3D porous binary-heteroatom doped carbon nanosheet/electrochemically exfoliated graphene hybrids for high performance flexible solid-state supercapacitors

2018 ◽  
Vol 6 (18) ◽  
pp. 8750-8756 ◽  
Author(s):  
Yuxi Liu ◽  
Xiaoming Qiu ◽  
Xiaobin Liu ◽  
Yongchang Liu ◽  
Li-Zhen Fan
Keyword(s):  
Solid State ◽  
Specific Surface ◽  
Surface Area ◽  
Functional Groups ◽  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
High Specific Surface Area ◽  
Exfoliated Graphene ◽  
Sulfur Containing

3D porous carbon nanosheet/electrochemically exfoliated graphene hybrids with abundant nitrogen- and sulfur-containing functional groups and high specific surface area were prepared and evaluated as electrode materials.

Porous carbon nanoflakes with a high specific surface area derived from a kapok fiber for high-performance electrode materials of supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 6967-6977 ◽  
Author(s):  
Weibing Xu ◽  
Bin Mu ◽  
Aiqin Wang
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
High Specific Surface Area ◽  
Alkali Activation ◽  
Kapok Fiber ◽  
Carbon Nanoflakes

Well-defined porous carbon nanoflakes with a high specific surface area have been successfully prepared via pyrolytic carbonization and alkali activation treatment of an easily available kapok fiber.

KCl-assisted activation: Moringa oleifera branch-derived porous carbon for high performance supercapacitor

2021 ◽  
Vol 45 (12) ◽  
pp. 5712-5719
Author(s):  
Yongxiang Zhang ◽  
Peifeng Yu ◽  
Mingtao Zheng ◽  
Yong Xiao ◽  
Hang Hu ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
High Performance ◽  
Moringa Oleifera ◽  
High Specific Surface Area ◽  
Porous Carbons

Porous carbons with a high specific surface area (2314–3470 m2 g−1) are prepared via a novel KCl-assisted activation strategy for high-performance supercapacitor.

BCN nanosheets templated by g-C3N4 for high performance capacitive deionization

2018 ◽  
Vol 6 (30) ◽  
pp. 14644-14650 ◽  
Author(s):  
Shiyong Wang ◽  
Gang Wang ◽  
Tingting Wu ◽  
Yunqi Zhang ◽  
Fei Zhan ◽  
...  
Keyword(s):  
Specific Surface ◽  
Pore Structure ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Performance ◽  
Electrode Materials ◽  
High Specific Surface Area ◽  
Capacitive Deionization ◽  
First Time

BCN nanosheets show a pore structure with a high specific surface area and are investigated as CDI electrode materials for the first time.

Hierarchical design of Cu1−xNixS nanosheets for high-performance asymmetric solid-state supercapacitors

2017 ◽  
Vol 5 (37) ◽  
pp. 19760-19772 ◽  
Author(s):  
Jayaraman Balamurugan ◽  
Chao Li ◽  
Tran Duy Thanh ◽  
Ok-Kyung Park ◽  
Nam Hoon Kim ◽  
...  
Keyword(s):  
Solid State ◽  
Specific Surface ◽  
Surface Area ◽  
Anion Exchange ◽  
High Performance ◽  
High Specific Surface Area ◽  
Hierarchical Design ◽  
Supercapacitor Electrode ◽  
Nanosheet Array ◽  
Exchange Technique

A novel ultra-thin Cu1−xNixS nanosheet array supercapacitor electrode with high specific surface area, unique porosity and excellent conductivity was successfully developed via a powerful anion exchange technique.

scholarly journals Nitrogen and oxygen Co-doped porous carbon derived from yam waste for high-performance supercapacitors

RSC Advances ◽  
2021 ◽  
Vol 11 (53) ◽  
pp. 33208-33218
Author(s):  
Zhaojin Li ◽  
Qian Liu ◽  
Lizhi Sun ◽  
Ning Li ◽  
Xiaofeng Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
High Performance ◽  
High Specific Surface Area ◽  
Raw Material ◽  
Excellent Electrochemical Performance ◽  
Co Doped

3D porous carbon with ultra-high specific surface area and excellent electrochemical performance is synthesized by a simple activation and carbonization process through adopting biomass yam waste as raw material.

scholarly journals Bio-Derived Carbon with Tailored Hierarchical Pore Structures and Ultra-High Specific Surface Area for Superior and Advanced Supercapacitors

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 27
Author(s):  
Fuming Zhang ◽  
Xiangshang Xiao ◽  
Dayakar Gandla ◽  
Zhaoxi Liu ◽  
Daniel Q. Tan ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
Electrode Materials ◽  
High Specific Surface Area ◽  
Specific Power ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Ion Size

We report here on a hollow-fiber hierarchical porous carbon exhibiting an ultra-high specific surface area, synthesized by a facile method of carbonization and activation, using the Metaplexis Japonica (MJ) shell. The Metaplexis Japonica-based activated carbon demonstrated a very high specific surface area of 3635 m2 g−1. Correspondingly, the derived carbonaceous material delivers an ultra-high capacitance and superb cycle life in an alkaline electrolyte. The pore-ion size compatibility is optimized using tailored hierarchical porous carbon and different ion sized organic electrolytes. In ionic liquids nonaqueous based electrolytes we tailored the MJ carbon pore structure to the electrolyte ion size. The corresponding supercapacitor shows a superior rate performance and low impedance, and the device records specific energy and specific power densities as high as 76 Wh kg−1 and 6521 W kg−1, as well as a pronounced cycling durability in the ionic liquid electrolytes. Overall, we suggest a protocol for promising carbonaceous electrode materials enabling superior supercapacitors performance.

Bifunctional electrocatalysts of MOF-derived Co–N/C on bamboo-like MnO nanowires for high-performance liquid- and solid-state Zn–air batteries

2018 ◽  
Vol 6 (20) ◽  
pp. 9716-9722 ◽  
Author(s):  
Ya-Nan Chen ◽  
Yibo Guo ◽  
Huijuan Cui ◽  
Zhaojun Xie ◽  
Xin Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Solid State ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Active Sites ◽  
High Performance ◽  
High Specific Surface Area ◽  
Bifunctional Electrocatalysts ◽  
Nanowire Structure

MnO@Co–N/C composites were fabricated with excellent bifunctional catalytic activity and outstanding performance for both liquid- and solid-state Zn–air batteries. The excellent electrocatalytic activities are attributed to the unique 1D nanowire structure with abundant Co–Nx active sites and a high specific surface area.

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