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Synthesis of CuCr2O4/Reduced Graphene Oxide Composite: A Green Catalyst for Selective Oxidation of Cyclohexane to Cyclohexanone with Hydrogen Peroxide
ChemistrySelect ( IF 1.9 ) Pub Date : 2017-11-29 , DOI: 10.1002/slct.201702318 Zixiao Chen 1 , Bo Tang 1 , Jing Shen 1 , Qun Chen 1 , Guangyu He 1 , Haiqun Chen 1
ChemistrySelect ( IF 1.9 ) Pub Date : 2017-11-29 , DOI: 10.1002/slct.201702318 Zixiao Chen 1 , Bo Tang 1 , Jing Shen 1 , Qun Chen 1 , Guangyu He 1 , Haiqun Chen 1
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CuCr2O4/reduced graphene oxide (rGO) composites were prepared using a two‐step method. Detailed characterizations of the material were performed with X‐ray diffraction (XRD), Zeta potential, Fourier transform infrared (FT‐IR), transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS), Raman spectra, and Thermal Gravimetric Analyzer (TGA). The characterizations showed that the ∼50 nm CuCr2O4 nanoparticles were successfully supported on the rGO via static electricity. The TGA results showed that the quality of rGO in composites was around 10%. The experimental results showed that the catalysts obtained high catalytic activity for the selective oxidation of cyclohexane to cyclohexanone with H2O2. The catalyst obtained a conversion rate of cyclohexane of up to 95.8%. 78.1% cyclohexanone selectivity was obtained. The catalyst had good cycling stability after 5 reuses. Compared to the other composite materials, the catalyst had high catalytic activity for the selective oxidation of cyclohexane to cyclohexanone.
中文翻译：
CuCr2O4 /还原石墨烯复合材料的合成：绿色催化剂，用于过氧化氢将环己烷选择性氧化为环己酮
采用两步法制备了CuCr 2 O 4 /还原氧化石墨烯（rGO）复合材料。通过X射线衍射（XRD），Zeta电位，傅立叶变换红外（FT-IR），透射电子显微镜（TEM），X射线光电子能谱（XPS），拉曼光谱和热重分析法对材料进行了详细的表征分析仪（TGA）。表征表明，约50 nm的CuCr 2 O 4纳米颗粒通过静电成功地支撑在rGO上。TGA结果表明，复合材料中rGO的质量约为10％。实验结果表明，该催化剂对H 2选择性氧化环己烷生成环己酮具有较高的催化活性。O 2。该催化剂获得的环己烷转化率高达95.8％。获得了78.1％的环己酮选择性。5次重复使用后，催化剂具有良好的循环稳定性。与其他复合材料相比，该催化剂具有较高的催化活性，可将环己烷选择性氧化为环己酮。
更新日期：2017-11-29
中文翻译：
CuCr2O4 /还原石墨烯复合材料的合成：绿色催化剂，用于过氧化氢将环己烷选择性氧化为环己酮
采用两步法制备了CuCr 2 O 4 /还原氧化石墨烯（rGO）复合材料。通过X射线衍射（XRD），Zeta电位，傅立叶变换红外（FT-IR），透射电子显微镜（TEM），X射线光电子能谱（XPS），拉曼光谱和热重分析法对材料进行了详细的表征分析仪（TGA）。表征表明，约50 nm的CuCr 2 O 4纳米颗粒通过静电成功地支撑在rGO上。TGA结果表明，复合材料中rGO的质量约为10％。实验结果表明，该催化剂对H 2选择性氧化环己烷生成环己酮具有较高的催化活性。O 2。该催化剂获得的环己烷转化率高达95.8％。获得了78.1％的环己酮选择性。5次重复使用后，催化剂具有良好的循环稳定性。与其他复合材料相比，该催化剂具有较高的催化活性，可将环己烷选择性氧化为环己酮。
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