Ultrafast surface modification of Ni₃S₂ nanosheet arrays with Ni-Mn bimetallic hydroxides for high-performance supercapacitors.

ABSTRACT: Amorphous Ni-Mn bimetallic hydroxide film on the three-dimensional nickle foam (NF)-supported conductive Ni₃S₂ nanosheets (denoted as Ni-Mn-OH@Ni₃S₂/NF) is successfully synthesized by an ultrafast process (5 s). The fascinating structural characteristic endows Ni-Mn-OH@Ni₃S₂/NF electrodes better electrochemical performance. The specific capacitance of 2233.3 F g^-1 at a current density of 15 A g^-1 can achieve high current density charge and discharge at 20/30 A g^-1 that the corresponding capacitance is 1529.16 and 1350 F g^-1, respectively. As well as good cycling performance after 1000 cycles can maintain 72% at 15 A g^-1. The excellent performance can be attributed to uni

SUBMITTER: Zou X 

PROVIDER: S-EPMC5852135 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature