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還原氧化石墨烯應用于多相催化,芳香硝基化合物氫化作用 已有1人參與
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本文制備了乙二醇還原的氧化石墨烯做為載體,Pt/RGO-EG催化劑,并與水合肼還原的石墨烯載體,活性炭載體,碳納米管載體的催化劑進行性能對比。得出Pt/RGO-EG催化劑低耗能,環(huán)境友好,可高效產(chǎn)出芳香族的胺類。 本文提到關于石墨烯-金屬的研究主要集中在納米電子傳感器,電極,電池,超級電容器。只有較少的研究石墨烯做為多相催化反應的載體。 乙二醇還原氧化石墨烯做為載體,不但提高了催化劑的活性,而且提高了芳香硝基化合物加氫的產(chǎn)率。這種制備方法簡單易操作,可回收利用,相比CNTs做為載體更廉價。氧化石墨烯和氧化石墨烯復合物將來在多相催化中有很大的利用潛力。 題目:Platinum supported on reduced graphene oxide as a catalyst for hydrogenation of nitroarenes 摘要:Reduced graphene oxide (RGO)-supported platinum (Pt) catalyst was prepared by simple ethylene glycol (EG) reduction and used for hydrogenation of nitroarenes. Characteriza-tions showed that EG as a reductant exhibited more advantages than the widely used hydrazine hydrate to fabricate monodispersed, small sized Pt nanoparticles on the surface of RGO. The yield of aniline over the Pt/RGO-EG catalyst reached 70.2 mol-AN/(mol-Pt min) at0oC, which is 12.5 and 19.5 times higher than that of multi-walled carbon nanotube- and active carbon-supported Pt catalysts, respectively. When the reaction temperature was increased to 20o C, the catalytic activity of Pt/RGO-EG jumped to 1138.3 mol-AN/(mol-Ptmin), and it was also extremely active for the hydrogenation of a series of nitroarenes. The unique catalytic activity of Pt/RGO-EG is not only related to the well dispersed Pt clusters on the RGO sheets but also the well dispersion of Pt/RGO-EG in the reaction mixture. |
石墨烯知識匯總 | 石墨烯+二氧化鈦 | 氯苯 催化 |

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今天看見這篇文獻入選: The most downloaded articles from SciVerse ScienceDirect in the last 90 days. http://www.journals.elsevier.com/carbon/most-read-articles/ |
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