Synthesis and characterization of amorphous Al₂O₃ and γ-Al₂O₃ by spray pyrolysis

Abstract

As an environmentally friendly method, spray pyrolysis has been widely used to produce a variety of metal oxides and composite metal oxides. Spray pyrolysis is used to synthesize amorphous Al

Environmentally friendly nanoflower Al2O3@carbon spheres as adsorbent for dispersive solid-phase microextraction of copper and lead in food and water samples

“…The results are in good agreement with the SEM micrographs of NF Al 2 O 3 and NF Al 2 O 3 @CSs. The XRD pattern of NF Al 2 O 3 is very similar to that of the previously synthesized nano Al 2 O 3 compound 24. The FE-SEM image of the NF Al 2 O 3 is given in Fig.1B(a and b).…”

“…The XRD pattern of NF Al 2 O 3 is very similar to that of the previously synthesized nano Al 2 O 3 compound. 24…”

“…The XRD pattern of NF Al 2 O 3 is very similar to that of the previously synthesized nano Al 2 O 3 compound. 24 The FE-SEM image of the NF Al 2 O 3 is given in Fig. 1B(a and b).…”

Cadmium as a Robust and Novel Promoter over Ni@γ-Al2O3 Catalysts in Dry Methane Reforming

“…49 All samples exhibited characteristic peaks at 2θ = 45.90 and 67.10°a scribed to γ-Al 2 O 3 . 50,51 In the case of Cd(20%)@Al 2 O 3 , the peaks observed at 2θ = 33.52, 38.36, 55.37, and 65.90°c orresponded to the (111), ( 200), (220), and (311) reflective planes of CdO species (confirmed according to the standard JCPDS values). 52 For the other samples containing Cd, the characteristic peak was slightly shifted to the right at 2θ = 66.80°, overlapping with the more substantial peak of Al 2 O 3 (Figure 1b,c).…”

The Formation of Cr-Al Spinel under a Reductive Atmosphere

“…Its structure can be regarded as spinel type in which oxygen atoms are arranged in a cubic close packing and Al atoms occupy the octahedrally and tetrahedrally coordinated sites. γ-Al 2 O 3 , which is also called activated alumina, has a large surface area and strong adsorption capacity, and therefore is widely employed as absorbents, catalyst supports, chromatographic media, and ion exchanges [3][4][5].…”