Room temperature liquefied petroleum gas (LPG) sensor based on p-polyaniline/n-TiO2 heterojunction

Dattatray Dhawale, R. R. Salunkhe, U. M. Patil, K. V. Gurav, A. M. More, C. D. Lokhande

Research output: Contribution to journalArticle

102 Citations (Scopus)

Abstract

In the present work, we report on the performance of a room temperature (300 K) liquefied petroleum gas (LPG) sensor based on a p-polyaniline/n-TiO2 heterojunction. The heterojunction was fabricated using electrochemically deposited polyaniline on chemically deposited TiO2 on a stainless steel substrate. Both the methods (chemical bath deposition and electrodeposition) are simple, inexpensive and suitable for large-scale production. TiO2 and polyaniline films were characterized for their structural as well as surface morphologies and LPG response was studied. The XRD analysis showed formation of polycrystalline TiO2 while polyaniline exhibited amorphous nature. Morphological analysis using scanning electron microscopy (SEM) of the junction cross-section revealed formation of a diffusion free interface. The heterojunction showed the maximum response of 63% upon exposure to 0.1 vol% LPG at room temperature.

Original languageEnglish
Pages (from-to)988-992
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume134
Issue number2
DOIs
Publication statusPublished - 25 Sep 2008
Externally publishedYes

Fingerprint

Liquefied petroleum gas
Polyaniline
Chemical sensors
crude oil
Heterojunctions
heterojunctions
sensors
room temperature
gases
electrodeposition
Temperature
stainless steels
baths
Stainless Steel
Electrodeposition
Surface morphology
scanning electron microscopy
Stainless steel
cross sections
Scanning electron microscopy

Keywords

  • Heterojunction
  • LPG sensor
  • Polyaniline
  • Thin films
  • TiO

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry
  • Electrical and Electronic Engineering
  • Instrumentation
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Room temperature liquefied petroleum gas (LPG) sensor based on p-polyaniline/n-TiO2 heterojunction. / Dhawale, Dattatray; Salunkhe, R. R.; Patil, U. M.; Gurav, K. V.; More, A. M.; Lokhande, C. D.

In: Sensors and Actuators, B: Chemical, Vol. 134, No. 2, 25.09.2008, p. 988-992.

Research output: Contribution to journalArticle

Dhawale, Dattatray ; Salunkhe, R. R. ; Patil, U. M. ; Gurav, K. V. ; More, A. M. ; Lokhande, C. D. / Room temperature liquefied petroleum gas (LPG) sensor based on p-polyaniline/n-TiO2 heterojunction. In: Sensors and Actuators, B: Chemical. 2008 ; Vol. 134, No. 2. pp. 988-992.
@article{f7e474897c6941478358cfbb704603ee,
title = "Room temperature liquefied petroleum gas (LPG) sensor based on p-polyaniline/n-TiO2 heterojunction",
abstract = "In the present work, we report on the performance of a room temperature (300 K) liquefied petroleum gas (LPG) sensor based on a p-polyaniline/n-TiO2 heterojunction. The heterojunction was fabricated using electrochemically deposited polyaniline on chemically deposited TiO2 on a stainless steel substrate. Both the methods (chemical bath deposition and electrodeposition) are simple, inexpensive and suitable for large-scale production. TiO2 and polyaniline films were characterized for their structural as well as surface morphologies and LPG response was studied. The XRD analysis showed formation of polycrystalline TiO2 while polyaniline exhibited amorphous nature. Morphological analysis using scanning electron microscopy (SEM) of the junction cross-section revealed formation of a diffusion free interface. The heterojunction showed the maximum response of 63{\%} upon exposure to 0.1 vol{\%} LPG at room temperature.",
keywords = "Heterojunction, LPG sensor, Polyaniline, Thin films, TiO",
author = "Dattatray Dhawale and Salunkhe, {R. R.} and Patil, {U. M.} and Gurav, {K. V.} and More, {A. M.} and Lokhande, {C. D.}",
year = "2008",
month = "9",
day = "25",
doi = "10.1016/j.snb.2008.07.003",
language = "English",
volume = "134",
pages = "988--992",
journal = "Sensors and Actuators, B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Room temperature liquefied petroleum gas (LPG) sensor based on p-polyaniline/n-TiO2 heterojunction

AU - Dhawale, Dattatray

AU - Salunkhe, R. R.

AU - Patil, U. M.

AU - Gurav, K. V.

AU - More, A. M.

AU - Lokhande, C. D.

PY - 2008/9/25

Y1 - 2008/9/25

N2 - In the present work, we report on the performance of a room temperature (300 K) liquefied petroleum gas (LPG) sensor based on a p-polyaniline/n-TiO2 heterojunction. The heterojunction was fabricated using electrochemically deposited polyaniline on chemically deposited TiO2 on a stainless steel substrate. Both the methods (chemical bath deposition and electrodeposition) are simple, inexpensive and suitable for large-scale production. TiO2 and polyaniline films were characterized for their structural as well as surface morphologies and LPG response was studied. The XRD analysis showed formation of polycrystalline TiO2 while polyaniline exhibited amorphous nature. Morphological analysis using scanning electron microscopy (SEM) of the junction cross-section revealed formation of a diffusion free interface. The heterojunction showed the maximum response of 63% upon exposure to 0.1 vol% LPG at room temperature.

AB - In the present work, we report on the performance of a room temperature (300 K) liquefied petroleum gas (LPG) sensor based on a p-polyaniline/n-TiO2 heterojunction. The heterojunction was fabricated using electrochemically deposited polyaniline on chemically deposited TiO2 on a stainless steel substrate. Both the methods (chemical bath deposition and electrodeposition) are simple, inexpensive and suitable for large-scale production. TiO2 and polyaniline films were characterized for their structural as well as surface morphologies and LPG response was studied. The XRD analysis showed formation of polycrystalline TiO2 while polyaniline exhibited amorphous nature. Morphological analysis using scanning electron microscopy (SEM) of the junction cross-section revealed formation of a diffusion free interface. The heterojunction showed the maximum response of 63% upon exposure to 0.1 vol% LPG at room temperature.

KW - Heterojunction

KW - LPG sensor

KW - Polyaniline

KW - Thin films

KW - TiO

UR - http://www.scopus.com/inward/record.url?scp=51649100717&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=51649100717&partnerID=8YFLogxK

U2 - 10.1016/j.snb.2008.07.003

DO - 10.1016/j.snb.2008.07.003

M3 - Article

VL - 134

SP - 988

EP - 992

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

SN - 0925-4005

IS - 2

ER -