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Title: 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:
 [1];  [1];  [1];  [2];  [1];  [1];  [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. 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}
}

Journal Article:

Citation Metrics:
Cited by: 11 works
Citation information provided by
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