Robust and easily retrievable Pd/Ti3C2Tx■graphene hydrogels for efficient catalytic hydrogenation of nitroaromatic compounds |
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作者姓名: | Xiuqiang Xie Zhenjun Wu Nan Zhang |
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作者单位: | College of Materials Science and Engineering;College of Chemistry and Chemical Engineering |
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基金项目: | support from the National Natural Science Foundation of China(Nos.51802040,51977071 and 21802020);Key Laboratory of Coal to Ethylene Glycol and Its Related Technology,Chinese Academy of Sciences(No.201901);Natural Science Foundation of Hunan Prvoince(No.2017JJ2040);the Fundamental Research Funds for the Central Universities。 |
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摘 要: | Ti3C2Tx has been emerging as an attractive platform to prepare composite catalysts,and their assembly into integrated catalytic mate rials repre sents a key step forward toward practical applications.Howeve r,the swelling behavior of Ti3C2Tx leads to significant structure change,which challenges the stability of Ti3C2Tx-based integrated functional materials for catalytic applications.Here we report a facile synthesis of Pd/Ti3C2Tx■graphene hydrogels in which Pd/Ti3C2Tx are spatially encapsulated in the 3 D porous graphene framework.The porous interconnected structure not only affords efficient mass transfer and desirable functional accessibility to catalytic active sites,but also effectively buffers the swelling behavior of Ti3C2Tx.When applied for catalytic hydrogenation of nitroaromatic compounds,the mechanically robust Pd/Ti3C2Tx■graphene hydrogels exhibit efficient activities,easy separability,and good cyclability.This work is expected to promote the application of Ti3C2Tx-based functional materials for practical applications involving interactions with salt solutions,such as supercapacitors,catalysis,and water purification.
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关 键 词: | Ti3C2Tx HYDROGELS Robust structure Convenient recyclability Nitroaromatic compounds hydrogenation |
收稿时间: | 2019-09-14 |
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