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A centimeter scale self-standing two-dimensional ultra-thin mesoporous platinum nanosheet

Journal Article


Abstract


  • Here, we report the unprecedented synthesis of centimeter scale self-standing mesoporous Pt nanosheets. Due to solvent evaporation, spherical micelles made of poly(styrene-b-2-vinyl pyridine-b-ethylene oxide) (PS-P2VP-PEO) self-assemble in a well-ordered fashion, over the entire surface of the substrate, and confined within an ultra-thin layer. Metal deposition around the micelles is carried out through a two-step reduction process using two different reducing agents. After removing the micelles and substrate, a continuous self-standing ultra-thin mesoporous Pt nanosheet can be obtained (���15 nm thick). Due to several unique porous structural features, including abundant active sites, high surface area, and long-range orthogonally ordered pores, the obtained material is expected to deliver high performance in a wide range of electrochemical applications. This novel synthetic strategy opens a new route to design and control novel 2D mesoporous metal nanosheets with various functions.

Publication Date


  • 2020

Citation


  • Li, Y., Liu, Y., Li, J., Xiong, D., Chen, X., Liu, M., . . . Xu, J. (2020). A centimeter scale self-standing two-dimensional ultra-thin mesoporous platinum nanosheet. Materials Horizons, 7(2), 489-494. doi:10.1039/c9mh01142k

Scopus Eid


  • 2-s2.0-85079485574

Start Page


  • 489

End Page


  • 494

Volume


  • 7

Issue


  • 2

Place Of Publication


Abstract


  • Here, we report the unprecedented synthesis of centimeter scale self-standing mesoporous Pt nanosheets. Due to solvent evaporation, spherical micelles made of poly(styrene-b-2-vinyl pyridine-b-ethylene oxide) (PS-P2VP-PEO) self-assemble in a well-ordered fashion, over the entire surface of the substrate, and confined within an ultra-thin layer. Metal deposition around the micelles is carried out through a two-step reduction process using two different reducing agents. After removing the micelles and substrate, a continuous self-standing ultra-thin mesoporous Pt nanosheet can be obtained (���15 nm thick). Due to several unique porous structural features, including abundant active sites, high surface area, and long-range orthogonally ordered pores, the obtained material is expected to deliver high performance in a wide range of electrochemical applications. This novel synthetic strategy opens a new route to design and control novel 2D mesoporous metal nanosheets with various functions.

Publication Date


  • 2020

Citation


  • Li, Y., Liu, Y., Li, J., Xiong, D., Chen, X., Liu, M., . . . Xu, J. (2020). A centimeter scale self-standing two-dimensional ultra-thin mesoporous platinum nanosheet. Materials Horizons, 7(2), 489-494. doi:10.1039/c9mh01142k

Scopus Eid


  • 2-s2.0-85079485574

Start Page


  • 489

End Page


  • 494

Volume


  • 7

Issue


  • 2

Place Of Publication