Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Core-shell structured Fe3O4@MnO2 nanospheres to achieve high cycling stability as electrode for supercapacitors

Core-shell structured Fe3O4@MnO2 nanospheres to achieve high cycling stability as electrode for... A core-shell and spherical structured Fe3O4@MnO2 nanostructure is designed and developed via a facile and low-cost two-step method. Core-shell structured Fe3O4@MnO2 with uniform morphology can be obtained after layered structured δ-MnO2 is grown on the surface of Fe3O4 nanospheres. The crystal structures and morphology of as-prepared Fe3O4@MnO2 are characterized by scanning electron microscopy, X-ray diffraction, nitrogen isotherm analysis, and transmission electron microscopy. At the current density of 0.1 A g−1, the specific capacitance of Fe3O4@MnO2 is 243.7 F g−1, and its capacitance retention is almost 100% after 3000 continuous charge/discharge cycles at current density of 1 A g−1. The excellent cycling stability and low cost make this core-shell structured Fe3O4@MnO2 a promising electrode material for practical applications in pseudocapacitors. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Core-shell structured Fe3O4@MnO2 nanospheres to achieve high cycling stability as electrode for supercapacitors

Ionics , Volume 25 (2) – May 30, 2018

Loading next page...
 
/lp/springer_journal/core-shell-structured-fe3o4-mno2-nanospheres-to-achieve-high-cycling-xOFudYcb35

References (58)

Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Chemistry; Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-018-2602-7
Publisher site
See Article on Publisher Site

Abstract

A core-shell and spherical structured Fe3O4@MnO2 nanostructure is designed and developed via a facile and low-cost two-step method. Core-shell structured Fe3O4@MnO2 with uniform morphology can be obtained after layered structured δ-MnO2 is grown on the surface of Fe3O4 nanospheres. The crystal structures and morphology of as-prepared Fe3O4@MnO2 are characterized by scanning electron microscopy, X-ray diffraction, nitrogen isotherm analysis, and transmission electron microscopy. At the current density of 0.1 A g−1, the specific capacitance of Fe3O4@MnO2 is 243.7 F g−1, and its capacitance retention is almost 100% after 3000 continuous charge/discharge cycles at current density of 1 A g−1. The excellent cycling stability and low cost make this core-shell structured Fe3O4@MnO2 a promising electrode material for practical applications in pseudocapacitors.

Journal

IonicsSpringer Journals

Published: May 30, 2018

There are no references for this article.