Progress in study of pore-expanding of γ-Al2O3 carriers
The commonly used pore-expanding methods for γ-Al2O3 carrier are summarized,which mainly include controlling the crystal particle size of precursor,template method,adding additives or pore-expanding agent,and other methods,such as hydrothermal treatment and low-temperature sintering.Combined with the specific examples,the advantages and limitations of each of the above pore-expanding methods are pointed out,and the research direction for the future preparation of macroporous γ-Al2O3 carriers is prospected.
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