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- W3046375188 abstract "Forrapid hydrogen gas (H2) sensing, we propose thefacile synthesis of the hollow structure of Pt-decorated molybdenumdisulfide (h-MoS2/Pt) using ultrathin (mono- or few-layer)two-dimensional nanosheets. The controlled amphiphilic nature of MoS2 surface produces ultrathin MoS2 NS-covered polystyreneparticles 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 permeablepathways for H2 and maximizes the active sites of MoS2, while the Pt NPs on the hollow MoS2 induce catalyticH2 spillover during H2 sensing. The h-MoS2/Pt-based chemiresistors show sensitive H2 sensingperformances with fast sensing speed (response, 8.1 s for 1% of H2 and 2.7 s for 4%; and recovery, 16.0 s for both 1% and 4%H2 at room temperature in the air). These results markthe highest H2 sensing speed among 2D material-based H2 sensors operated at room temperature in air. Our fabricationmethod of h-MoS2/Pt structure through Pickering emulsionprovides a versatile platform applicable to various 2D material-basedhollow structures and facilitates their use in other applicationsinvolving surface reactions." @default.
- W3046375188 created "2020-08-07" @default.
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- W3046375188 date "2020-07-23" @default.
- W3046375188 modified "2023-10-17" @default.
- W3046375188 title "HydrogenSensors Based on MoS2 Hollow ArchitecturesAssembled by Pickering Emulsion" @default.
- W3046375188 doi "https://doi.org/10.1021/acsnano.0c00821.s001" @default.
- W3046375188 hasPublicationYear "2020" @default.
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