CuCo2O4 spinel nanoparticles were successfully preparedvia a sol–gel method, which were firstly employed in catalytic reduction of p-nitrophenol to produce p-aminophenol. CuCo2O4 morphologies can be controlled in this paper. It can be found that the sintering temperature has an important impact on their phase structure and microstructure. Especially the treatment temperature above 700 °C can induce a rapid growth for CuCo2O4 nanoparticles. The catalytic test proved that CuCo2O4 nanoparticles exhibit excellent catalytic activity towards the reduction of p-nitrophenol. Comparative experiments indicated that CuO and CuCoOx nanoparticlesalso exhibit certain catalytic activity in the p-nitrophenol reduction but no any catalytic activity can be observed for Co3O4. Meanwhile, it can be found that the catalytic activity of CuCo2O4 is slightly higher than CuFe2O4 under the same synthesis condition.
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This work was supported by National Natural Science Foundation (21201096) and the education department of Liaoning Province, China (L2010242, LZ2015050). The authors are also grateful for the financial supports from the National Natural Science Foundation of China (No. 21103077), program for New Century Excellent Talents in University (No. NCET-11-1011) and the support from Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Chinese Academy of Sciences.
Conflict of interest
The authors declare that they have no competing interests.
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Zhao, S., Li, Q., Li, F. et al. Synthesis of spinel CuCo2O4 nanoparticles and its application in p-nitrophenol reduction. J Sol-Gel Sci Technol 81, 544–555 (2017). https://doi.org/10.1007/s10971-016-4200-3
- Catalytic reduction