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

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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.

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

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Publication details

The article was received on 22 Jul 2019, accepted on 24 Sep 2019 and first published on 24 Sep 2019


Article type: Communication
DOI: 10.1039/C9MH01142K
Mater. Horiz., 2020, Advance Article

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

    Y. Li, Y. Liu, J. Li, D. Xiong, X. Chen, M. Liu, Z. Zhong, V. Malgras, Y. Bando, Y. Yamauchi and J. Xu, Mater. Horiz., 2020, Advance Article , DOI: 10.1039/C9MH01142K

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