Room Temperature Ammonia Gas Sensing Using Polyaniline/Indium Oxide/Onion-Like Carbon Composite

Boipelo N. Mathe; Clinton M. Masemola; John Moma; Zikhona N. Tetana; Ella C. Linganiso

doi:10.1109/SENSORS56945.2023.10324920

Room Temperature Ammonia Gas Sensing Using Polyaniline/Indium Oxide/Onion-Like Carbon Composite

Boipelo N. Mathe, Clinton M. Masemola, John Moma, Zikhona N. Tetana, Ella C. Linganiso^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

The modification of onion-like carbons (OLCs) and conducting polymer composites with semiconductor metal oxides could enhance sensing performance at room temperature. The present study compared two microwave-assisted solution-phase methods for the synthesis of indium oxides. The first method produced indium hydroxide $(\text{In} (\text{OH})_{3})$ followed by its conversion to $\text{In}2O3 through annealing at 400 $^{\circ}{C}}$, and the second method used a one-step method where ethanol was used as a solvent instead of water. A flexible room temperature ammonia $(\text{NH3})$ gas sensor was developed using a sensing layer composed of indium oxide $(\text{In2}O3})$ /OLCs)/polyaniline (PANI) composite at relative humidity of 45%. The results showed that $\text{In2}O3 materials can be successfully applied in room temperature gas sensing and further enhance the sensing response of OLC/PANI composite.

Original language	English
Title of host publication	2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798350303872
DOIs	https://doi.org/10.1109/SENSORS56945.2023.10324920
Publication status	Published - 2023
Externally published	Yes
Event	2023 IEEE SENSORS, SENSORS 2023 - Vienna, Austria Duration: 29 Oct 2023 → 1 Nov 2023

Publication series

Name	Proceedings of IEEE Sensors
ISSN (Print)	1930-0395
ISSN (Electronic)	2168-9229

Conference

Conference	2023 IEEE SENSORS, SENSORS 2023
Country/Territory	Austria
City	Vienna
Period	29/Oct/23 → 01/Nov/23

Keywords

ammonia gas sensing
composites
indium oxide
onion-like carbons
polyaniline

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10.1109/SENSORS56945.2023.10324920

Cite this

Mathe, B. N., Masemola, C. M., Moma, J., Tetana, Z. N., & Linganiso, E. C. (2023). Room Temperature Ammonia Gas Sensing Using Polyaniline/Indium Oxide/Onion-Like Carbon Composite. In 2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings (Proceedings of IEEE Sensors). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SENSORS56945.2023.10324920

@inproceedings{1898cc41a1f84a22b642f897fa2d2131,

title = "Room Temperature Ammonia Gas Sensing Using Polyaniline/Indium Oxide/Onion-Like Carbon Composite",

abstract = "The modification of onion-like carbons (OLCs) and conducting polymer composites with semiconductor metal oxides could enhance sensing performance at room temperature. The present study compared two microwave-assisted solution-phase methods for the synthesis of indium oxides. The first method produced indium hydroxide \$(\textbackslash{}text\{In\} (\textbackslash{}text\{OH\})\_\{3\})\$ followed by its conversion to \$\textbackslash{}text\{In\}2O3 through annealing at 400 \$\textasciicircum{}\{\textbackslash{}circ\}\{C\}\}\$, and the second method used a one-step method where ethanol was used as a solvent instead of water. A flexible room temperature ammonia \$(\textbackslash{}text\{NH3\})\$ gas sensor was developed using a sensing layer composed of indium oxide \$(\textbackslash{}text\{In2\}O3\})\$ /OLCs)/polyaniline (PANI) composite at relative humidity of 45\%. The results showed that \$\textbackslash{}text\{In2\}O3 materials can be successfully applied in room temperature gas sensing and further enhance the sensing response of OLC/PANI composite.",

keywords = "ammonia gas sensing, composites, indium oxide, onion-like carbons, polyaniline",

author = "Mathe, \{Boipelo N.\} and Masemola, \{Clinton M.\} and John Moma and Tetana, \{Zikhona N.\} and Linganiso, \{Ella C.\}",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE SENSORS, SENSORS 2023 ; Conference date: 29-10-2023 Through 01-11-2023",

year = "2023",

doi = "10.1109/SENSORS56945.2023.10324920",

language = "English",

series = "Proceedings of IEEE Sensors",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings",

address = "United States",

}

Mathe, BN, Masemola, CM, Moma, J, Tetana, ZN & Linganiso, EC 2023, Room Temperature Ammonia Gas Sensing Using Polyaniline/Indium Oxide/Onion-Like Carbon Composite. in 2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings. Proceedings of IEEE Sensors, Institute of Electrical and Electronics Engineers Inc., 2023 IEEE SENSORS, SENSORS 2023, Vienna, Austria, 29/Oct/23. https://doi.org/10.1109/SENSORS56945.2023.10324920

Room Temperature Ammonia Gas Sensing Using Polyaniline/Indium Oxide/Onion-Like Carbon Composite. / Mathe, Boipelo N.; Masemola, Clinton M.; Moma, John et al.
2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. (Proceedings of IEEE Sensors).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Room Temperature Ammonia Gas Sensing Using Polyaniline/Indium Oxide/Onion-Like Carbon Composite

AU - Mathe, Boipelo N.

AU - Masemola, Clinton M.

AU - Moma, John

AU - Tetana, Zikhona N.

AU - Linganiso, Ella C.

PY - 2023

Y1 - 2023

N2 - The modification of onion-like carbons (OLCs) and conducting polymer composites with semiconductor metal oxides could enhance sensing performance at room temperature. The present study compared two microwave-assisted solution-phase methods for the synthesis of indium oxides. The first method produced indium hydroxide $(\text{In} (\text{OH})_{3})$ followed by its conversion to $\text{In}2O3 through annealing at 400 $^{\circ}{C}}$, and the second method used a one-step method where ethanol was used as a solvent instead of water. A flexible room temperature ammonia $(\text{NH3})$ gas sensor was developed using a sensing layer composed of indium oxide $(\text{In2}O3})$ /OLCs)/polyaniline (PANI) composite at relative humidity of 45%. The results showed that $\text{In2}O3 materials can be successfully applied in room temperature gas sensing and further enhance the sensing response of OLC/PANI composite.

AB - The modification of onion-like carbons (OLCs) and conducting polymer composites with semiconductor metal oxides could enhance sensing performance at room temperature. The present study compared two microwave-assisted solution-phase methods for the synthesis of indium oxides. The first method produced indium hydroxide $(\text{In} (\text{OH})_{3})$ followed by its conversion to $\text{In}2O3 through annealing at 400 $^{\circ}{C}}$, and the second method used a one-step method where ethanol was used as a solvent instead of water. A flexible room temperature ammonia $(\text{NH3})$ gas sensor was developed using a sensing layer composed of indium oxide $(\text{In2}O3})$ /OLCs)/polyaniline (PANI) composite at relative humidity of 45%. The results showed that $\text{In2}O3 materials can be successfully applied in room temperature gas sensing and further enhance the sensing response of OLC/PANI composite.

KW - ammonia gas sensing

KW - composites

KW - indium oxide

KW - onion-like carbons

KW - polyaniline

UR - https://www.scopus.com/pages/publications/85179757911

U2 - 10.1109/SENSORS56945.2023.10324920

DO - 10.1109/SENSORS56945.2023.10324920

M3 - Conference contribution

AN - SCOPUS:85179757911

T3 - Proceedings of IEEE Sensors

BT - 2023 IEEE SENSORS, SENSORS 2023 - Conference Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2023 IEEE SENSORS, SENSORS 2023

Y2 - 29 October 2023 through 1 November 2023

ER -

Room Temperature Ammonia Gas Sensing Using Polyaniline/Indium Oxide/Onion-Like Carbon Composite

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