Formation of Onion-Like NiCo<sub>2</sub> S<sub>4</sub> Particles via Sequential Ion-Exchange for Hybrid Supercapacitors.

Guan, Bu Yuan; Yu, Le; Wang, Xiao; Song, Shuyan; Lou, Xiong Wen David · Adv Mater · 2017

basic_science · Level V

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Abstract

Onion-like NiCo<sub>2</sub> S<sub>4</sub> particles with unique hollow structured shells are synthesized by a sequential ion-exchange strategy. With the structural and compositional advantages, these unique onion-like NiCo<sub>2</sub> S<sub>4</sub> particles exhibit enhanced electrochemical performance as an electrode material for hybrid supercapacitors.