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- W4303649286 abstract "Specific surface area and oxygen vacancies are considered to be essential factors to enhance the gas sensitivity properties of sensing materials. Herein, we first synthesized Co/Zn-MOF and Co-MOF precursors, then formed 1-CoOOH and 2-CoOOH nanosheets by etching the precursors with sodium hydroxide solution. The composition and morphology of 1-CoOOH and 2-CoOOH are characterized by XRD, FT-IR, SEM, and XPS. The results of gas-sensitive tests show that the responses of 1-CoOOH and 2-CoOOH are 14.28 and 3.87 for 100 ppm NO x at room temperature and 21.27 and 8.69 for 100 ppm ethanol at 150 ℃, respectively. This indicates a better response of 1-CoOOH to 100 ppm NO x , and the materials are used to detect NO x and ethanol by controlling the working temperature. Compared with 2-CoOOH, the higher specific surface area and the abundance of oxygen vacancies of 1-CoOOH promote enhanced gas sensing properties. • Metal-organic framework (MOF) derived CoOOH nanosheets were prepared by etching with NaOH solution. • The CoOOH sensor can detect NO x and ethanol at different temperatures. • The specific surface area and oxygen vacancy can improve the gas-sensitive performance. • Description of NO x and ethanol sensing mechanism in CoOOH nanosheet." @default.
- W4303649286 created "2022-10-08" @default.
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- W4303649286 date "2022-12-01" @default.
- W4303649286 modified "2023-09-30" @default.
- W4303649286 title "MOF-derived CoOOH nanosheets and their temperature-dependent selectivity for NOx and ethanol" @default.
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- W4303649286 doi "https://doi.org/10.1016/j.colsurfa.2022.130314" @default.
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