TY - JOUR
T1 - Structure study of the tri-continuous mesoporous silica IBN-9 by electron crystallography
AU - Zhang, Daliang
AU - Sun, Junliang
AU - Han, Yu
AU - Zou, Xiaodong
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This project is supported by the Swedish Research Council (VR), the Swedish Governmental Agency for Innovation Systems (VINNOVA) and the Goran Gustafsson Foundation. We thank Knut and Alice Wallenberg Foundation for a grant for purchasing the TEMs used in this work.
PY - 2011/12
Y1 - 2011/12
N2 - High resolution electron microscopy (HRTEM) has unique advantages for structural determination of nano-sized porous materials compared to X-ray diffraction, because it provides the important structure factor phase information which is lost in diffraction. Here we demonstrate the structure determination of the first tri-continuous mesoporous silica IBN-9 by electron crystallography. IBN-9 has a hexagonal unit cell with the space group P6 3/mcm and a = 88.4 , c = 84.3 . HRTEM images taken along three main directions, [0 0 1], [11̄0] and [1 0 0] were combined to reconstruct the 3D electrostatic potential map, from which the tri-continuous pore structure of IBN-9 was discovered. The different steps of structure determination of unknown mesoporous structures by electron crystallography are described in details. Similar procedures can also be applied for structure determination of other porous and nonporous crystalline materials. © 2011 Elsevier Inc. All rights reserved.
AB - High resolution electron microscopy (HRTEM) has unique advantages for structural determination of nano-sized porous materials compared to X-ray diffraction, because it provides the important structure factor phase information which is lost in diffraction. Here we demonstrate the structure determination of the first tri-continuous mesoporous silica IBN-9 by electron crystallography. IBN-9 has a hexagonal unit cell with the space group P6 3/mcm and a = 88.4 , c = 84.3 . HRTEM images taken along three main directions, [0 0 1], [11̄0] and [1 0 0] were combined to reconstruct the 3D electrostatic potential map, from which the tri-continuous pore structure of IBN-9 was discovered. The different steps of structure determination of unknown mesoporous structures by electron crystallography are described in details. Similar procedures can also be applied for structure determination of other porous and nonporous crystalline materials. © 2011 Elsevier Inc. All rights reserved.
UR - http://hdl.handle.net/10754/561935
UR - https://linkinghub.elsevier.com/retrieve/pii/S1387181111002563
UR - http://www.scopus.com/inward/record.url?scp=80052439817&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2011.05.026
DO - 10.1016/j.micromeso.2011.05.026
M3 - Article
SN - 1387-1811
VL - 146
SP - 88
EP - 96
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
IS - 1-3
ER -