Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (6): 1801.doi: 10.7503/cjcu20210046

• Physical Chemistry • Previous Articles     Next Articles

Facile Synthesis of Hollow Nickel Submicrospheres with Hierarchical Nano-structure and Its Catalytic Hydrogenation of Phenol

FAN Ye, HAN Huihui, FANG Yun(), FENG Ruiqin, XIA Yongmei   

  1. Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,China
  • Received:2021-01-20 Online:2021-06-10 Published:2021-06-08
  • Contact: FANG Yun E-mail:yunfang@126.com
  • Supported by:
    the National Natural Science Foundation of China(21606107)

Abstract:

The nickel nanomaterials were prepared using a facile one-pot method by reducing Ni2+ with hydrazine hydrate in aqueous solution of sodium dodecyl sulfate(SDS) and polyvinylpyrrolidone(PVP) at 65 ℃. The surface morphology and internal structure of the nickel nanomaterials were characterized. The results showed that the nickel nanomaterials were hollow submicrospheres with a large number of mesopores in the thicker shell layer, and the surface of the submicrospheres distributed with pine-needle-like superimposed morphology. The overall morphology of the hollow nickel submicrospheres with hierarchical nano-structure were like closed bird’s nest. The selective hydrogenation reaction of phenol was catalyzed by the hollow nickel submicrospheres at 150 ℃ for 4 h. The phenol conversion and cyclohexanol selectivity were up to 100% and 90%, respectively. In addition, the catalytic performance of the hollow nickel submicrospheres nearly did not decrease and the surface of the catalyst was not oxidized after 20 cycles exposed in the air. Therefore, the hollow nickel submicrospheres with hierarchical nano-structure have excellent catalytic activity and excellent cycle stability, and have the potential as a good candidate catalyst for packed bed or fluidized bed.

Key words: Hollow submicrospheres, Nickel, Facile synthesis, Hierarchical nano-structure, Catalytic hydrogenation

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