Acetone Gas Sensor Based on SWCNT/Polypyrrole/Phenyllactic Acid Nanocomposite with High Sensitivity and Humidity Stability
We synthesized core-shell-shaped nanocomposites composed of a single-walled carbon nanotube (SWCNT) and heptadecafluorooctanesulfonic acid-doped polypyrrole (C8F-doped-PPy)/phenyllatic acid (PLA), i.e., C8F-doped-PPy/PLA@SWCNT, for detecting acetone gas with high sensitivity and humidity stability....
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-05-01
|
| Series: | Biosensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-6374/12/5/354 |
| _version_ | 1797501194192551936 |
|---|---|
| author | Jun-Ho Byeon Ji-Sun Kim Hyo-Kyung Kang Sungmin Kang Jin-Yeol Kim |
| author_facet | Jun-Ho Byeon Ji-Sun Kim Hyo-Kyung Kang Sungmin Kang Jin-Yeol Kim |
| author_sort | Jun-Ho Byeon |
| collection | DOAJ |
| description | We synthesized core-shell-shaped nanocomposites composed of a single-walled carbon nanotube (SWCNT) and heptadecafluorooctanesulfonic acid-doped polypyrrole (C8F-doped-PPy)/phenyllatic acid (PLA), i.e., C8F-doped-PPy/PLA@SWCNT, for detecting acetone gas with high sensitivity and humidity stability. The obtained nanocomposites have the structural features of a sensing material as a C8F-doped-PPy layer surrounding a single-stranded SWCNT, and a PLA layer on the outer surface of the PPy as a specific sensing layer for acetone. PLA was chemically combined with the positively charged PPy backbone and provided the ability to reliably detect acetone gas at concentrations as low as 50 ppb even at 25 °C, which is required for medical diagnoses via human breath analysis. When C8F was contained in the pyrrole monomer in a ratio of 0.1 mol, it was able to stably detect an effective signal in a relative humidity (RH) of 0–80% range. |
| first_indexed | 2024-03-10T03:14:52Z |
| format | Article |
| id | doaj.art-aea33f0ad3c14a10b521dbc2e00edede |
| institution | Directory Open Access Journal |
| issn | 2079-6374 |
| language | English |
| last_indexed | 2024-03-10T03:14:52Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biosensors |
| spelling | doaj.art-aea33f0ad3c14a10b521dbc2e00edede2023-11-23T10:16:19ZengMDPI AGBiosensors2079-63742022-05-0112535410.3390/bios12050354Acetone Gas Sensor Based on SWCNT/Polypyrrole/Phenyllactic Acid Nanocomposite with High Sensitivity and Humidity StabilityJun-Ho Byeon0Ji-Sun Kim1Hyo-Kyung Kang2Sungmin Kang3Jin-Yeol Kim4School of Advanced Materials Engineering, Kookmin University, Seoul 136-702, KoreaSchool of Advanced Materials Engineering, Kookmin University, Seoul 136-702, KoreaSchool of Advanced Materials Engineering, Kookmin University, Seoul 136-702, KoreaHead Office Laboratory, LG Japan Lab Inc., Tokyo 140-0002, JapanSchool of Advanced Materials Engineering, Kookmin University, Seoul 136-702, KoreaWe synthesized core-shell-shaped nanocomposites composed of a single-walled carbon nanotube (SWCNT) and heptadecafluorooctanesulfonic acid-doped polypyrrole (C8F-doped-PPy)/phenyllatic acid (PLA), i.e., C8F-doped-PPy/PLA@SWCNT, for detecting acetone gas with high sensitivity and humidity stability. The obtained nanocomposites have the structural features of a sensing material as a C8F-doped-PPy layer surrounding a single-stranded SWCNT, and a PLA layer on the outer surface of the PPy as a specific sensing layer for acetone. PLA was chemically combined with the positively charged PPy backbone and provided the ability to reliably detect acetone gas at concentrations as low as 50 ppb even at 25 °C, which is required for medical diagnoses via human breath analysis. When C8F was contained in the pyrrole monomer in a ratio of 0.1 mol, it was able to stably detect an effective signal in a relative humidity (RH) of 0–80% range.https://www.mdpi.com/2079-6374/12/5/354acetone gas sensorpolypyrrole-SWCNT compositehigh sensitivityroom temperaturemoisture resistance |
| spellingShingle | Jun-Ho Byeon Ji-Sun Kim Hyo-Kyung Kang Sungmin Kang Jin-Yeol Kim Acetone Gas Sensor Based on SWCNT/Polypyrrole/Phenyllactic Acid Nanocomposite with High Sensitivity and Humidity Stability Biosensors acetone gas sensor polypyrrole-SWCNT composite high sensitivity room temperature moisture resistance |
| title | Acetone Gas Sensor Based on SWCNT/Polypyrrole/Phenyllactic Acid Nanocomposite with High Sensitivity and Humidity Stability |
| title_full | Acetone Gas Sensor Based on SWCNT/Polypyrrole/Phenyllactic Acid Nanocomposite with High Sensitivity and Humidity Stability |
| title_fullStr | Acetone Gas Sensor Based on SWCNT/Polypyrrole/Phenyllactic Acid Nanocomposite with High Sensitivity and Humidity Stability |
| title_full_unstemmed | Acetone Gas Sensor Based on SWCNT/Polypyrrole/Phenyllactic Acid Nanocomposite with High Sensitivity and Humidity Stability |
| title_short | Acetone Gas Sensor Based on SWCNT/Polypyrrole/Phenyllactic Acid Nanocomposite with High Sensitivity and Humidity Stability |
| title_sort | acetone gas sensor based on swcnt polypyrrole phenyllactic acid nanocomposite with high sensitivity and humidity stability |
| topic | acetone gas sensor polypyrrole-SWCNT composite high sensitivity room temperature moisture resistance |
| url | https://www.mdpi.com/2079-6374/12/5/354 |
| work_keys_str_mv | AT junhobyeon acetonegassensorbasedonswcntpolypyrrolephenyllacticacidnanocompositewithhighsensitivityandhumiditystability AT jisunkim acetonegassensorbasedonswcntpolypyrrolephenyllacticacidnanocompositewithhighsensitivityandhumiditystability AT hyokyungkang acetonegassensorbasedonswcntpolypyrrolephenyllacticacidnanocompositewithhighsensitivityandhumiditystability AT sungminkang acetonegassensorbasedonswcntpolypyrrolephenyllacticacidnanocompositewithhighsensitivityandhumiditystability AT jinyeolkim acetonegassensorbasedonswcntpolypyrrolephenyllacticacidnanocompositewithhighsensitivityandhumiditystability |