Preparation and electrochemical performance of novel ruthenium–manganese oxide electrode materials for electrochemical capacitors

2009 ◽  
Vol 70 (5) ◽  
pp. 816-820 ◽  
Author(s):  
Jianguo Wen ◽  
Xiangyuan Ruan ◽  
Zhentao Zhou
2010 ◽  
Vol 12 (11) ◽  
pp. 1618-1621 ◽  
Author(s):  
Donghan Kim ◽  
Sun-Ho Kang ◽  
Mahalingam Balasubramanian ◽  
Christopher S. Johnson

2005 ◽  
Vol 152 (1) ◽  
pp. A229 ◽  
Author(s):  
E. Raymundo-Piñero ◽  
V. Khomenko ◽  
E. Frackowiak ◽  
F. Béguin

2020 ◽  
Vol 13 (02) ◽  
pp. 2051007
Author(s):  
Jie Dong ◽  
Qinghao Yang ◽  
Qiuli Zhao ◽  
Zhenzhong Hou ◽  
Yue Zhou ◽  
...  

Electrode materials with a high specific capacitance, outstanding reversibility and excellent cycle stability are constantly pursued for supercapacitors. In this paper, we present an approach to improve the electrochemical performance by combining the advantages of both inorganic and organic. Ni-MnO2/PANi-co-PPy composites are synthesized, with the copolymer of aniline/pyrrole being coated on the surface of Ni-doped manganese dioxide nanospheres. The inorganic–organic composite enables a substantial increase in its specific capacitance and cycle stability. When the mass ratio of Ni-MnO2 to aniline and pyrrole mixed monomer is 1:5, the composite delivers high specific capacitance of 445.49[Formula: see text]F/g at a scan rate of 2[Formula: see text]mV/s and excellent cycle stability of 61.65% retention after 5000 cycles. The results indicate that the Ni-MnO2/PANi-co-PPy composites are promising electrode materials for future supercapacitors application.


2021 ◽  
Vol 273 ◽  
pp. 116688
Author(s):  
Haidie Lan ◽  
Arzugul Muslim ◽  
Mehriban Hojiahmat ◽  
Lin Wang ◽  
Yu Meng ◽  
...  

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