Preparation of nitrogen and sulfur co-doped graphene aerogel with hierarchical porous structure using ionic liquid precursor for high-performance supercapacitor

Ionics ◽  
2018 ◽  
Vol 25 (6) ◽  
pp. 2781-2789 ◽  
Author(s):  
Yujuan Chen ◽  
Li Sun ◽  
Zhiwei Lu ◽  
Zhaoen Liu ◽  
Yuyang Jiang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Porous Structure ◽  
High Performance ◽  
Hierarchical Porous Structure ◽  
Graphene Aerogel ◽  
Liquid Precursor ◽  
Hierarchical Porous ◽  
Doped Graphene ◽  
Co Doped

Hierarchical porous N-doped graphene aerogel with good wettability for high-performance ionic liquid-based supercapacitors

2021 ◽  
Vol 366 ◽  
pp. 137414
Author(s):  
Yujuan Chen ◽  
Yuyang Jiang ◽  
Zhaoen Liu ◽  
Lifang Yang ◽  
Quanzhou Du ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Performance ◽  
Graphene Aerogel ◽  
Hierarchical Porous ◽  
Doped Graphene

scholarly journals Hazardous Petroleum Sludge-Derived Nitrogen and Oxygen Co-Doped Carbon Material with Hierarchical Porous Structure for High-Performance All-Solid-State Supercapacitors

Materials ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2477
Author(s):  
Xiaoyu Li ◽  
Mingyang Zhang ◽  
Zhuowei Tan ◽  
Zhiqiang Gong ◽  
Peikun Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Porous Structure ◽  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
Hierarchical Porous Structure ◽  
Petroleum Sludge ◽  
Synthesis Strategy ◽  
Hierarchical Porous ◽  
Co Doped

Rational design and sustainable preparation of high-performance carbonaceous electrode materials are important to the practical application of supercapacitors. In this work, a cost-effective synthesis strategy for nitrogen and oxygen co-doped porous carbon (NOC) from petroleum sludge waste was developed. The hierarchical porous structure and ultra-high surface area (2514.7 m2 g−1) of NOC electrode materials could provide an efficient transport path and capacitance active site for electrolyte ions. The uniform co-doping of N and O heteroatoms brought enhanced wettability, electrical conductivity and probably additional pseudo-capacitance. The as-obtained NOC electrodes exhibited a high specific capacitance (441.2 F g−1 at 0.5 A g−1), outstanding rate capability, and cycling performance with inconspicuous capacitance loss after 10,000 cycles. Further, the assembled all-solid-state MnO2/NOC asymmetrical supercapacitor device (ASC) could deliver an excellent capacitance of 119.3 F g−1 at 0.2 A g−1 under a wide potential operation window of 0–1.8 V with flexible mechanical stability. This ASC device yielded a superior energy density of 53.7 W h kg−1 at a power density of 180 W kg−1 and a reasonable cycling life. Overall, this sustainable, low-cost and waste-derived porous carbon electrode material might be widely used in the field of energy storage, now and into the foreseeable future.

Porous nitrogen-doped hollow carbon spheres derived from polyaniline for high performance supercapacitors

2014 ◽  
Vol 2 (15) ◽  
pp. 5352-5357 ◽  
Author(s):  
Jinpeng Han ◽  
Guiyin Xu ◽  
Bing Ding ◽  
Jin Pan ◽  
Hui Dou ◽  
...  
Keyword(s):  
Porous Structure ◽  
High Performance ◽  
Nitrogen Doping ◽  
Electrode Materials ◽  
Carbon Spheres ◽  
Hierarchical Porous Structure ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

The porous nitrogen-doped hollow carbon spheres derived from polyaniline are promising electrode materials for high performance supercapacitors due to their hierarchical porous structure and nitrogen-doping.

Self-templating synthesis of silicon nanorods from natural sepiolite for high-performance lithium-ion battery anodes

2018 ◽  
Vol 6 (15) ◽  
pp. 6356-6362 ◽  
Author(s):  
Qingze Chen ◽  
Runliang Zhu ◽  
Shaohong Liu ◽  
Dingcai Wu ◽  
Haoyang Fu ◽  
...  
Keyword(s):  
Porous Structure ◽  
Lithium Ion Battery ◽  
High Performance ◽  
Synthesis Method ◽  
Lithium Ion ◽  
Hierarchical Porous Structure ◽  
One Dimensional ◽  
Hierarchical Porous ◽  
Templating Synthesis

One-dimensional silicon nanorods with a hierarchical porous structure were synthesized from natural sepiolite by a simple self-templating synthesis method.

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