催化学报 ›› 2014, Vol. 35 ›› Issue (6): 960-969.DOI: 10.1016/S1872-2067(14)60099-1

• 研究论文 • 上一篇    下一篇

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

Olga Yu. Podyachevaa, Andrei I. Stadnichenkoa,b, Svetlana A. Yashnika, Olga A. Stonkusa,b, Elena M. Slavinskayaa, Andrei I. Boronina,b, Andrei V. Puzyninc, Zinfer R. Ismagilova,c   

  1. a Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, Novosibirsk 630090, Russia;
    b Novosibirsk State University, Ul. Pirogova 2, Novosibirsk, 630090, Russia;
    c Institute of Coal Chemistry and Material Science, Pr. Sovetskiy 18, Kemerovo 650000, Russia
  • 收稿日期:2014-03-27 修回日期:2014-04-09 出版日期:2014-05-30 发布日期:2014-06-03
  • 通讯作者: Olga Yu. Podyacheva
  • 基金资助:

    This work was supported by RFBR Grant 12-03-01091-a, Presidium RAS (Project 24.51), Presidium SB RAS (Project 36, Project 75).

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

Olga Yu. Podyachevaa, Andrei I. Stadnichenkoa,b, Svetlana A. Yashnika, Olga A. Stonkusa,b, Elena M. Slavinskayaa, Andrei I. Boronina,b, Andrei V. Puzyninc, Zinfer R. Ismagilova,c   

  1. a Boreskov Institute of Catalysis, Pr. Akademika Lavrentieva 5, Novosibirsk 630090, Russia;
    b Novosibirsk State University, Ul. Pirogova 2, Novosibirsk, 630090, Russia;
    c Institute of Coal Chemistry and Material Science, Pr. Sovetskiy 18, Kemerovo 650000, Russia
  • Received:2014-03-27 Revised:2014-04-09 Online:2014-05-30 Published:2014-06-03
  • Supported by:

    This work was supported by RFBR Grant 12-03-01091-a, Presidium RAS (Project 24.51), Presidium SB RAS (Project 36, Project 75).

摘要:

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.

关键词: Cobalt oxide, Nitrogen-doped carbon nanofibers, Nanocomposite, CO oxidation, Capacity

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