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Title: Composite WO 3/TiO 2 nanostructures for high electrochromic activity

Abstract

A composite material consisting of TiO 2 nanotubes (NT) with WO 3 electrodeposited on its surface has been fabricated, detached from its Ti substrate, and attached to a fluorine-doped tin oxide (FTO) film on glass for application to electrochromic (EC) reactions. Several adhesion layers were tested, finding that a paste of TiO 2 made from commercially available TiO 2 nanoparticles creates an interface for the TiO 2 NT film to attach to the FTO glass, which is conductive and does not cause solution-phase ions in an electrolyte to bind irreversibly with the material. The effect of NT length and WO 3 concentration on the EC performance were studied. As a result, the composite WO 3/TiO 2 nanostructures showed higher ion storage capacity, better stability, enhanced EC contrast, and longer memory time compared with the pure WO 3 and TiO 2 materials

Authors:
 [1];  [2];  [1];  [1]
  1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1182994
Report Number(s):
SAND-2014-16313J
Journal ID: ISSN 1944-8244; 533877
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 7; Journal Issue: 4; Journal ID: ISSN 1944-8244
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; electrochromism; reflectance devices; TiO2 nanotubes; WO3 nanostructures; Ti anodization; WO3 electrodeposition; composites

Citation Formats

Reyes-Gil, Karla R., Stephens, Zachary D., Stavila, Vitalie, and Robinson, David B. Composite WO3/TiO2 nanostructures for high electrochromic activity. United States: N. p., 2015. Web. doi:10.1021/am5050696.
Reyes-Gil, Karla R., Stephens, Zachary D., Stavila, Vitalie, & Robinson, David B. Composite WO3/TiO2 nanostructures for high electrochromic activity. United States. doi:10.1021/am5050696.
Reyes-Gil, Karla R., Stephens, Zachary D., Stavila, Vitalie, and Robinson, David B. Tue . "Composite WO3/TiO2 nanostructures for high electrochromic activity". United States. doi:10.1021/am5050696. https://www.osti.gov/servlets/purl/1182994.
@article{osti_1182994,
title = {Composite WO3/TiO2 nanostructures for high electrochromic activity},
author = {Reyes-Gil, Karla R. and Stephens, Zachary D. and Stavila, Vitalie and Robinson, David B.},
abstractNote = {A composite material consisting of TiO2 nanotubes (NT) with WO3 electrodeposited on its surface has been fabricated, detached from its Ti substrate, and attached to a fluorine-doped tin oxide (FTO) film on glass for application to electrochromic (EC) reactions. Several adhesion layers were tested, finding that a paste of TiO2 made from commercially available TiO2 nanoparticles creates an interface for the TiO2 NT film to attach to the FTO glass, which is conductive and does not cause solution-phase ions in an electrolyte to bind irreversibly with the material. The effect of NT length and WO3 concentration on the EC performance were studied. As a result, the composite WO3/TiO2 nanostructures showed higher ion storage capacity, better stability, enhanced EC contrast, and longer memory time compared with the pure WO3 and TiO2 materials},
doi = {10.1021/am5050696},
journal = {ACS Applied Materials and Interfaces},
number = 4,
volume = 7,
place = {United States},
year = {Tue Jan 06 00:00:00 EST 2015},
month = {Tue Jan 06 00:00:00 EST 2015}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 21 works
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