Real-time detection of chlorine gas using Ni/Si shell/core nanowires

Dong Jin Lee, Kwang Heo, Hyungwoo Lee, Joon Hyung Jin, Hochan Chang, Minjun Park, Han Bo Ram Lee, Hyungjun Kim, Byung Yang Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We demonstrate the selective adsorption of Ni/Si shell/core nanowires (Ni-Si NWs) with a Ni outer shell and a Si inner core on molecularly patterned substrates and their application to sensors for the detection of chlorine gas, a toxic halogen gas. The molecularly patterned substrates consisted of polar SiO2 regions and nonpolar regions of self-assembled monolayers of octadecyltrichlorosilane (OTS). The NWs showed selective adsorption on the polar SiO2 regions, avoiding assembly on the nonpolar OTS regions. Utilizing these assembled Ni-Si NWs, we demonstrate a sensor for the detection of chlorine gas. The utilization of Ni-Si NWs resulted in a much larger sensor response of approximately 23% to 5 ppm of chlorine gas compared to bare Ni NWs, due to the increased surface-to-volume ratio of the Ni-Si shell/core structure. We expect that our sensor will be utilized in the future for the real-time detection of halogen gases including chlorine with high sensitivity and fast response.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalNanoscale Research Letters
Volume10
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

Chlorine
Nanowires
chlorine
nanowires
Gases
gases
Halogens
sensors
Sensors
polar regions
halogens
Adsorption
adsorption
Poisons
Self assembled monolayers
Substrates
assembly
sensitivity
octadecyltrichlorosilane

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Lee, D. J., Heo, K., Lee, H., Jin, J. H., Chang, H., Park, M., ... Lee, B. Y. (2015). Real-time detection of chlorine gas using Ni/Si shell/core nanowires. Nanoscale Research Letters, 10(1), 1-7. https://doi.org/10.1186/s11671-015-0729-2
Lee, Dong Jin ; Heo, Kwang ; Lee, Hyungwoo ; Jin, Joon Hyung ; Chang, Hochan ; Park, Minjun ; Lee, Han Bo Ram ; Kim, Hyungjun ; Lee, Byung Yang. / Real-time detection of chlorine gas using Ni/Si shell/core nanowires. In: Nanoscale Research Letters. 2015 ; Vol. 10, No. 1. pp. 1-7.
@article{d693b85494fa4d12a4e88980f2ec5dc0,
title = "Real-time detection of chlorine gas using Ni/Si shell/core nanowires",
abstract = "We demonstrate the selective adsorption of Ni/Si shell/core nanowires (Ni-Si NWs) with a Ni outer shell and a Si inner core on molecularly patterned substrates and their application to sensors for the detection of chlorine gas, a toxic halogen gas. The molecularly patterned substrates consisted of polar SiO2 regions and nonpolar regions of self-assembled monolayers of octadecyltrichlorosilane (OTS). The NWs showed selective adsorption on the polar SiO2 regions, avoiding assembly on the nonpolar OTS regions. Utilizing these assembled Ni-Si NWs, we demonstrate a sensor for the detection of chlorine gas. The utilization of Ni-Si NWs resulted in a much larger sensor response of approximately 23{\%} to 5 ppm of chlorine gas compared to bare Ni NWs, due to the increased surface-to-volume ratio of the Ni-Si shell/core structure. We expect that our sensor will be utilized in the future for the real-time detection of halogen gases including chlorine with high sensitivity and fast response.",
author = "Lee, {Dong Jin} and Kwang Heo and Hyungwoo Lee and Jin, {Joon Hyung} and Hochan Chang and Minjun Park and Lee, {Han Bo Ram} and Hyungjun Kim and Lee, {Byung Yang}",
year = "2015",
month = "1",
day = "1",
doi = "10.1186/s11671-015-0729-2",
language = "English",
volume = "10",
pages = "1--7",
journal = "Nanoscale Research Letters",
issn = "1931-7573",
publisher = "Springer New York",
number = "1",

}

Lee, DJ, Heo, K, Lee, H, Jin, JH, Chang, H, Park, M, Lee, HBR, Kim, H & Lee, BY 2015, 'Real-time detection of chlorine gas using Ni/Si shell/core nanowires', Nanoscale Research Letters, vol. 10, no. 1, pp. 1-7. https://doi.org/10.1186/s11671-015-0729-2

Real-time detection of chlorine gas using Ni/Si shell/core nanowires. / Lee, Dong Jin; Heo, Kwang; Lee, Hyungwoo; Jin, Joon Hyung; Chang, Hochan; Park, Minjun; Lee, Han Bo Ram; Kim, Hyungjun; Lee, Byung Yang.

In: Nanoscale Research Letters, Vol. 10, No. 1, 01.01.2015, p. 1-7.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Real-time detection of chlorine gas using Ni/Si shell/core nanowires

AU - Lee, Dong Jin

AU - Heo, Kwang

AU - Lee, Hyungwoo

AU - Jin, Joon Hyung

AU - Chang, Hochan

AU - Park, Minjun

AU - Lee, Han Bo Ram

AU - Kim, Hyungjun

AU - Lee, Byung Yang

PY - 2015/1/1

Y1 - 2015/1/1

N2 - We demonstrate the selective adsorption of Ni/Si shell/core nanowires (Ni-Si NWs) with a Ni outer shell and a Si inner core on molecularly patterned substrates and their application to sensors for the detection of chlorine gas, a toxic halogen gas. The molecularly patterned substrates consisted of polar SiO2 regions and nonpolar regions of self-assembled monolayers of octadecyltrichlorosilane (OTS). The NWs showed selective adsorption on the polar SiO2 regions, avoiding assembly on the nonpolar OTS regions. Utilizing these assembled Ni-Si NWs, we demonstrate a sensor for the detection of chlorine gas. The utilization of Ni-Si NWs resulted in a much larger sensor response of approximately 23% to 5 ppm of chlorine gas compared to bare Ni NWs, due to the increased surface-to-volume ratio of the Ni-Si shell/core structure. We expect that our sensor will be utilized in the future for the real-time detection of halogen gases including chlorine with high sensitivity and fast response.

AB - We demonstrate the selective adsorption of Ni/Si shell/core nanowires (Ni-Si NWs) with a Ni outer shell and a Si inner core on molecularly patterned substrates and their application to sensors for the detection of chlorine gas, a toxic halogen gas. The molecularly patterned substrates consisted of polar SiO2 regions and nonpolar regions of self-assembled monolayers of octadecyltrichlorosilane (OTS). The NWs showed selective adsorption on the polar SiO2 regions, avoiding assembly on the nonpolar OTS regions. Utilizing these assembled Ni-Si NWs, we demonstrate a sensor for the detection of chlorine gas. The utilization of Ni-Si NWs resulted in a much larger sensor response of approximately 23% to 5 ppm of chlorine gas compared to bare Ni NWs, due to the increased surface-to-volume ratio of the Ni-Si shell/core structure. We expect that our sensor will be utilized in the future for the real-time detection of halogen gases including chlorine with high sensitivity and fast response.

UR - http://www.scopus.com/inward/record.url?scp=84961341461&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84961341461&partnerID=8YFLogxK

U2 - 10.1186/s11671-015-0729-2

DO - 10.1186/s11671-015-0729-2

M3 - Article

VL - 10

SP - 1

EP - 7

JO - Nanoscale Research Letters

JF - Nanoscale Research Letters

SN - 1931-7573

IS - 1

ER -