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In-situ formation of MOF derived mesoporous Co 3 N/amorphous N-doped carbon nanocubes as an efficient electrocatalytic oxygen evolution reaction

Journal Article


Abstract


  • The suitable materials, metal nitrides, are a promising class of electrocatalyst materials for a highly efficient oxygen evolution reaction (OER) because they exhibit superior intrinsic conductivity and have higher sustainability than oxide-based materials. To our knowledge, for the first time, we report a designable synthesis of three-dimensional (3D) and mesoporous Co 3 N@amorphous N-doped carbon (AN-C) nanocubes (NCs) with well-controlled open-framework structures via monodispersed Co 3 [Co(CN) 6 ] 2 Prussian blue analogue (PBA) NC precursors using in situ nitridation and calcination processes. Co 3 N@AN-C NCs (2 h) demonstrate better OER activity with a remarkably low Tafel plot (69.6 mV·dec −1 ), low overpotential of 280 mV at a current density of 10 mA·cm −2 . Additionally, excellent cycling stability in alkaline electrolytes was exhibited without morphological changes and voltage elevations, superior to most reported hierarchical structures of transition-metal nitride particles. The presented strategy for synergy effects of metal-organic frameworks (MOFs)-derived transition-metal nitrides-carbon hybrid nanostructures provides prospects for developing high-performance and advanced electrocatalyst materials. [Figure not available: see fulltext.].

Authors


  •   Kang, Bong Kyun. (external author)
  •   Im, Seo Young. (external author)
  •   Lee, Jooyoung (external author)
  •   Kwag, Sung Hoon. (external author)
  •   Kwon, Seok Bin. (external author)
  •   Tiruneh, SintayehuNibret (external author)
  •   Kim, Min-Jun (external author)
  •   Kim, Jung Ho
  •   Yang, Woo Seok. (external author)
  •   Lim, Byungkwon (external author)
  •   Yoon, Dae (external author)

Publication Date


  • 2019

Citation


  • Kang, B. Kyun., Im, S. Young., Lee, J., Kwag, S. Hoon., Kwon, S. Bin., Tiruneh, S., Kim, M., Kim, J. Ho., Yang, W. Seok., Lim, B. & Yoon, D. Ho. (2019). In-situ formation of MOF derived mesoporous Co 3 N/amorphous N-doped carbon nanocubes as an efficient electrocatalytic oxygen evolution reaction. Nano Research, 12 (7), 1605-1611.

Scopus Eid


  • 2-s2.0-85064891857

Number Of Pages


  • 6

Start Page


  • 1605

End Page


  • 1611

Volume


  • 12

Issue


  • 7

Place Of Publication


  • China

Abstract


  • The suitable materials, metal nitrides, are a promising class of electrocatalyst materials for a highly efficient oxygen evolution reaction (OER) because they exhibit superior intrinsic conductivity and have higher sustainability than oxide-based materials. To our knowledge, for the first time, we report a designable synthesis of three-dimensional (3D) and mesoporous Co 3 N@amorphous N-doped carbon (AN-C) nanocubes (NCs) with well-controlled open-framework structures via monodispersed Co 3 [Co(CN) 6 ] 2 Prussian blue analogue (PBA) NC precursors using in situ nitridation and calcination processes. Co 3 N@AN-C NCs (2 h) demonstrate better OER activity with a remarkably low Tafel plot (69.6 mV·dec −1 ), low overpotential of 280 mV at a current density of 10 mA·cm −2 . Additionally, excellent cycling stability in alkaline electrolytes was exhibited without morphological changes and voltage elevations, superior to most reported hierarchical structures of transition-metal nitride particles. The presented strategy for synergy effects of metal-organic frameworks (MOFs)-derived transition-metal nitrides-carbon hybrid nanostructures provides prospects for developing high-performance and advanced electrocatalyst materials. [Figure not available: see fulltext.].

Authors


  •   Kang, Bong Kyun. (external author)
  •   Im, Seo Young. (external author)
  •   Lee, Jooyoung (external author)
  •   Kwag, Sung Hoon. (external author)
  •   Kwon, Seok Bin. (external author)
  •   Tiruneh, SintayehuNibret (external author)
  •   Kim, Min-Jun (external author)
  •   Kim, Jung Ho
  •   Yang, Woo Seok. (external author)
  •   Lim, Byungkwon (external author)
  •   Yoon, Dae (external author)

Publication Date


  • 2019

Citation


  • Kang, B. Kyun., Im, S. Young., Lee, J., Kwag, S. Hoon., Kwon, S. Bin., Tiruneh, S., Kim, M., Kim, J. Ho., Yang, W. Seok., Lim, B. & Yoon, D. Ho. (2019). In-situ formation of MOF derived mesoporous Co 3 N/amorphous N-doped carbon nanocubes as an efficient electrocatalytic oxygen evolution reaction. Nano Research, 12 (7), 1605-1611.

Scopus Eid


  • 2-s2.0-85064891857

Number Of Pages


  • 6

Start Page


  • 1605

End Page


  • 1611

Volume


  • 12

Issue


  • 7

Place Of Publication


  • China