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

Ultrafast surface modification of Ni3S2 nanosheet arrays with Ni-Mn bimetallic hydroxides for... 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 unique surface modification nanostructures and the synergistic effect of the bimetallic hydroxide film. The impressive results provide new opportunity to produce advanced electrode materials by simple and green route and this material is expected to apply in high energy density storage systems. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Scientific Reports Springer Journals

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

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Publisher
Nature Publishing Group UK
Copyright
Copyright © 2018 by The Author(s)
Subject
Science, Humanities and Social Sciences, multidisciplinary; Science, Humanities and Social Sciences, multidisciplinary; Science, multidisciplinary
eISSN
2045-2322
D.O.I.
10.1038/s41598-018-22448-w
Publisher site
See Article on Publisher Site

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 unique surface modification nanostructures and the synergistic effect of the bimetallic hydroxide film. The impressive results provide new opportunity to produce advanced electrode materials by simple and green route and this material is expected to apply in high energy density storage systems.

Journal

Scientific ReportsSpringer Journals

Published: Mar 14, 2018

References

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