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Abstract
As a member of 2D family, amorphous 2D nanosheets have received increasing attention due to their unique properties that are distinct from crystalline 2D nanosheets. However, compared with the vast library of crystalline 2D nanosheets, amorphous 2D nanosheets are still infancy due to the lack of an efficient synthetic approach. Here, we present a strategy that yields a library of 10 distinct amorphous 2D metal oxides/oxyhydroxides using solid-state surfactant crystals. A key feature of this process is a stepwise reaction using solid surfactant; the solid-state surfactant crystals have metal ions arranged in the interlayer space, and hydrolysis of the metal ions leads to the formation of isolated clusters in the surfactant crystals via limited condensation reactions. Immersing the surfactant crystals in formamide promotes nanosheet formation through the self-assembly of clusters by templating the morphologies of the crystals generated from surfactants crystals. Our approach opens a flatland in amorphous 2D world.
The authors developed a method for creating amorphous 2D nanosheets using solid-state surfactant crystals. This strategy results in a library of 10 distinct amorphous 2D metal oxides/oxyhydroxides through stepwise hydrolysis and assembly processes.
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1 Nagoya University, Department of Materials Chemistry & Institute of Materials and Systems for Sustainability (IMaSS), Nagoya, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X); Japan Science and Technology Agency (JST), Precursory Research for Embryonic Science and Technology (PRESTO), Saitama, Japan (GRID:grid.419082.6) (ISNI:0000 0001 2285 0987)
2 Nagoya University, Department of Materials Chemistry & Institute of Materials and Systems for Sustainability (IMaSS), Nagoya, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X)
3 Nagoya University, Department of Materials Chemistry & Institute of Materials and Systems for Sustainability (IMaSS), Nagoya, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X); Nagoya University, Research Institute for Quantum and Chemical Innovation, Institutes of Innovation for Future Society, Nagoya, Japan (GRID:grid.27476.30) (ISNI:0000 0001 0943 978X)