Studying Catalytically Viable Single-Crystalline Metal Oxide Nanorods Using Synchrotron-Based Scanning Hard X-ray Microscopy
Abstract
Synchrotron-based scanning hard X-ray microscopy (SHXM) was used to extract localized chemical and structural information within a system of model alkaline earth-metal tungstate nanorods, characterized by multiple chemical configurations. Specifically, we have highlighted the practical ability of SHXM to probe chemically distinctive nanoscale species, consisting of (i) chemically doped versus (ii) solid solution-state nanorods of comparable dimension, synthesized using a template-directed method under ambient conditions. Indeed, we show that SHXM can be used to map out elemental distributions within individual anisotropic nanorods with nanoscale resolution, coupled with chemical sensitivity and specificity. Complementary electrochemical results suggest the possibility of using these nanorods as support materials for electro-oxidation reactions within an acidic electrolyte medium. Our structural and chemical composition results have been corroborated using parallel lines of inquiry involving scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Furthermore, these measurements confirmed the relatively even and uniform distribution of the expected, individual elements within all of the nanorod samples tested.
- Authors:
-
- State Univ. of New York at Stony Brook, Stony Brook, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1546041
- Report Number(s):
- BNL-211887-2019-JAAM
Journal ID: ISSN 1932-7447
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physical Chemistry. C
- Additional Journal Information:
- Journal Volume: 123; Journal Issue: 28; Journal ID: ISSN 1932-7447
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY
Citation Formats
Li, Luyao, Tan, Sha, Yue, Shiyu, Yan, Hanfei, Chu, Yong S., Tong, Xiao, and Wong, Stanislaus S. Studying Catalytically Viable Single-Crystalline Metal Oxide Nanorods Using Synchrotron-Based Scanning Hard X-ray Microscopy. United States: N. p., 2019.
Web. doi:10.1021/acs.jpcc.9b05027.
Li, Luyao, Tan, Sha, Yue, Shiyu, Yan, Hanfei, Chu, Yong S., Tong, Xiao, & Wong, Stanislaus S. Studying Catalytically Viable Single-Crystalline Metal Oxide Nanorods Using Synchrotron-Based Scanning Hard X-ray Microscopy. United States. https://doi.org/10.1021/acs.jpcc.9b05027
Li, Luyao, Tan, Sha, Yue, Shiyu, Yan, Hanfei, Chu, Yong S., Tong, Xiao, and Wong, Stanislaus S. Mon .
"Studying Catalytically Viable Single-Crystalline Metal Oxide Nanorods Using Synchrotron-Based Scanning Hard X-ray Microscopy". United States. https://doi.org/10.1021/acs.jpcc.9b05027. https://www.osti.gov/servlets/purl/1546041.
@article{osti_1546041,
title = {Studying Catalytically Viable Single-Crystalline Metal Oxide Nanorods Using Synchrotron-Based Scanning Hard X-ray Microscopy},
author = {Li, Luyao and Tan, Sha and Yue, Shiyu and Yan, Hanfei and Chu, Yong S. and Tong, Xiao and Wong, Stanislaus S.},
abstractNote = {Synchrotron-based scanning hard X-ray microscopy (SHXM) was used to extract localized chemical and structural information within a system of model alkaline earth-metal tungstate nanorods, characterized by multiple chemical configurations. Specifically, we have highlighted the practical ability of SHXM to probe chemically distinctive nanoscale species, consisting of (i) chemically doped versus (ii) solid solution-state nanorods of comparable dimension, synthesized using a template-directed method under ambient conditions. Indeed, we show that SHXM can be used to map out elemental distributions within individual anisotropic nanorods with nanoscale resolution, coupled with chemical sensitivity and specificity. Complementary electrochemical results suggest the possibility of using these nanorods as support materials for electro-oxidation reactions within an acidic electrolyte medium. Our structural and chemical composition results have been corroborated using parallel lines of inquiry involving scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. Furthermore, these measurements confirmed the relatively even and uniform distribution of the expected, individual elements within all of the nanorod samples tested.},
doi = {10.1021/acs.jpcc.9b05027},
journal = {Journal of Physical Chemistry. C},
number = 28,
volume = 123,
place = {United States},
year = {Mon Jul 08 00:00:00 EDT 2019},
month = {Mon Jul 08 00:00:00 EDT 2019}
}
Web of Science
Figures / Tables:
Figures / Tables found in this record: