Nitrogen/oxygen codoped hierarchical porous Carbons/Selenium cathode with excellent lithium and sodium storage behavior

2022 ◽  
Vol 608 ◽  
pp. 265-274
Author(s):  
Qian Zhao ◽  
Yan Meng ◽  
Linghui Su ◽  
Wanglai Cen ◽  
Qingyuan Wang ◽  
...  
2017 ◽  
Vol 13 ◽  
pp. 1332-1341 ◽  
Author(s):  
Desirée Leistenschneider ◽  
Nicolas Jäckel ◽  
Felix Hippauf ◽  
Volker Presser ◽  
Lars Borchardt

A solvent-free synthesis of hierarchical porous carbons is conducted by a facile and fast mechanochemical reaction in a ball mill. By means of a mechanochemical ball-milling approach, we obtained titanium(IV) citrate-based polymers, which have been processed via high temperature chlorine treatment to hierarchical porous carbons with a high specific surface area of up to 1814 m2 g−1 and well-defined pore structures. The carbons are applied as electrode materials in electric double-layer capacitors showing high specific capacitances with 98 F g−1 in organic and 138 F g−1 in an ionic liquid electrolyte as well as good rate capabilities, maintaining 87% of the initial capacitance with 1 M TEA-BF4 in acetonitrile (ACN) and 81% at 10 A g−1 in EMIM-BF4.


2021 ◽  
Author(s):  
Feiqiang Guo ◽  
Yinbo Zhan ◽  
Xiaopeng Jia ◽  
Huiming Zhou ◽  
Shuang Liang ◽  
...  

Using Sargassum as the precursor, a novel approach was developed to synthesize three-dimensional porous carbons as high-performance electrode materials for supercapacitors via KOH activation and subsequent nitrogen-doping employing melamine as...


Carbon ◽  
2019 ◽  
Vol 149 ◽  
pp. 105-116 ◽  
Author(s):  
Fangyan Liu ◽  
Zixing Wang ◽  
Haitao Zhang ◽  
Long Jin ◽  
Xiang Chu ◽  
...  

2015 ◽  
Vol 159 ◽  
pp. 377-380 ◽  
Author(s):  
Yafei Zhang ◽  
Chuanxiang Zhang ◽  
Guangxu Huang ◽  
Baolin Xing ◽  
Yuling Duan

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