Ammonium aluminium carbonate hydroxide (AACH) is a promising alternative precursor for preparation of alumina with high purity and original textural properties. In this paper, both boehmite (classical alumina precursor) and AACH were precipitated in a stirred tank reactor with close process parameters. Preparation protocols were thus compared. Main differences between both protocols were pointed out (reactant molar ratio influence, alumina concentration, filtration/washing step). This study helps for the choice of the appropriate preparation route for alumina precursor synthesis. As-synthesized boehmite and AACH precursors were then calcined between 500 C and 1000 C. The textural properties of the corresponding aluminas were characterized. At 500 C, AACH-derived alumina revealed to be particularly porous, with larger mean pore diameter (ca. 29 nm) than boehmite-derived alumina (ca. 6 nm). Moreover, AACH-derived alumina exhibited a high surface area. However, a more accurate analysis revealed that this high specific surface area (407 m2. g-1) is mostly due to microporosity formation during the calcination step. At higher calcination temperature, boehmite and AACHderived aluminas exhibited different behaviors against sintering. In particular, the latter showed an interesting ability to maintain a constant mean pore diameter, regardless of the calcination temperature. (C) 2017 Elsevier B.V. All rights reserved.