A novel core-shell structural magnetic nanocatalyst involving carbon coatings on magnetic Fe₃O₄ nanoparticle (Fe₃O₄@C) for immobilizing polyoxometalate hexamolybdate (HM), were prepared by a facile chemical approach. The catalyst was identified by various techniques such as FE-SEM, EDX, VSM, XRD, TG, TEM, and FT-IR spectroscopy. This nanocatalyst were applied in the oxidation of alcohols using tert-butyl hydroperoxide, an oxidant in acetonitrile. The oxidation product was obtained at a high yield. The new nanocatalyst showed good recoverability without any significant loss of activity within successive runs.

中文翻译：

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将六钼酸盐固定在碳包覆的 Fe3O4 纳米颗粒上：一种具有高活性醇氧化的新型催化剂

通过简便的化学方法制备了一种新型核壳结构磁性纳米催化剂，其涉及磁性 Fe ₃ O ₄纳米颗粒 (Fe ₃ O ₄ @C)上的碳涂层，用于固定多金属氧酸盐六钼酸盐 (HM)。通过FE-SEM、EDX、VSM、XRD、TG、TEM和FT-IR光谱等多种技术对催化剂进行了鉴定。这种纳米催化剂用于使用叔丁基氢过氧化物（乙腈中的氧化剂）氧化醇。以高产率获得氧化产物。新的纳米催化剂表现出良好的可回收性，在连续运行中没有任何显着的活性损失。