| 标题 |
CeO2@Cu2O nanocomposites
CeO2@Cu2O纳米复合材料
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All chemicals were purchased from Sinopharm Chemical Reagent Co., Ltd. and used without further purification. Uniform cubic and octahedral Cu2O nanocrystals were synthesized following Zhang et al.'s recipe.13 To synthesize cubicCu2O nanocrystals, 10 mL of a NaOH aqueous solution (2.0 mol/L) was added dropwise to 100 mL of a CuCl2 aqueous solution (0.01 mol/L). After the mixture was adequately stirred for 0.5 h, 10 mL of an ascorbic acid aqueous solution (0.6 mol/L) was added dropwise to the solution. The mixed solution was adequately stirred for 5 h at 55 ℃. The resulting precipitate was collected by centrifugation, then washed with distilled water and absolute ethanol, and finally dried in vacuum at room temperature for 12 h. To synthesize octahedral Cu2O nanocrystals, 10 mL of a NaOH aqueous solution(2.0 mol/L) was added dropwise to 100 mL of a CuCl2 aqueous solution(0.01 mol/L) containing 4.44 g of poly(vinylpyrrolidone) (PVP, Mw = 30 000) at 55℃. |
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YifanWang
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HeWang
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