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- W2953896493 abstract "Abstract Metal oxide nanosheets having high mesoporosity, grain size distribution of 5–10 nm, and ultrathin thickness have attracted much attention due to their intriguing properties such as high surface‐to‐volume ratio and superior chemical activities. However, 2D nanostructures tend to restack, inducing a decrease in accessible surface area and a number of pores. To solve this problem, herein, a unique synthetic method of crumpled metal oxide nanosheets using spray pyrolysis of metal ion–coated graphene oxide, followed by heat treatment, is reported. This method is applicable not only to single‐component metal oxides but also to heterogeneous multicomponent metal oxides in which composition can be controlled. Crumpled SnO 2 , ZnO, and Co 3 O 4 as well as SnO 2 /ZnO and SnO 2 /Co 3 O 4 nanosheets with heterogeneous interfaces are successfully synthesized and used as superior gas sensing layers. Because of the abundant reaction sites, well‐developed porosity for high gas accessibility, the formation of heterojunctions, the crumpled SnO 2 /ZnO and SnO 2 /Co 3 O 4 nanosheets exhibit outstanding sensing performance ( R air / R gas = 20.25 toward 5 ppm formaldehyde, and R air / R gas = 14.13 toward 5 ppm acetone, respectively). This study can contribute to the realization of a family of heterogeneous crumpled metal oxide nanosheets that can be applied to various research fields." @default.
- W2953896493 created "2019-07-12" @default.
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- W2953896493 date "2019-06-06" @default.
- W2953896493 modified "2023-10-16" @default.
- W2953896493 title "A General Synthesis of Crumpled Metal Oxide Nanosheets as Superior Chemiresistive Sensing Layers" @default.
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- W2953896493 doi "https://doi.org/10.1002/adfm.201903128" @default.
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