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dc.contributor.author최선진-
dc.date.accessioned2019-08-26T01:41:46Z-
dc.date.available2019-08-26T01:41:46Z-
dc.date.issued2019-03-
dc.identifier.citationACS APPLIED MATERIALS & INTERFACES , v.11 , NO.10 , Page. 10208-10217en_US
dc.identifier.issn1944-8244-
dc.identifier.issn1944-8252-
dc.identifier.urihttps://pubs.acs.org/doi/10.1021/acsami.8b22015-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/109910-
dc.description.abstractThe development of freestanding fiber-type chemiresistors, having high integration ability with various portable electronics including smart clothing systems, is highly demanding for the next-generation wearable sensing platforms. However, critical challenges stemming from the irreversible chemical sensing kinetics and weak reliability of the free-standing fiber-type chemiresistor hinder their practical use. In this work, for the first time, we report on the potential suitability of the freestanding and ultraporous reduced graphene oxide fiber functionalized with WO3 nanorods (porous WO3 NRs-RGO composite fiber) as a sensitive nitrogen dioxide (NO2) detector. By employing a tunicate cellulose nanofiber (TCNF), which is a unique animal-type cellulose, the numerous mesopores are formed on a wet-spun TCNF-GO composite fiber, unlike a bare GO fiber with dense surface structure. More interestingly, due to the superior wettability of TCNF, the aqueous tungsten precursor is uniformly adsorbed on an ultraporous TCNF-GO fiber, and subsequent heat treatment results in the thermal reduction of a TCNF-GO fiber and hierarchical growth of WO3 NRs perpendicular to the porous RGO fiber (porous WO3 NRs-RGO fiber). The freestanding porous WO3 NRs-RGO fiber shows a notable response to 1 ppm NO2. Furthermore, we successfully demonstrate reversible NO2 sensing characteristics of the porous WO3 NRs-RGO fiber, which is integrated on a wrist-type wearable sensing device.en_US
dc.description.sponsorshipThis work was supported by the National Research Foundation (NRF) of Korea Grant funded by the Ministry of Science and ICT (NRF-2015R1A2A1A16074901, 2016M3A7B4905619). This work was also supported by the Wearable Platform Materials Technology Center (WMC) funded by the National Research Foundation of Korea (NRF) Grant of the Korean Government (MSIP) (No. 2016R1A5A1009926); the Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT and Future Planning (2016M3A7B4905609); and the National Research Foundation of Korea (NRF), grant no. 2014R1A4A1003712 (BRL Program).en_US
dc.language.isoenen_US
dc.publisherAMER CHEMICAL SOCen_US
dc.subjectporous graphene fiberen_US
dc.subjectliquid crystalen_US
dc.subjecttunicateen_US
dc.subjectnitrogen dioxideen_US
dc.subjectgas sensoren_US
dc.titleHeterogeneous Metal Oxide−Graphene Thorn-Bush Single Fiber as a Freestanding Chemiresistoren_US
dc.typeArticleen_US
dc.identifier.doi10.1021/acsami.8b22015-
dc.relation.journalACS APPLIED MATERIALS & INTERFACES-
dc.contributor.googleauthorJang, Ji-Soo-
dc.contributor.googleauthorYu, Hayoung-
dc.contributor.googleauthorChoi, Seon-Jin-
dc.contributor.googleauthorKoo, Won-Tae-
dc.contributor.googleauthorLee, Jiyoung-
dc.contributor.googleauthorKim, Dong-Ha-
dc.contributor.googleauthorKang, Joon-Young-
dc.contributor.googleauthorJeong, Yong Jin-
dc.contributor.googleauthorJeong, Hyeonsu-
dc.contributor.googleauthorKim, Il-Doo-
dc.relation.code2019002549-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MATERIALS SCIENCE AND ENGINEERING-
dc.identifier.pidjjangcsj27-
dc.identifier.pidsjchoi27-
dc.identifier.orcidhttp://orcid.org/0000-0001-8567-0668-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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