Hydrothermal synthesis of the clustered network-like Ni 3 S 2 -Co 9 S 8 with enhanced electrochemical behavior for supercapacitor electrode

2017 ◽  
Vol 110 ◽  
pp. 1-8 ◽  
Author(s):  
Tao Han ◽  
Liya Jiang ◽  
Hongfang Jiu ◽  
Jianxia Chang
Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 924 ◽  
Author(s):  
Francisco Gálvez ◽  
Marta Cabello ◽  
Pedro Lavela ◽  
Gregorio F. Ortiz ◽  
José L. Tirado

Sodium and magnesium batteries with intercalation electrodes are currently alternatives of great interest to lithium in stationary applications, such as distribution networks or renewable energies. Hydrated laminar oxides such as birnessites are an attractive cathode material for these batteries. Sodium and potassium birnessite samples have been synthesized by thermal and hydrothermal oxidation methods. Hybrid electrochemical cells have been built using potassium birnessite in aqueous sodium electrolyte, when starting in discharge and with a capacity slightly higher than 70 mA h g−1. Hydrothermal synthesis generally shows slightly poorer electrochemical behavior than their thermal counterparts in both sodium and potassium batteries. The study on hybrid electrolytes has resulted in the successful galvanostatic cycling of both sodium birnessite and potassium birnessite in aqueous magnesium electrolyte, with maximum capacities of 85 and 50 mA h g−1, respectively.


2002 ◽  
Vol 47 (20) ◽  
pp. 3287-3295 ◽  
Author(s):  
Seung-Taek Myung ◽  
Shinichi Komaba ◽  
Naoaki Kumagai

2013 ◽  
Vol 18 (1) ◽  
pp. 235-247 ◽  
Author(s):  
Huaihao Zhang ◽  
Jiangna Gu ◽  
Yuanyuan Jiang ◽  
Jing Zhao ◽  
Xiaoxing Zhang ◽  
...  

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