Journal article
Four-Dimensional Imaging of ZnO-Coated Alumina Aerogels by Scanning Transmission X‑ray Microscopy and Ptychographic Tomography
Abstract
Functional porous materials are of increasing importance in energy conversion and catalysis. Improved analysis is needed to guide optimization. Four-dimensional (4D) imaging [chemical mapping in three-dimensional (3D) by spectro-tomography] of an Al2O3 aerogel coated with ZnO by atomic layer deposition was performed using soft X-ray ptychography at the Zn L-edge. A two-dimensional spatial resolution of 14(2) nm was achieved. Visualizations of …
Authors
Wu J; Zhu X; Shapiro DA; Lee JRI; Van Buuren T; Biener MM; Gammon SA; Li TT; Baumann TF; Hitchcock AP
Journal
The Journal of Physical Chemistry C, Vol. 122, No. 44, pp. 25374–25385
Publisher
American Chemical Society (ACS)
Publication Date
November 8, 2018
DOI
10.1021/acs.jpcc.8b07363
ISSN
1932-7447