Insulation board-derived N/O self-doped porous carbon as electrode materials for high-performance symmetric supercapacitor

2021 ◽  
Author(s):  
Yingjie Su ◽  
Zhenjie Lu ◽  
Junxia Cheng ◽  
Xuefei Zhao ◽  
Xingxing Chen ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Phenolic Resin ◽  
Electrode Materials ◽  
Low Cost ◽  
Carbon Electrode ◽  
Symmetric Supercapacitor ◽  
High Efficient ◽  
Porous Carbon Electrode

Development of high-efficient and low-cost heteroatom-doped porous carbon electrode is vitally important for high-performance supercapacitors. Herein, waste phenolic resin-based insulation boards, which naturally contain N and O elements, were deliberated...

N, S, O Self-Doped Porous Carbon Nanoarchitectonics Derived from Pinecone with Outstanding Supercapacitance Performances

2020 ◽  
Vol 20 (5) ◽  
pp. 2728-2735 ◽  
Author(s):  
Di Zhang ◽  
Yanchun Xue ◽  
Jiale Chen ◽  
Xingmei Guo ◽  
Dandan Yang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Electrode Materials ◽  
Low Cost ◽  
High Specific Capacitance ◽  
High Specific Surface Area ◽  
Koh Activation ◽  
Double Layer Capacitor ◽  
Symmetric Supercapacitor ◽  
Biomass N ◽  
One Step

Biomass-derived porous carbons are considered as one of the most promising electrode materials for supercapacitors due to their low-cost and natural abundance. In this work, pinecone is used to fabricate biomass N, S, O-doped porous carbon via one-step carbonization process with KOH activation. By optimizing the additive amount of KOH and calcination temperature, the asprepared product shows a high specific surface area and pore volume up to 1593.8 m2 g−1 and 0.8582 cm3 g−1, respectively. As an electric double-layer capacitor (EDLC) electrode, the N, S, O-doped porous carbon exhibits a high specific capacitance of 285 F g−1 at 0.5 A g−1 and good rate performance with a capacitance retention of 78.6% from 0.5 to 20 A g−1. Furthermore, the as-assembled symmetric supercapacitor with 6 mol L−1 KOH as electrolyte possesses a promising energy density of 6.34 Wh kg−1 and a power density of 250 W kg−1. Outstanding cycling stability was also demonstrated with 94.4% capacitance retention after 10,000 charge/discharge cycles at 1 A g−1.

scholarly journals Facile synthesis of hierarchical porous carbon derived from carboxyl graphene oxide/phenolic foam for high performance supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (69) ◽  
pp. 43965-43977 ◽  
Author(s):  
Xiaozheng Li ◽  
Xi Li ◽  
Jian Zhou ◽  
Yulin Dong ◽  
Zhizhong Xie ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Porous Carbon ◽  
High Performance ◽  
Phenolic Resin ◽  
Carbon Materials ◽  
Low Cost ◽  
Hierarchical Porous Carbon ◽  
Facile Synthesis ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbon Materials

Hierarchical porous carbon materials were prepared using a facile and low-cost method from phenolic resin and carboxyl graphene oxide by foaming and carbonization and exhibited an excellent capacitive performance.

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