Flexible three-dimensional nanoporous metal-based energy devices

Yang Yang, Gedeng Ruan, Changsheng Xiang, Gunuk Wang, James M. Tour

Research output: Contribution to journalArticlepeer-review

112 Citations (Scopus)


A flexible three-dimensional (3-D) nanoporous NiF2-dominant layer on poly(ethylene terephthalate) has been developed. The nanoporous layer itself can be freestanding without adding any supporting carbon materials or conducting polymers. By assembling the nanoporous layer into two-electrode symmetric devices, the inorganic material delivers battery-like thin-film supercapacitive performance with a maximum capacitance of 66 mF cm-2 (733 F cm-3 or 358 F g-1), energy density of 384 Wh kg-1, and power density of 112 kW kg-1. Flexibility and cyclability tests show that the nanoporous layer maintains its high performance under long-term cycling and different bending conditions. The fabrication of the 3-D nanoporous NiF2 flexible electrode could be easily scaled.

Original languageEnglish
Pages (from-to)6187-6190
Number of pages4
JournalJournal of the American Chemical Society
Issue number17
Publication statusPublished - 2014 Apr 30
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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