Gas sensor using single-wall carbon nanohorns

Noriaki Sano, Masaru Kinugasa, Fumihiro Otsuki, Junya Suehiro

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We fabricated a gas sensor using single-walled carbon nanohorns (SWNHs) produced by the gas-injected arc-in-water method. This gas sensor consisted of agglomerated SWNHs as a coating film between Al electrodes on a glass substrate and the shift of the electric resistance of this coating film caused by gas adsorption was monitored. Its sensing property was examined for the detection of NH3 and O3 at room temperature. It was confirmed that the electrical resistance of the SWNHs film increases with adsorption of NH3, whereas the adsorption of O3 induced the decrease of the resistance. A model to correlate the gas concentration and the sensing property was proposed focusing on the detection of NH3 based on mono-layer adsorption and a second-order interaction of adsorbed gas molecules for charge transfer.

Original languageEnglish
Pages (from-to)455-466
Number of pages12
JournalAdvanced Powder Technology
Volume18
Issue number4
DOIs
Publication statusPublished - Jul 1 2007

Fingerprint

Nanohorns
Chemical sensors
Carbon
Gases
Adsorption
Coatings
Gas adsorption
Acoustic impedance
Charge transfer
Glass
Electrodes
Molecules
Water
Substrates
Temperature

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Mechanics of Materials

Cite this

Gas sensor using single-wall carbon nanohorns. / Sano, Noriaki; Kinugasa, Masaru; Otsuki, Fumihiro; Suehiro, Junya.

In: Advanced Powder Technology, Vol. 18, No. 4, 01.07.2007, p. 455-466.

Research output: Contribution to journalArticle

Sano, Noriaki ; Kinugasa, Masaru ; Otsuki, Fumihiro ; Suehiro, Junya. / Gas sensor using single-wall carbon nanohorns. In: Advanced Powder Technology. 2007 ; Vol. 18, No. 4. pp. 455-466.
@article{b8863863150e44cb8f328e37f70ab7f8,
title = "Gas sensor using single-wall carbon nanohorns",
abstract = "We fabricated a gas sensor using single-walled carbon nanohorns (SWNHs) produced by the gas-injected arc-in-water method. This gas sensor consisted of agglomerated SWNHs as a coating film between Al electrodes on a glass substrate and the shift of the electric resistance of this coating film caused by gas adsorption was monitored. Its sensing property was examined for the detection of NH3 and O3 at room temperature. It was confirmed that the electrical resistance of the SWNHs film increases with adsorption of NH3, whereas the adsorption of O3 induced the decrease of the resistance. A model to correlate the gas concentration and the sensing property was proposed focusing on the detection of NH3 based on mono-layer adsorption and a second-order interaction of adsorbed gas molecules for charge transfer.",
author = "Noriaki Sano and Masaru Kinugasa and Fumihiro Otsuki and Junya Suehiro",
year = "2007",
month = "7",
day = "1",
doi = "10.1163/156855207781389447",
language = "English",
volume = "18",
pages = "455--466",
journal = "Advanced Powder Technology",
issn = "0921-8831",
publisher = "Elsevier BV",
number = "4",

}

TY - JOUR

T1 - Gas sensor using single-wall carbon nanohorns

AU - Sano, Noriaki

AU - Kinugasa, Masaru

AU - Otsuki, Fumihiro

AU - Suehiro, Junya

PY - 2007/7/1

Y1 - 2007/7/1

N2 - We fabricated a gas sensor using single-walled carbon nanohorns (SWNHs) produced by the gas-injected arc-in-water method. This gas sensor consisted of agglomerated SWNHs as a coating film between Al electrodes on a glass substrate and the shift of the electric resistance of this coating film caused by gas adsorption was monitored. Its sensing property was examined for the detection of NH3 and O3 at room temperature. It was confirmed that the electrical resistance of the SWNHs film increases with adsorption of NH3, whereas the adsorption of O3 induced the decrease of the resistance. A model to correlate the gas concentration and the sensing property was proposed focusing on the detection of NH3 based on mono-layer adsorption and a second-order interaction of adsorbed gas molecules for charge transfer.

AB - We fabricated a gas sensor using single-walled carbon nanohorns (SWNHs) produced by the gas-injected arc-in-water method. This gas sensor consisted of agglomerated SWNHs as a coating film between Al electrodes on a glass substrate and the shift of the electric resistance of this coating film caused by gas adsorption was monitored. Its sensing property was examined for the detection of NH3 and O3 at room temperature. It was confirmed that the electrical resistance of the SWNHs film increases with adsorption of NH3, whereas the adsorption of O3 induced the decrease of the resistance. A model to correlate the gas concentration and the sensing property was proposed focusing on the detection of NH3 based on mono-layer adsorption and a second-order interaction of adsorbed gas molecules for charge transfer.

UR - http://www.scopus.com/inward/record.url?scp=34547523998&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547523998&partnerID=8YFLogxK

U2 - 10.1163/156855207781389447

DO - 10.1163/156855207781389447

M3 - Article

AN - SCOPUS:34547523998

VL - 18

SP - 455

EP - 466

JO - Advanced Powder Technology

JF - Advanced Powder Technology

SN - 0921-8831

IS - 4

ER -