Transformation of amorphous TiO2 to a hydronium oxofluorotitanate and applications as an HF sensor
Abstract
We examined amorphous titania thin films for use as the active material in a polarimetry based HF sensor. The amorphous titania films were found to be sensitive to vapor phase HF and the reaction product was identified as a hydronium oxofluorotitanate phase, which has previously only been synthesized in aqueous solution. The extent of reaction varied both with vapor phase HF concentration, relative humidity, and the exposure time. HF concentrations as low as 1 ppm could be detected for exposure times of 120 h.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies (CINT-SNL)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
- OSTI Identifier:
- 1257988
- Alternate Identifier(s):
- OSTI ID: 1252543
- Report Number(s):
- SAND-2015-6515J
Journal ID: ISSN 0925-4005; PII: S0925400515307930
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Sensors and Actuators. B, Chemical
- Additional Journal Information:
- Journal Volume: 228; Journal Issue: C; Journal ID: ISSN 0925-4005
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Hydrofluoric acid; Titania; Oxyfluoride; HF sensor; Polarimetry
Citation Formats
Appelhans, Leah N., Finnegan, Patrick S., Massey, Lee T., Luk, Ting S., Rodriguez, Mark A., Brumbach, Michael T., McKenzie, Bonnie, and Craven, Julia M. Transformation of amorphous TiO2 to a hydronium oxofluorotitanate and applications as an HF sensor. United States: N. p., 2015.
Web. doi:10.1016/j.snb.2015.12.068.
Appelhans, Leah N., Finnegan, Patrick S., Massey, Lee T., Luk, Ting S., Rodriguez, Mark A., Brumbach, Michael T., McKenzie, Bonnie, & Craven, Julia M. Transformation of amorphous TiO2 to a hydronium oxofluorotitanate and applications as an HF sensor. United States. https://doi.org/10.1016/j.snb.2015.12.068
Appelhans, Leah N., Finnegan, Patrick S., Massey, Lee T., Luk, Ting S., Rodriguez, Mark A., Brumbach, Michael T., McKenzie, Bonnie, and Craven, Julia M. 2015.
"Transformation of amorphous TiO2 to a hydronium oxofluorotitanate and applications as an HF sensor". United States. https://doi.org/10.1016/j.snb.2015.12.068. https://www.osti.gov/servlets/purl/1257988.
@article{osti_1257988,
title = {Transformation of amorphous TiO2 to a hydronium oxofluorotitanate and applications as an HF sensor},
author = {Appelhans, Leah N. and Finnegan, Patrick S. and Massey, Lee T. and Luk, Ting S. and Rodriguez, Mark A. and Brumbach, Michael T. and McKenzie, Bonnie and Craven, Julia M.},
abstractNote = {We examined amorphous titania thin films for use as the active material in a polarimetry based HF sensor. The amorphous titania films were found to be sensitive to vapor phase HF and the reaction product was identified as a hydronium oxofluorotitanate phase, which has previously only been synthesized in aqueous solution. The extent of reaction varied both with vapor phase HF concentration, relative humidity, and the exposure time. HF concentrations as low as 1 ppm could be detected for exposure times of 120 h.},
doi = {10.1016/j.snb.2015.12.068},
url = {https://www.osti.gov/biblio/1257988},
journal = {Sensors and Actuators. B, Chemical},
issn = {0925-4005},
number = C,
volume = 228,
place = {United States},
year = {Thu Dec 24 00:00:00 EST 2015},
month = {Thu Dec 24 00:00:00 EST 2015}
}
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