| Title: | Flexible Graphite/PPG Hybrid Composite-Based Resistive Sensor for Sensing Organic Compounds |
| Author(s): | Kim DH; Lee YS; Park WK; Yoo JS; Shim C; Hong YJ; Kang BK; Yoon DH; Yang WS; |
| Address: | "Nano Materials and Components Research Center, Korea Electronics Technology Institute, 25, Saenari-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 13509, Korea. School of Advanced Materials Science and Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi-do 16419, Korea. Nano Material Division, Cheorwon Plasma Research Institute, Cheorwon, Gangwon-do 24047, Korea. Division of Advanced Materials Engineering, Kongju National University, 1223-24, Cheonan-daero, Seobuk-gu, Cheonan-si, Chungcheongnam-do 31080, Korea. Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Korea" |
| ISSN/ISBN: | 1424-8220 (Electronic) 1424-8220 (Linking) |
| Abstract: | "Our objective in this study was to investigate a sensor for volatile organic compounds based on a graphite (G)/polypropylene glycol (PPG) hybrid composite (HC) for sensing hybrid elements. The G/PPG HC sensor films for organic-matter detection were successfully fabricated on polyethylene terephthalate (PET) film with a simple blade-coating method. The sensing paste based on G/PPG (1:2) HC showed good dispersibility and stability. In addition, G/PPG HC sensor films with organic compounds showed different thickness changes as a function of the G/PPG ratio because of the swelling effect of the polymer. The observed differences in resistance of the G/PPG HC films corresponded to those of common organic compounds, suggesting that the disconnection of graphite caused by the swollen PPG matrix caused explosive resistance change. Moreover, we evaluated the sensitivity of typical hydrocarbon materials, such as benzene and toluene, in the sensor film as well as petroleum materials without moisture-induced malfunctions. This study could provoke knowledge about superior sensing with cost-effective and easily scalable materials using polymer/graphite composite-based sensors to improve the sensitivity, selectivity, and stability of chemical sensor applications" |
| Keywords: | carbon material hydrocarbon sensor polypropylene glycol swelling; |
| Notes: | "PubMed-not-MEDLINEKim, Do Hun Lee, Yang Soo Park, Won Kyu Yoo, Jin Sun Shim, Changup Hong, Young Joon Kang, Bong Kyun Yoon, Dae Ho Yang, Woo Seok eng 10067449/the Ministry of Trade, Industry and Energy through Technology Innovation Program/ S2561932/the 'World Class 300 Project (R&D)/ Switzerland 2020/05/10 Sensors (Basel). 2020 May 6; 20(9):2651. doi: 10.3390/s20092651" |
