Unconventional mesoporous single crystalline NiO by synergistically controlled evaporation and hydrolysis

Abstract

Constructing mesoporous single crystals is largely limited due to the challenge of controlling the assembly of nanocrystal building blocks via a conventional evaporation-induced self-assembly process. Here, we developed a facile synergistically controlled evaporation and hydrolysis method to prepare mesoporous single crystal NiO nanorod arrays. The crystallinity of mesoporous NiO is readily tuned from polycrystalline to single crystalline by controlling the evaporation and hydrolysis rates of precursor solvents.