Selective dual detection of hydrogen sulfide and methyl mercaptan using CuO/CuFe2O4 nanopattern chemiresistors

Kyeorei Lim; Young Moo Jo; Seonghwan Kim; Ji Wook Yoon; Seong Yong Jeong; Jun Sik Kim; Hun Ji Choi; Youngkyu Cho; Jangpyo Park; Yong Won Jeong; Jong Heun Lee

doi:10.1016/j.snb.2021.130665

Selective dual detection of hydrogen sulfide and methyl mercaptan using CuO/CuFe₂O₄ nanopattern chemiresistors

Kyeorei Lim, Young Moo Jo, Seonghwan Kim, Ji Wook Yoon, Seong Yong Jeong, Jun Sik Kim, Hun Ji Choi, Youngkyu Cho, Jangpyo Park, Yong Won Jeong, Jong Heun Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Volatile sulfur compounds (VSCs), such as H₂S and methyl mercaptan (MM), are malodorous and harmful gases. H₂S and MM share analogical origins. However, they should be discriminated because of their different odor thresholds and health impacts. Herein, a nanopattern chemiresistor composed of aligned CuO-loaded CuFe₂O₄ nanofibers was prepared via direct-write near-field electrospinning. The CuO/CuFe₂O₄ sensor with the atomic ratio of [Cu]:[Fe] = 3:4 exhibited extremely high responses to ppm-level H₂S and MM compared with other nanopattern sensors with different compositions ([Cu]/[Fe] = 2:4, 4:4, and 0:1). This can be attributed to the gas-accessible morphology of the nanopattern sensor, the formation of a nanoscale p(CuO)-n(CuFe₂O₄) junction, and the intimate reaction between the discretely loaded CuO nanoparticles and the VSCs. Furthermore, the CuO/CuFe₂O₄ sensor exhibited high selectivities to H₂S and MM at 200 ℃ and 400 ℃, respectively. The selective dual detection of H₂S and MM using a single CuO/CuFe₂O₄ sensor via the simple modulation of the sensing temperature opens a new route for indoor air quality monitoring, ventilation control, halitosis diagnosis, and wine quality monitoring.

Original language	English
Article number	130665
Journal	Sensors and Actuators, B: Chemical
Volume	348
DOIs	https://doi.org/10.1016/j.snb.2021.130665
Publication status	Published - 2021 Dec 1

Bibliographical note

Funding Information:
This study was supported by SAMSUNG Research , Samsung Electronics Co. Ltd., Republic of Korea and National Research Foundation of Korea grant funded by the Korean Government , Republic of Korea (No. 2021M3H4A3A02086430 ).

Funding Information:
This study was supported by SAMSUNG Research, Samsung Electronics Co. Ltd. Republic of Korea and National Research Foundation of Korea grant funded by the Korean Government, Republic of Korea (No. 2021M3H4A3A02086430).

Publisher Copyright:
© 2021 Elsevier B.V.

Keywords

Dual-mode gas sensor
Malodor gas sensor
Near-field electrospinning
Oxide nanopattern
Volatile sulfur compound sensor

ASJC Scopus subject areas

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

Access to Document

10.1016/j.snb.2021.130665

Cite this

@article{29fe340b9a424d9e8ab6f21761df1409,

title = "Selective dual detection of hydrogen sulfide and methyl mercaptan using CuO/CuFe2O4 nanopattern chemiresistors",

abstract = "Volatile sulfur compounds (VSCs), such as H2S and methyl mercaptan (MM), are malodorous and harmful gases. H2S and MM share analogical origins. However, they should be discriminated because of their different odor thresholds and health impacts. Herein, a nanopattern chemiresistor composed of aligned CuO-loaded CuFe2O4 nanofibers was prepared via direct-write near-field electrospinning. The CuO/CuFe2O4 sensor with the atomic ratio of [Cu]:[Fe] = 3:4 exhibited extremely high responses to ppm-level H2S and MM compared with other nanopattern sensors with different compositions ([Cu]/[Fe] = 2:4, 4:4, and 0:1). This can be attributed to the gas-accessible morphology of the nanopattern sensor, the formation of a nanoscale p(CuO)-n(CuFe2O4) junction, and the intimate reaction between the discretely loaded CuO nanoparticles and the VSCs. Furthermore, the CuO/CuFe2O4 sensor exhibited high selectivities to H2S and MM at 200 ℃ and 400 ℃, respectively. The selective dual detection of H2S and MM using a single CuO/CuFe2O4 sensor via the simple modulation of the sensing temperature opens a new route for indoor air quality monitoring, ventilation control, halitosis diagnosis, and wine quality monitoring.",

keywords = "Dual-mode gas sensor, Malodor gas sensor, Near-field electrospinning, Oxide nanopattern, Volatile sulfur compound sensor",

author = "Kyeorei Lim and Jo, {Young Moo} and Seonghwan Kim and Yoon, {Ji Wook} and Jeong, {Seong Yong} and Kim, {Jun Sik} and Choi, {Hun Ji} and Youngkyu Cho and Jangpyo Park and Jeong, {Yong Won} and Lee, {Jong Heun}",

note = "Funding Information: This study was supported by SAMSUNG Research , Samsung Electronics Co. Ltd., Republic of Korea and National Research Foundation of Korea grant funded by the Korean Government , Republic of Korea (No. 2021M3H4A3A02086430 ). Funding Information: This study was supported by SAMSUNG Research, Samsung Electronics Co. Ltd. Republic of Korea and National Research Foundation of Korea grant funded by the Korean Government, Republic of Korea (No. 2021M3H4A3A02086430). Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = dec,

day = "1",

doi = "10.1016/j.snb.2021.130665",

language = "English",

volume = "348",

journal = "Sensors and Actuators, B: Chemical",

issn = "0925-4005",

publisher = "Elsevier",

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TY - JOUR

T1 - Selective dual detection of hydrogen sulfide and methyl mercaptan using CuO/CuFe2O4 nanopattern chemiresistors

AU - Lim, Kyeorei

AU - Jo, Young Moo

AU - Kim, Seonghwan

AU - Yoon, Ji Wook

AU - Jeong, Seong Yong

AU - Kim, Jun Sik

AU - Choi, Hun Ji

AU - Cho, Youngkyu

AU - Park, Jangpyo

AU - Jeong, Yong Won

AU - Lee, Jong Heun

N1 - Funding Information: This study was supported by SAMSUNG Research , Samsung Electronics Co. Ltd., Republic of Korea and National Research Foundation of Korea grant funded by the Korean Government , Republic of Korea (No. 2021M3H4A3A02086430 ). Funding Information: This study was supported by SAMSUNG Research, Samsung Electronics Co. Ltd. Republic of Korea and National Research Foundation of Korea grant funded by the Korean Government, Republic of Korea (No. 2021M3H4A3A02086430). Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/12/1

Y1 - 2021/12/1

N2 - Volatile sulfur compounds (VSCs), such as H2S and methyl mercaptan (MM), are malodorous and harmful gases. H2S and MM share analogical origins. However, they should be discriminated because of their different odor thresholds and health impacts. Herein, a nanopattern chemiresistor composed of aligned CuO-loaded CuFe2O4 nanofibers was prepared via direct-write near-field electrospinning. The CuO/CuFe2O4 sensor with the atomic ratio of [Cu]:[Fe] = 3:4 exhibited extremely high responses to ppm-level H2S and MM compared with other nanopattern sensors with different compositions ([Cu]/[Fe] = 2:4, 4:4, and 0:1). This can be attributed to the gas-accessible morphology of the nanopattern sensor, the formation of a nanoscale p(CuO)-n(CuFe2O4) junction, and the intimate reaction between the discretely loaded CuO nanoparticles and the VSCs. Furthermore, the CuO/CuFe2O4 sensor exhibited high selectivities to H2S and MM at 200 ℃ and 400 ℃, respectively. The selective dual detection of H2S and MM using a single CuO/CuFe2O4 sensor via the simple modulation of the sensing temperature opens a new route for indoor air quality monitoring, ventilation control, halitosis diagnosis, and wine quality monitoring.

AB - Volatile sulfur compounds (VSCs), such as H2S and methyl mercaptan (MM), are malodorous and harmful gases. H2S and MM share analogical origins. However, they should be discriminated because of their different odor thresholds and health impacts. Herein, a nanopattern chemiresistor composed of aligned CuO-loaded CuFe2O4 nanofibers was prepared via direct-write near-field electrospinning. The CuO/CuFe2O4 sensor with the atomic ratio of [Cu]:[Fe] = 3:4 exhibited extremely high responses to ppm-level H2S and MM compared with other nanopattern sensors with different compositions ([Cu]/[Fe] = 2:4, 4:4, and 0:1). This can be attributed to the gas-accessible morphology of the nanopattern sensor, the formation of a nanoscale p(CuO)-n(CuFe2O4) junction, and the intimate reaction between the discretely loaded CuO nanoparticles and the VSCs. Furthermore, the CuO/CuFe2O4 sensor exhibited high selectivities to H2S and MM at 200 ℃ and 400 ℃, respectively. The selective dual detection of H2S and MM using a single CuO/CuFe2O4 sensor via the simple modulation of the sensing temperature opens a new route for indoor air quality monitoring, ventilation control, halitosis diagnosis, and wine quality monitoring.

KW - Dual-mode gas sensor

KW - Malodor gas sensor

KW - Near-field electrospinning

KW - Oxide nanopattern

KW - Volatile sulfur compound sensor

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U2 - 10.1016/j.snb.2021.130665

DO - 10.1016/j.snb.2021.130665

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AN - SCOPUS:85114114012

SN - 0925-4005

VL - 348

JO - Sensors and Actuators, B: Chemical

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