Chemically enhanced thermal stability of anodized nanostructured zirconia membranes

Tanushree Holme Choudhury, Michael Rajamathi, Srinivasan Raghavan

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Anodized nanotubular and nanoporous zirconia membranes are of interest for applications involving elevated temperatures in excess of 400 °C, such as templates for the synthesis of nanostructures, catalyst supports, fuel cells and sensors. Thermal stability is thus an important attribute. The study described in this paper shows that the as-anodized nanoporous membranes can withstand more adverse temperature-time combinations than nanotubular membranes. Chemical treatment of the nanoporous membranes was found to further enhance their thermal stability. The net result is an enhancement in the limiting temperature from 500 °C for nanotubular membranes to 1000 °C for the chemically treated nanoporous membranes. The reasons for membrane degradation on thermal exposure and the mechanism responsible for retarding the same are discussed within the framework of the theory of thermal grooving.

Original languageEnglish (US)
Pages (from-to)6885-6893
Number of pages9
JournalJournal of Materials Chemistry
Volume22
Issue number14
DOIs
StatePublished - Apr 14 2012

Fingerprint

Zirconia
Thermodynamic stability
Membranes
zirconium oxide
Catalyst supports
Temperature
Fuel cells
Nanostructures
Degradation
Sensors

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

Choudhury, Tanushree Holme ; Rajamathi, Michael ; Raghavan, Srinivasan. / Chemically enhanced thermal stability of anodized nanostructured zirconia membranes. In: Journal of Materials Chemistry. 2012 ; Vol. 22, No. 14. pp. 6885-6893.
@article{1d476661f0c04ccfad3af81fd528eb14,
title = "Chemically enhanced thermal stability of anodized nanostructured zirconia membranes",
abstract = "Anodized nanotubular and nanoporous zirconia membranes are of interest for applications involving elevated temperatures in excess of 400 °C, such as templates for the synthesis of nanostructures, catalyst supports, fuel cells and sensors. Thermal stability is thus an important attribute. The study described in this paper shows that the as-anodized nanoporous membranes can withstand more adverse temperature-time combinations than nanotubular membranes. Chemical treatment of the nanoporous membranes was found to further enhance their thermal stability. The net result is an enhancement in the limiting temperature from 500 °C for nanotubular membranes to 1000 °C for the chemically treated nanoporous membranes. The reasons for membrane degradation on thermal exposure and the mechanism responsible for retarding the same are discussed within the framework of the theory of thermal grooving.",
author = "Choudhury, {Tanushree Holme} and Michael Rajamathi and Srinivasan Raghavan",
year = "2012",
month = "4",
day = "14",
doi = "10.1039/c2jm14906k",
language = "English (US)",
volume = "22",
pages = "6885--6893",
journal = "Journal of Materials Chemistry",
issn = "0959-9428",
publisher = "Royal Society of Chemistry",
number = "14",

}

Chemically enhanced thermal stability of anodized nanostructured zirconia membranes. / Choudhury, Tanushree Holme; Rajamathi, Michael; Raghavan, Srinivasan.

In: Journal of Materials Chemistry, Vol. 22, No. 14, 14.04.2012, p. 6885-6893.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Chemically enhanced thermal stability of anodized nanostructured zirconia membranes

AU - Choudhury, Tanushree Holme

AU - Rajamathi, Michael

AU - Raghavan, Srinivasan

PY - 2012/4/14

Y1 - 2012/4/14

N2 - Anodized nanotubular and nanoporous zirconia membranes are of interest for applications involving elevated temperatures in excess of 400 °C, such as templates for the synthesis of nanostructures, catalyst supports, fuel cells and sensors. Thermal stability is thus an important attribute. The study described in this paper shows that the as-anodized nanoporous membranes can withstand more adverse temperature-time combinations than nanotubular membranes. Chemical treatment of the nanoporous membranes was found to further enhance their thermal stability. The net result is an enhancement in the limiting temperature from 500 °C for nanotubular membranes to 1000 °C for the chemically treated nanoporous membranes. The reasons for membrane degradation on thermal exposure and the mechanism responsible for retarding the same are discussed within the framework of the theory of thermal grooving.

AB - Anodized nanotubular and nanoporous zirconia membranes are of interest for applications involving elevated temperatures in excess of 400 °C, such as templates for the synthesis of nanostructures, catalyst supports, fuel cells and sensors. Thermal stability is thus an important attribute. The study described in this paper shows that the as-anodized nanoporous membranes can withstand more adverse temperature-time combinations than nanotubular membranes. Chemical treatment of the nanoporous membranes was found to further enhance their thermal stability. The net result is an enhancement in the limiting temperature from 500 °C for nanotubular membranes to 1000 °C for the chemically treated nanoporous membranes. The reasons for membrane degradation on thermal exposure and the mechanism responsible for retarding the same are discussed within the framework of the theory of thermal grooving.

UR - http://www.scopus.com/inward/record.url?scp=84858725500&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84858725500&partnerID=8YFLogxK

U2 - 10.1039/c2jm14906k

DO - 10.1039/c2jm14906k

M3 - Article

VL - 22

SP - 6885

EP - 6893

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

SN - 0959-9428

IS - 14

ER -