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Three-dimensional nitrogen and phosphorous Co-doped graphene aerogel electrocatalysts for efficient oxygen reduction reaction

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  • ReceivedNov 1, 2017
  • AcceptedDec 13, 2017
  • PublishedFeb 10, 2018

Abstract


Funded by

the Natural Scientific Foundation of China(21503116)

the Open Funds of the State Key Laboratory of Organic-Inorganic Composites

Beijing University of Chemical Technology(oic-201601008)

the Qingdao Basic & Applied Research Project(15-9-1-56-jch)

the Youth 1000 Talent Program of China are also acknowledged.


Acknowledgment

This work was supported by the Natural Scientific Foundation of China (21503116), the Open Funds of the State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology (oic-201601008), the Qingdao Basic & Applied Research Project (15-9-1-56-jch), Taishan Scholars Program of Shandong Province (tsqn20161004) and the Youth 1000 Talent Program of China.


Interest statement

The authors declare that they have no conflict of interest.


Supplement

The supporting information is available online at http://chem.scichina.com and http://link.springer.com/journal/11426. The supporting materials are published as submitted, without typesetting or editing. The responsibility for scientific accuracy and content remains entirely with the authors.


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  • Scheme 1

    Schematic illustration for the preparation of nitrogen and phosphorous co-doped graphene aerogel (NPGA) via a facile in-situ polymerization and subsequent pyrolysis process (color online).

  • Figure 1

    (a–d) SEM images of PANi-GO (a, b) and PANi-GO-1000 (c, d); (e) TEM image of single PANi-GO-1000 nanosheet; (f) TEM image of PANi-GO-1000 and the corresponding element mapping (color online).

  • Figure 2

    The high resolution XPS spectra of C1s for PANi-GO (a) and PANi-GO-1000 (b), N1s (c) and P2p (d) for PANi-GO-1000 (color online).

  • Figure 3

    Cyclic voltammetry (CV) curves of samples (color online).

  • Figure 4

    Rotating ring-disk electrode (RRDE) curves (a) of the as-prepared electrocatalyts and Pt/C for ORR, the calculated electron transferred number and the percentage of peroxide species with respect to the total oxygen reduction products (b) (color online).

  • Figure 5

    Polarization and power density curves (a) and the discharging curves (b) of Zn-air batteries using of the as-prepared electrocatalyts and Pt/C. (c) Long-time durability of the Zn-air battery by mechanically replacing Zn and electrolyte (color online).