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Single-crystalline NiCo2O4 nanoneedle arrays grown on conductive substrates as binder-free electrodes for high-performance supercapacitors

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • Gen Qiang Zhang
  • Hao Bin Wu
  • Harry E. Hoster
  • Mary B. Chan-Park
  • Xiong Wen (David) Lou
<mark>Journal publication date</mark>11/2012
<mark>Journal</mark>Energy and Environmental Science
Issue number11
Number of pages4
Pages (from-to)9453-9456
Publication StatusPublished
<mark>Original language</mark>English


In this work, we have successfully grown single-crystalline nano-needle arrays of NiCo2O4 on conductive substrates such as Ni foam and Ti foil through a simple solution method together with a post-annealing treatment. Remarkably, the NiCo2O4-Ni foam binder-free electrode exhibits greatly improved electrochemical performance with very high capacitance and excellent cycling stability.