Comment on “High-surface-area corundum by mechanochemically induced phase transformation of boehmite”
Jiangong Li, Sanxu Pu, Wenbin Cao, Lu Li, Ruiyun Guo
Abstract
Amrute et al . (Reports, 25 October 2019, p. 485) claimed that no methods were able to produce high-purity α-Al 2 O 3 with surface areas greater than 100 m 2 g –1 , even though much higher surface areas up to 253 m 2 g –1 have been reported. Moreover, the materials they obtained could be porous aggregates and may not be 13-nm nanoparticles, as claimed.
Topics & Concepts
BoehmiteCorundumTransformation (genetics)Phase (matter)Surface (topology)Materials scienceMineralogyChemistryMetallurgyGeometryMathematicsAluminiumOrganic chemistryBiochemistryGeneMineralogy and Gemology StudiesX-ray Diffraction in CrystallographyGeological and Geochemical Analysis