Urchin-like MnO2 capped ZnO nanorods as high-rate and high-stability pseudocapacitor electrodes. (20th December 2015)

• Record Type: Journal Article
• Authors: Li, Wenyao; He, Guanjie; Shao, Jiajia; Liu, Qian; Xu, Kaibing; Hu, Junqing; Parkin, Ivan P.
• Is Part Of: Electrochimica acta. Volume 186(2015)
• Page Start: 1
• Page End: 6
• Publication Date: 2015-12-20
• Subjects: ZnO@MnO2 -- core@shell -- high-rate -- high-stability -- pseudocapacitor electrode; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.10.140
• Languages: English
• ISSNs: 0013-4686

Abstract

Graphical abstract: Urchin-like ZnO@MnO2 core@shell nanostructures were synthesized and showed an improved electrochemical properties i.e. ∼59.4% retention of its initial capacitance even when current density increased 50 times and 111.3% of its original capacitance even after 5000 long-term cycles. Abstract: Urchin-like ZnO@MnO2 core@shell nanostructures were synthesized via two step easy-controlled hydrothermal methods intercalated with a carbonization process. As a powder electrode, it showed improved electrochemical properties (∼59.4% retention of its initial capacitance even when current density increased 50 times and 111.3% of its original capacitance after 5000 long-term cycles) compared with bare MnO2 nanoflakes and many reported binder-free ZnO@MnO2 electrodes, which could be considered as high-rate and high-stability pseudocapacitor electrodes.