Ultrathin Ni1- x Co x S2 nanoflakes as high energy density electrode materials for asymmetric supercapacitors.

ABSTRACT: Transition metal compounds such as nickel cobalt sulfides (Ni-Co-S) are promising electrode materials for energy storage devices such as supercapacitors owing to their high electrochemical performance and good electrical conductivity. Developing ultrathin nanostructured materials is critical to achieving high electrochemical performance, because they possess rich active sites for electrochemical reactions, shortening the transport path of ions in the electrolyte during the charge/discharge processes. This paper describes the synthesis of ultrathin (around 10 nm) flower-like Ni1- x Co x S2 nanoflakes by using templated NiCo oxides. The as-prepared Ni1- x Co x S2 material retained the morphology of the initial NiCo oxide material and exhibited a much improved electrochemical performance. The

SUBMITTER: Wang X 

PROVIDER: S-EPMC6880822 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature