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Issue 42, 2018
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Enhanced Li+ charge storage in naphthalene diimide/vanadium pentoxide intercalates

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Abstract

N,N′-Bis(4-aminophenyl)-1,4,5,8-naphthalene diimide (NDI-ph) was intercalated into lamellar vanadium pentoxide (V2O5) in different amounts to prepare hybrid intercalates. The presence of the imide supports the material’s ability to form lithium salts with the structural stabilization of the oxide matrix. This effect is remarkable in charge/discharge cycles in terms of Li+ uptake and discharge by the lamellar intercalates, as we could double the ion uptake capacity (1.27 Li+ per V2O5 unit vs. 0.66 for pure V2O5), enhance the chemical reversibility and double the specific charge capacity (188 mA h g−1 vs. 98 mA h g−1 for pure V2O5) with very small amounts of this imide. This is the first paper dealing with naphthalene diimide intercalates in vanadium pentoxide xerogel for Li+ storage.

Graphical abstract: Enhanced Li+ charge storage in naphthalene diimide/vanadium pentoxide intercalates

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Publication details

The article was received on 06 Apr 2018, accepted on 15 Jun 2018 and first published on 03 Jul 2018


Article type: Paper
DOI: 10.1039/C8RA02970A
RSC Adv., 2018,8, 24029-24035
  • Open access: Creative Commons BY license
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    Enhanced Li+ charge storage in naphthalene diimide/vanadium pentoxide intercalates

    F. de Araújo Silva, R. S. Cicolani, G. Lima, F. Huguenin and G. Jean-François Demets, RSC Adv., 2018, 8, 24029
    DOI: 10.1039/C8RA02970A

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