Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 윤홍석 | - |
dc.date.accessioned | 2022-04-12T02:26:17Z | - |
dc.date.available | 2022-04-12T02:26:17Z | - |
dc.date.issued | 2020-08 | - |
dc.identifier.citation | ACS NANO, v. 14, no. 8, page. 9652-9661 | en_US |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.issn | 1936-086X | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsnano.0c00821 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/169920 | - |
dc.description.abstract | For rapid hydrogen gas (H-2) sensing, we propose the facile synthesis of the hollow structure of Pt-decorated molybdenum disulfide (h-MoS2/Pt) using ultrathin (mono- or few-layer) two-dimensional nanosheets. The controlled amphiphilic nature of MoS2 surface produces ultrathin MoS, NS-covered polystyrene particles via one-step Pickering emulsification. The incorporation of Pt nanoparticles (NPs) on the MoS2, followed by pyrolysis, generates the highly porous h-MoS2/Pt. This hollow hybrid structure produces sufficiently permeable pathways for H-2 and maximizes the active sites of MoS2, while the Pt NPs on the hollow MoS2 induce catalytic H-2 spillover during H-2 sensing. The h-MoS2/Pt-based chemiresistors show sensitive H-2 sensing performances with fast sensing speed (response, 8.1 s for 1% of H-2 and 2.7 s for 4%; and recovery, 16.0 s for both 1% and 4% H-2 at room temperature in the air). These results mark the highest H-2 sensing speed among 2D material-based H-2 sensors operated at room temperature in air. Our fabrication method of h-MoS2/Pt structure through Pickering emulsion provides a versatile platform applicable to various 2D material-based hollow structures and facilitates their use in other applications involving surface reactions. | en_US |
dc.description.sponsorship | This work is supported by National Research Foundation of Korea (NRF) Grant of the Korean Government (Grant Nos. 2016R1A5A1009926, 2017M3A7B8065584, and 2020R1A4A1018516). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | hydrogen sensors | en_US |
dc.subject | hollow MoS2 structure | en_US |
dc.subject | Pickering emulsion | en_US |
dc.subject | spillover | en_US |
dc.subject | rapid hydrogen sensing | en_US |
dc.title | Hydrogen Sensors Based on MoS2 Hollow Architectures Assembled by Pickering Emulsion | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1021/acsnano.0c00821 | - |
dc.relation.journal | ACS NANO | - |
dc.contributor.googleauthor | Park, Chan Ho | - |
dc.contributor.googleauthor | Koo, Won-Tae | - |
dc.contributor.googleauthor | Lee, Young Jun | - |
dc.contributor.googleauthor | Kim, Yoon Hwa | - |
dc.contributor.googleauthor | Lee, Jiyoung | - |
dc.contributor.googleauthor | Jang, Ji-Soo | - |
dc.contributor.googleauthor | Yun, Hongseok | - |
dc.contributor.googleauthor | Kim, Il-Doo | - |
dc.contributor.googleauthor | Kim, Bumjoon J. | - |
dc.relation.code | 2020051328 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | yunhs | - |
dc.identifier.researcherID | AAC-8146-2022 | - |
dc.identifier.orcid | http://orcid.org/0000-0003-0497-6185 | - |
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