Catalytic and capacity properties of nanocomposites based on cobalt oxide and nitrogen-doped carbon nanofibers

doi:10.1016/S1872-2067(14)60099-1

Abstract

Abstract:

The nanocomposites based on cobalt oxide and nitrogen-doped carbon nanofibers (N-CNFs) with cobalt oxide contents of 10-90 wt% were examined as catalysts in the CO oxidation and supercapacity electrodes. Depending on Co₃O₄ content, such nanocomposites have different morphologies of cobalt oxide nanoparticles, distributions over the bulk, and ratios of Co³⁺/Co²⁺ cations. The 90%Co₃O₄-N-CNFs nanocomposite showed the best activity because of the increased concentration of defects in N-CNFs. The capacitance of electrodes containing 10%Co₃O₄-N-CNFs was 95 F/g, which is 1.7 times higher than electrodes made from N-CNFs.

Key words: Cobalt oxide, Nitrogen-doped carbon nanofibers, Nanocomposite, CO oxidation, Capacity

Olga Yu. Podyacheva, Andrei I. Stadnichenko, Svetlana A. Yashnik, Olga A. Stonkus, Elena M. Slavinskaya, Andrei I. Boronin, Andrei V. Puzynin, Zinfer R. Ismagilov. Catalytic and capacity properties of nanocomposites based on cobalt oxide and nitrogen-doped carbon nanofibers[J]. Chinese Journal of Catalysis, 2014, 35(6): 960-969.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(14)60099-1

https://www.cjcatal.com/EN/Y2014/V35/I6/960

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