Sensitive detection of nitrogen oxides based upon capacitance changes in binary oxide mixture

Tatsumi Ishihara, Shinobu Sato, Yusaku Takita

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The capacitance of mixed oxides consisting of oxides with different semiconducting properties decreases upon exposure to NO. In particular, the mixed oxide NiO-WO3 exhibits an extremely large capacitance decrease upon exposure to 100 ppm NO, but a period longer than 30 min is required to recover the original capacitance level after changing to air without NO. On the other hand, the mixed oxide WO3-ZnO exhibits a large capacitance decrease upon exposure to NO and its capacitance decreases with increases in the NO concentration up to 300 ppm. Therefore, the concentration of nitrogen oxide can be analysed by the capacitance of these mixed oxides.

Original languageEnglish
Pages (from-to)43-45
Number of pages3
JournalSensors and Actuators, B: Chemical
Volume30
Issue number1
DOIs
Publication statusPublished - Jan 1 1996
Externally publishedYes

Fingerprint

Nitrogen Oxides
nitrogen oxides
Nitrogen oxides
Oxides
Capacitance
capacitance
mixed oxides
oxides
Nitric Oxide
air
Air

All Science Journal Classification (ASJC) codes

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

Cite this

Sensitive detection of nitrogen oxides based upon capacitance changes in binary oxide mixture. / Ishihara, Tatsumi; Sato, Shinobu; Takita, Yusaku.

In: Sensors and Actuators, B: Chemical, Vol. 30, No. 1, 01.01.1996, p. 43-45.

Research output: Contribution to journalArticle

@article{a6d61ac28f964a5c991389533fdb7e4f,
title = "Sensitive detection of nitrogen oxides based upon capacitance changes in binary oxide mixture",
abstract = "The capacitance of mixed oxides consisting of oxides with different semiconducting properties decreases upon exposure to NO. In particular, the mixed oxide NiO-WO3 exhibits an extremely large capacitance decrease upon exposure to 100 ppm NO, but a period longer than 30 min is required to recover the original capacitance level after changing to air without NO. On the other hand, the mixed oxide WO3-ZnO exhibits a large capacitance decrease upon exposure to NO and its capacitance decreases with increases in the NO concentration up to 300 ppm. Therefore, the concentration of nitrogen oxide can be analysed by the capacitance of these mixed oxides.",
author = "Tatsumi Ishihara and Shinobu Sato and Yusaku Takita",
year = "1996",
month = "1",
day = "1",
doi = "10.1016/0925-4005(95)01744-G",
language = "English",
volume = "30",
pages = "43--45",
journal = "Sensors and Actuators, B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Sensitive detection of nitrogen oxides based upon capacitance changes in binary oxide mixture

AU - Ishihara, Tatsumi

AU - Sato, Shinobu

AU - Takita, Yusaku

PY - 1996/1/1

Y1 - 1996/1/1

N2 - The capacitance of mixed oxides consisting of oxides with different semiconducting properties decreases upon exposure to NO. In particular, the mixed oxide NiO-WO3 exhibits an extremely large capacitance decrease upon exposure to 100 ppm NO, but a period longer than 30 min is required to recover the original capacitance level after changing to air without NO. On the other hand, the mixed oxide WO3-ZnO exhibits a large capacitance decrease upon exposure to NO and its capacitance decreases with increases in the NO concentration up to 300 ppm. Therefore, the concentration of nitrogen oxide can be analysed by the capacitance of these mixed oxides.

AB - The capacitance of mixed oxides consisting of oxides with different semiconducting properties decreases upon exposure to NO. In particular, the mixed oxide NiO-WO3 exhibits an extremely large capacitance decrease upon exposure to 100 ppm NO, but a period longer than 30 min is required to recover the original capacitance level after changing to air without NO. On the other hand, the mixed oxide WO3-ZnO exhibits a large capacitance decrease upon exposure to NO and its capacitance decreases with increases in the NO concentration up to 300 ppm. Therefore, the concentration of nitrogen oxide can be analysed by the capacitance of these mixed oxides.

UR - http://www.scopus.com/inward/record.url?scp=0029755176&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029755176&partnerID=8YFLogxK

U2 - 10.1016/0925-4005(95)01744-G

DO - 10.1016/0925-4005(95)01744-G

M3 - Article

AN - SCOPUS:0029755176

VL - 30

SP - 43

EP - 45

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

SN - 0925-4005

IS - 1

ER -