Preparation and capacitive property of manganese oxide nanobelt bundles with birnessite-type structure

✍ Scribed by Xiuhua Tang; Hongjuan Li; Zong-Huai Liu; Zupei Yang; Zenglin Wang

• Book ID: 104026197
• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 565 KB
• Volume: 196
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/j.jpowsour.2010.06.067

✦ Synopsis

One-dimensional manganese oxide nanobelt bundles with layered structure have been synthesized by hydrothermally treating the precursor, K-type layered manganese oxide in a NaOH solution of 6.0 mol L -1 at 150 • C for 30 h. The obtained material is characterized by XRD, SEM, TEM and BET analysis. The manganese oxide nanobelt bundles are more than 50 m long and 20-50 nm wide, and the specific surface area is about 160 m 2 g -1 . The electrochemical property of the synthesized manganese oxide nanobelt bundles has been studied using cyclic voltammetry in a mild aqueous electrolyte. The manganese oxide nanobelt bundle exhibits good capacitive behavior and cycling stability in a neutral electrolyte system, and its initial capacitance value is 268 F g -1 .