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Title: The simple preparation of birnessite-type manganese oxide with flower-like microsphere morphology and its remarkable capacity retention

Abstract

Graphical abstract: Flower-like birnessite-type manganese oxide microspheres with large specific surface area and excellent electrochemical properties have been prepared by a facile hydrothermal method. Highlights: ► Birnessite-type manganese oxide with flower-like microsphere morphology and large specific surface area. ► A facile low-temperature hydrothermal method. ► Novel flower-like microsphere consists of the thin nano-platelets. ► Birnessite-type manganese oxide exhibits an ideal capacitive behavior and excellent cycling stability. -- Abstract: Birnessite-type manganese oxide with flower-like microsphere morphology and large specific surface area has been prepared by hydrothermal treating a mixture solution of KMnO{sub 4} and (NH{sub 4}){sub 2}SO{sub 4} at 90 °C for 24 h. The obtained material is characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and N{sub 2} adsorption–desorption. Results indicate that the birnessite-type manganese oxide shows novel flower-like microsphere morphology and a specific surface area of 280 m{sup 2} g{sup −1}, and the flower-like microsphere consists of the thin nano-platelets. Electrochemical characterization indicates that the prepared material exhibits an ideal capacitive behavior with a capacitance value of 278 F g{sup −1} in 1 mol L{sup −1} Na{sub 2}SO{sub 4} aqueous solution at a scan rate of 5 mV s{sup −1}. Moreover, the prepared manganese oxide electrode showsmore » excellent cycle stability, and the specific capacitance can maintain 98.6% of the initial one after 5000 cycles.« less

Authors:
; ; ;  [1];  [2];  [1];  [2]
  1. Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, Xi’an 710062 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22215592
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; AMMONIUM SULFATES; AQUEOUS SOLUTIONS; HYDROTHERMAL SYNTHESIS; MANGANESE OXIDES; SCANNING ELECTRON MICROSCOPY; SODIUM SULFATES; SPECIFIC SURFACE AREA; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Zhu, Gang, Deng, Lingjuan, Wang, Jianfang, Kang, Liping, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, Liu, Zong-Huai, E-mail: zhliu@snnu.edu.cn, and School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062. The simple preparation of birnessite-type manganese oxide with flower-like microsphere morphology and its remarkable capacity retention. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.06.065.
Zhu, Gang, Deng, Lingjuan, Wang, Jianfang, Kang, Liping, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, Liu, Zong-Huai, E-mail: zhliu@snnu.edu.cn, & School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062. The simple preparation of birnessite-type manganese oxide with flower-like microsphere morphology and its remarkable capacity retention. United States. doi:10.1016/J.MATERRESBULL.2012.06.065.
Zhu, Gang, Deng, Lingjuan, Wang, Jianfang, Kang, Liping, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, Liu, Zong-Huai, E-mail: zhliu@snnu.edu.cn, and School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062. Thu . "The simple preparation of birnessite-type manganese oxide with flower-like microsphere morphology and its remarkable capacity retention". United States. doi:10.1016/J.MATERRESBULL.2012.06.065.
@article{osti_22215592,
title = {The simple preparation of birnessite-type manganese oxide with flower-like microsphere morphology and its remarkable capacity retention},
author = {Zhu, Gang and Deng, Lingjuan and Wang, Jianfang and Kang, Liping and School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062 and Liu, Zong-Huai, E-mail: zhliu@snnu.edu.cn and School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062},
abstractNote = {Graphical abstract: Flower-like birnessite-type manganese oxide microspheres with large specific surface area and excellent electrochemical properties have been prepared by a facile hydrothermal method. Highlights: ► Birnessite-type manganese oxide with flower-like microsphere morphology and large specific surface area. ► A facile low-temperature hydrothermal method. ► Novel flower-like microsphere consists of the thin nano-platelets. ► Birnessite-type manganese oxide exhibits an ideal capacitive behavior and excellent cycling stability. -- Abstract: Birnessite-type manganese oxide with flower-like microsphere morphology and large specific surface area has been prepared by hydrothermal treating a mixture solution of KMnO{sub 4} and (NH{sub 4}){sub 2}SO{sub 4} at 90 °C for 24 h. The obtained material is characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and N{sub 2} adsorption–desorption. Results indicate that the birnessite-type manganese oxide shows novel flower-like microsphere morphology and a specific surface area of 280 m{sup 2} g{sup −1}, and the flower-like microsphere consists of the thin nano-platelets. Electrochemical characterization indicates that the prepared material exhibits an ideal capacitive behavior with a capacitance value of 278 F g{sup −1} in 1 mol L{sup −1} Na{sub 2}SO{sub 4} aqueous solution at a scan rate of 5 mV s{sup −1}. Moreover, the prepared manganese oxide electrode shows excellent cycle stability, and the specific capacitance can maintain 98.6% of the initial one after 5000 cycles.},
doi = {10.1016/J.MATERRESBULL.2012.06.065},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}