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Catalysts 2016, 6(12), 198; doi:10.3390/catal6120198

Facile Synthesis of MnPO4·H2O Nanowire/Graphene Oxide Composite Material and Its Application as Electrode Material for High Performance Supercapacitors

1
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
2
Analysis and Testing Center, Yancheng Normal University, Yancheng 224051, China
3
Tokyo University of Science Yamaguchi, SanyoOnoda-shi, Yamaguchi 756-0884, Japan
*
Authors to whom correspondence should be addressed.
Academic Editors: Maria Jesús Lázaro and Maria Victoria Martínez Huerta
Received: 31 October 2016 / Revised: 26 November 2016 / Accepted: 5 December 2016 / Published: 9 December 2016
(This article belongs to the Special Issue Graphene-Based Materials for Energy Conversion)
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Abstract

In this work, we reported a facile one-pot hydrothermal method to synthesize MnPO4·H2O nanowire/graphene oxide composite material with coated graphene oxide. Transmission electron microscopy and scanning electron microscope were employed to study its morphology information, and X-ray diffraction was used to study the phase and structure of the material. Additionally, X-ray photoelectron spectroscopy was used to study the elements information. To measure electrochemical performances of electrode materials and the symmetry cell, cyclic voltammetry, chronopotentiometry and electrochemical impedance spectrometry were conducted on electrochemical workstation using 3 M KOH electrolytes. Importantly, electrochemical results showed that the as-prepared MnPO4·H2O nanowire/graphene oxide composite material exhibited high specific capacitance (287.9 F·g−1 at 0.625 A·g−1) and specific power (1.5 × 105 W·kg−1 at 2.271 Wh·kg−1), which is expected to have promising applications as supercapacitor electrode material. View Full-Text
Keywords: supercapacitors; manganese phosphate; graphene oxide; high power density supercapacitors; manganese phosphate; graphene oxide; high power density
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Yan, B.; Bin, D.; Ren, F.; Xiong, Z.; Zhang, K.; Wang, C.; Du, Y. Facile Synthesis of MnPO4·H2O Nanowire/Graphene Oxide Composite Material and Its Application as Electrode Material for High Performance Supercapacitors. Catalysts 2016, 6, 198.

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