Mixed metal oxide (MMO) is one of the widely utilized ceramic materials in various industries. In order to obtain high performance, specific surface area MMO should be controlled. Calcination layered double hydroxide (LDH) a versatile way prepare with homogeneous distribution and well-developed porosity. Although researchers found that LDH-originated was relatively high, it had not been systema...

The measured dissolution rate of a granular medium depends on its surface area and how the changes during course measurement. Moreover, assumption that specific either remains constant or initially increases is not always valid. This paper demonstrates when particle size distribution has sufficient variance, instantaneous change in can be negative, even before smallest particles dissolve away. ...