3 wt.% of Ca showed 100% conversion of formic acid at 160 °C, with a 92% of selectivity to hydrogen. In addition, all the tested materials were promising for their application, since they showed catalytic behaviors (conversion and selectivity to hydrogen) comparable to those of noble metals reported in the literature.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrogen Production by Formic Acid Decomposition over Ca Promoted Ni/SiO2 Catalysts: Effect of the Calcium Content

et al. 2019

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“…Catalyst dispersion can be defined as the fraction of the total number of metal atoms that are exposed on the surface . Researchers have reported that catalyst dispersion of higher than 40% is considered as a decent catalyst dispersion and high catalyst dispersion has resulted in a high catalytic activity of metal–supported catalysts. , Urdiana et al . found that catalysts with a high dispersion of metal particles had a better methane conversion in methane cracking.…”

Section: Introductionmentioning

confidence: 99%

“…11 Researchers have reported that catalyst dispersion of higher than 40% is considered as a decent catalyst dispersion and high catalyst dispersion has resulted in a high catalytic activity of metal−supported catalysts. 22,23 Urdiana et al 24 found that catalysts with a high dispersion of metal particles had a better methane conversion in methane cracking. The same trend was also observed in benzene hydrogenation reaction, in which the catalytic activity increased with the increase of catalyst dispersion.…”

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confidence: 99%

In Situ Glycine–Nitrate Combustion Synthesis of Ni–La/SiO₂ Catalyst for Methane Cracking

Tajuddin

Ideris

Ismail

2018

Ind. Eng. Chem. Res.

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Ni−La catalyst supported on SiO 2 (Ni−La/SiO 2 ) synthesized using in situ glycine−nitrate combustion was analyzed for catalyst dispersion at various catalyst-to-support ratios and support surface areas. Catalytic activity of the catalyst was assessed for methane cracking. The catalyst with higher support loading had a better catalyst dispersion. The use of a support with high surface area also improved catalyst dispersion. Ni−La/SiO 2 B synthesized using a support with high surface area have a higher catalyst dispersion than that of Ni−La/SiO 2 A with a support of low surface area. As a result, Ni−La/SiO 2 B had a better methane conversion (the maximum of ∼60%) than that of Ni−La/SiO 2 A (∼40%) and offered a higher H 2 yield. Moreover, Ni−La/SiO 2 B was found to be active for carbon formation. Nevertheless, the catalyst remained catalytically active for methane cracking without deactivation.

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Nano based nickel catalyst doped with promoters for renewable hydrogen production via steam reforming of glycerol

Ravuru,

Thacker,

Jain

et al. 2024

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Ni/La₂O₃-SiO₂Catalysts Applied to Glycerol Steam Reforming Reaction: Effect of the Preparation Method and Reaction Temperature

Cited by 3 publications

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Hydrogen Production by Formic Acid Decomposition over Ca Promoted Ni/SiO2 Catalysts: Effect of the Calcium Content

Hydrogen Production by Formic Acid Decomposition over Ca Promoted Ni/SiO2 Catalysts: Effect of the Calcium Content

In Situ Glycine–Nitrate Combustion Synthesis of Ni–La/SiO₂ Catalyst for Methane Cracking

Nano based nickel catalyst doped with promoters for renewable hydrogen production via steam reforming of glycerol

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Ni/La2O3-SiO2Catalysts Applied to Glycerol Steam Reforming Reaction: Effect of the Preparation Method and Reaction Temperature

Cited by 3 publications

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Hydrogen Production by Formic Acid Decomposition over Ca Promoted Ni/SiO2 Catalysts: Effect of the Calcium Content

Hydrogen Production by Formic Acid Decomposition over Ca Promoted Ni/SiO2 Catalysts: Effect of the Calcium Content

In Situ Glycine–Nitrate Combustion Synthesis of Ni–La/SiO2 Catalyst for Methane Cracking

Nano based nickel catalyst doped with promoters for renewable hydrogen production via steam reforming of glycerol

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Ni/La₂O₃-SiO₂Catalysts Applied to Glycerol Steam Reforming Reaction: Effect of the Preparation Method and Reaction Temperature

In Situ Glycine–Nitrate Combustion Synthesis of Ni–La/SiO₂ Catalyst for Methane Cracking