Self-assembly of flowerlike AlOOH boehmite 3D nanoarchitectures.
In this work, a hydrothermal route using an ethanol-water solution to progressively synthesize a sequence of flowerlike three-dimensional gamma-AlOOH boehmite nanostructures without employing templates or matrixes for self-assembly is presented. The flowerlike boehmite nanoarchitectures exhibit three hierarchies of self-organization, i.e., single-crystalline nanorods, nanostrips, and bundles, which are characterized by scanning and transmission electron microscopy. The sequence of products obtained after different processing times indicates a self-assembly mechanism. The hydrogen bonding on the surface of nanorods or nanostrips possibly plays a key role, as identified by FTIR spectra of the products after they had been heated to 1000 degrees C. The specific surface area and pore-size distribution of the obtained product as determined by gas-sorption measurements show that the boehmite nanoarchitectures exhibit high BET surface area and porosity properties.
Zhang
Jun
J
Department of Physics, Central China Normal University, Wuhan 430079, P.R. China.
Liu
Sujing
S
Lin
Jing
J
Song
Haisheng
H
Luo
Junjie
J
Elssfah
E M
EM
Ammar
E
E
Huang
Yang
Y
Ding
Xiaoxia
X
Gao
Jianming
J
Qi
Shouren
S
Tang
Chengcun
C