Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 최선진 | - |
dc.date.accessioned | 2020-08-07T07:15:16Z | - |
dc.date.available | 2020-08-07T07:15:16Z | - |
dc.date.issued | 2019-08 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, v. 31, no. 15, Page. 5413-5420 | en_US |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.issn | 1520-5002 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acs.chemmater.9b00504 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/152115 | - |
dc.description.abstract | Single-walled carbon nanotubes (SWCNTs) are recognized as versatile materials for the formation of chemiresistive sensors. However, imparting high sensitivity and selectivity to SWCNTs remains a major challenge. Herein, we report a new sensory system that interfaces SWCNTs and catalytic metal nanoparticles (NPs) in a film of a porous ion exchange polymer to produce sensitive and selective sensors. The porous polymer films are based on imidazolium-functionalized triptycene polyether sulfone, and the environment created by this polymer results in the formation of ultrasmall (˂5 nm) Au NPs. The polymer serves to suppress the growth of Au NPs while maintaining gas transport. The size control promotes strong interactions between Au NPs and carbon monoxide (CO), and this composition produces a robust, sensitive, and selective CO chemiresistive sensor. We further demonstrate that the modulation of a gate voltage in chemical field-effect transistor sensing devices enhances the performance by promoting the activity of Au NPs. The sensors display an increase of CO response at room temperature in air under the negative gate voltage. Our results demonstrate that the combination of a porous ion exchange matrix, NPs, and gate voltage-modulated chemiresistors can be synergistically tuned to create sensitive and selective sensors for target analytes. | en_US |
dc.description.sponsorship | This work was supported by the National Science Foundation DMR-1809740. This work was also funded by the Ministry of Trade, Industry & Energy (Korea) under the Industrial Technology Innovation Program (no. 10070075). 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). Y.K. was supported by Abdul Latif Jameel World Water and Food Security Lab (J-WAFS). S.S. was supported by F32 Ruth L. Kirschstein National Research Service Awards. B.Y. was supported by an appointment to the Postgraduate Research Participation Program at CCDC-Soldier Center administered by the Oak Ridge Institute for Science and Education through an interagency agreement between the U.S. Department of Energy and CCDC-Soldier Center. | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | SURFACE-PLASMON RESONANCE | en_US |
dc.subject | GAS SENSORS | en_US |
dc.subject | GOLD NANOPARTICLES | en_US |
dc.subject | FREE-VOLUME | en_US |
dc.subject | ENHANCEMENT | en_US |
dc.subject | ADSORPTION | en_US |
dc.subject | MEMBRANES | en_US |
dc.subject | NANOCRYSTALS | en_US |
dc.subject | MONOXIDE | en_US |
dc.subject | SIZE | en_US |
dc.title | Porous Ion Exchange Polymer Matrix for Ultrasmall Au Nanoparticle-Decorated Carbon Nanotube Chemiresistors | en_US |
dc.type | Article | en_US |
dc.relation.no | 15 | - |
dc.relation.volume | 31 | - |
dc.identifier.doi | 10.1021/acs.chemmater.9b00504 | - |
dc.relation.page | 5413-5420 | - |
dc.relation.journal | CHEMISTRY OF MATERIALS | - |
dc.contributor.googleauthor | Koo, Won-Tae | - |
dc.contributor.googleauthor | Kim, Yoonseob | - |
dc.contributor.googleauthor | Savagatrup, Suchol | - |
dc.contributor.googleauthor | Yoon, Bora | - |
dc.contributor.googleauthor | Jeon, Intak | - |
dc.contributor.googleauthor | Choi, Seon-Jin | - |
dc.contributor.googleauthor | Kim, Il-Doo | - |
dc.contributor.googleauthor | Swager, Timothy M. | - |
dc.relation.code | 2019001093 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | sjchoi27 | - |
dc.identifier.researcherID | O-9898-2015 | - |
dc.identifier.orcid | https://orcid.org/0000-0001-8567-0668 | - |
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