Chinese Journal of Catalysis ›› 2019, Vol. 40 ›› Issue (10): 1488-1493.DOI: 10.1016/S1872-2067(19)63413-3

• Communication • Previous Articles     Next Articles

Aliphatic amines modified CoO nanoparticles for catalytic oxidation of aromatic hydrocarbon with molecular oxygen

Meng Liua,b, Song Shia, Li Zhaoa,b, Chen Chena,c, Jin Gaoa, Jie Xua   

  1. a State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian National Laboratory for Clean Energy, Dalian 116023, Liaoning, China;
    b University of Chinese Academy of Sciences, Beijing 100049, China;
    c School of Materials Science & Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China
  • Received:2019-06-28 Revised:2019-07-19 Online:2019-10-18 Published:2019-08-26
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (21790331, 21603218) and the Strategic Priority Research Program of Chinese Academy of Sciences (XDA21030400, XDB17020300).

Abstract: The surface modification of metal oxides using organic modifiers is a potential strategy for enhancing their catalytic performances. In this study, a hydrophobic surface amine-modified CoO catalyst with a water contact angle of 143° was fabricated. The catalyst was characterized by XRD, TGA, FT-IR, HR-TEM, and XPS. The results showed that the fabricated catalyst performed better than the hydrophilic commercial CoO nanoparticle in the process of aromatic hydrocarbon oxidation. After the amines modification, commercial CoO also became hydrophobic and improved conversion of ethylbenzene was achieved. The surface modification of CoO with amines induced the hydrophobicity property, which could serve as a reference for the design of other hydrophobic catalysts.

Key words: Hydrocarbon oxidation, Hydrophobic modification, Amines coating, Cobalt oxide, Surface modification