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Bio-inspired synthesis of N,F co-doped 3D graphitized carbon foams containing manganese fluoride nanocrystals for lithium ion batteries

Journal Article


Abstract


  • A work combining biological engineering, chemical science and energy storage application is demonstrated here. In particular, recombinant elastin-like polypeptides containing metal binding motifs (ELK16-FLAG) were constructed using genetic engineering techniques and were crosslinked to form a 3D porous matrix to direct the assembly of precursors. With the assistance of the ELK16-FLAG protein hydrogel template, a novel, facile and environmentally friendly synthesis approach is developed by successful synthesis of N,F co-doped three-dimensional porous carbon supported MnF2 nanocrystals (MnF2@N,F-C). Here, we used an ionic liquid (BmimBF4) to preserve the porous structure of the protein matrix, and serve as a fluorine source for carbon doping and the formation of MnF2 nanocrystals. After annealing at 600 °C in argon, three-dimensional N,F co-doped porous graphitized carbon-supported MnF2 nanocrystals (MnF2@N,F-C) were obtained. The annealed MnF2@N,F-C products were tested as anodes in rechargeable lithium ion batteries and high rate capabilities were obtained as a result of the nano-sized MnF2 crystallites and N/F-doping in the 3D graphitized structure.

Authors


  •   Lu, Yan
  •   Zhou, Yanping (external author)
  •   Yan, QingYu (external author)
  •   Fong, Eileen (external author)

Publication Date


  • 2016

Citation


  • Lu, Y., Zhou, Y. P., Yan, Q. Y. & Fong, E. (2016). Bio-inspired synthesis of N,F co-doped 3D graphitized carbon foams containing manganese fluoride nanocrystals for lithium ion batteries. Journal of Materials Chemistry A, 4 (7), 2691-2698.

Scopus Eid


  • 2-s2.0-84958041021

Number Of Pages


  • 7

Start Page


  • 2691

End Page


  • 2698

Volume


  • 4

Issue


  • 7

Place Of Publication


  • United Kingdom

Abstract


  • A work combining biological engineering, chemical science and energy storage application is demonstrated here. In particular, recombinant elastin-like polypeptides containing metal binding motifs (ELK16-FLAG) were constructed using genetic engineering techniques and were crosslinked to form a 3D porous matrix to direct the assembly of precursors. With the assistance of the ELK16-FLAG protein hydrogel template, a novel, facile and environmentally friendly synthesis approach is developed by successful synthesis of N,F co-doped three-dimensional porous carbon supported MnF2 nanocrystals (MnF2@N,F-C). Here, we used an ionic liquid (BmimBF4) to preserve the porous structure of the protein matrix, and serve as a fluorine source for carbon doping and the formation of MnF2 nanocrystals. After annealing at 600 °C in argon, three-dimensional N,F co-doped porous graphitized carbon-supported MnF2 nanocrystals (MnF2@N,F-C) were obtained. The annealed MnF2@N,F-C products were tested as anodes in rechargeable lithium ion batteries and high rate capabilities were obtained as a result of the nano-sized MnF2 crystallites and N/F-doping in the 3D graphitized structure.

Authors


  •   Lu, Yan
  •   Zhou, Yanping (external author)
  •   Yan, QingYu (external author)
  •   Fong, Eileen (external author)

Publication Date


  • 2016

Citation


  • Lu, Y., Zhou, Y. P., Yan, Q. Y. & Fong, E. (2016). Bio-inspired synthesis of N,F co-doped 3D graphitized carbon foams containing manganese fluoride nanocrystals for lithium ion batteries. Journal of Materials Chemistry A, 4 (7), 2691-2698.

Scopus Eid


  • 2-s2.0-84958041021

Number Of Pages


  • 7

Start Page


  • 2691

End Page


  • 2698

Volume


  • 4

Issue


  • 7

Place Of Publication


  • United Kingdom