Catalytic partial oxidation of methane

Xem 1-2 trên 2 kết quả Catalytic partial oxidation of methane

Effect of Fe substitution on the partial oxidation of methane to syngas over La0.7Sr0.3Co1−yFeyO3−δ perovskites

In this research, a series of La0.7Sr0.3Co1−yFeyO3−δ (y = 0.0–0.4) was successfully synthesized by a solidstate reaction method and syngas production studies were performed using gas chromatography. Thermogravimetric analysis characterized the concentration of Fe3+, which gave a low H2/CO ratio over La0.7Sr0.3Co1−yFeyO3−δ without the presence of molecular oxygen. All samples possessed a purely rhombohedral structure. The incorporation of more Fe increased the lattice parameter and changed XRD peaks of the La1−xSrxCo0.8Fe0.2O3 from sharp and single to double.

9p tudichquannguyet 29-11-2021 7 0 Download

Synthesis of Ni/Al2O3 catalysts via alkaline polyol method and hydrazine reduction method for the partial oxidation of methane

Nickel catalysts supported on γ-Al2 O3 were synthesized in the presence of polyvinylpyrrolidone (PVP) using both alkaline polyol method and hydrazine reduction method while fixing the weight ratio of [(PVP)]/[Ni(CH3COO)2·4H2O] at 2. The effects of hydrazine [N2H5OH]/[Ni] and [NaOH]/[Ni] molar ratios on the structural properties of the catalysts were characterized by transmission electron microscopy (HRTEM) and by X-ray diffraction (XRD). The average of monodispersed Ni nanoparticles ranged between 8.0 and 13.0 nm.

19p tudichquannguyet 29-11-2021 10 1 Download