scholarly journals A novel porous carbon material derived from the byproducts of bean curd stick manufacture for high-performance supercapacitor use

RSC Advances ◽  
2018 ◽  
Vol 8 (70) ◽  
pp. 39937-39947 ◽  
Author(s):  
Lulu Shi ◽  
Lihua Jin ◽  
Zheng Meng ◽  
Yanan Sun ◽  
Cong Li ◽  
...  
Keyword(s):  
Electrode Material ◽  
Porous Carbon ◽  
Carbon Material ◽  
High Performance ◽  
Porous Carbon Material

Preparation of heteroatom-functionalized porous carbon derived from byproducts of bean curd stick manufacture as an electrode material for high performance supercapacitors.

scholarly journals Synthesis of porous carbon material based on biomass derived from hibiscus sabdariffa fruits as active electrodes for high-performance symmetric supercapacitors

RSC Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 354-363
Author(s):  
Hamouda Adam Hamouda ◽  
Shuzhen Cui ◽  
Xiuwen Dai ◽  
Lele Xiao ◽  
Xuan Xie ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Porous Carbon ◽  
Carbon Material ◽  
High Performance ◽  
Porous Carbon Material ◽  
Hibiscus Sabdariffa ◽  
Biomass Waste ◽  
Renewable Energy Storage ◽  
Carbon Based

Carbon-based materials are manufactured as high-performance electrodes using biomass waste in the renewable energy storage field.

One-step Synthesis of O-self-doped Honeycomb-like Hierachically Porous Carbons for Supercapacitors

2021 ◽  
pp. 1-19
Author(s):  
Shiying Lin ◽  
Lanlan Mo ◽  
Feijun Wang
Keyword(s):  
Electrode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Electrode System ◽  
Porous Carbon Material ◽  
Hierarchical Porous ◽  
One Step ◽  
Porous Carbon Electrode

Abstract A facile and environmentally friendly approach to produce self-doped hierachically porous carbon as electrode material for high-performance supercapacitor was demonstrated. 3D honeycomb-like hierarchically porous carbon was successfully obtained by one-step carbonization and activation of sodium carboxymethyl cellulose (CMC) via K2CO3. With the optimized temperature of carbonization and activation, the porous carbon material achieved well-shaped hierarchically pores (micro-, meso and macropores) like a honeycomb, ultrahigh specific surface area (1666 m2·g-1), as well as highly O-self-doping (3.6 at.%), endowing an excellent electrochemical properties for the electrode in three-electrode system. The porous carbon electrode material delivered a high specific capacitance of 300.8 F·g-1 at 1 A·g-1, an eminent rate capability of 228.4 F·g-1 at the current density up to 20 A·g-1 and outstanding cycle stability of 94.3% retention after 10000 cycles. Therefore, the CMC derived hierarchical porous carbon activated by K2CO3 would have promising foreground in application of supercapacitors.

scholarly journals Digested sludge-derived three-dimensional hierarchical porous carbon for high-performance supercapacitor electrode

2018 ◽  
Vol 5 (4) ◽  
pp. 172456 ◽  
Author(s):  
Jia-Jia Zhang ◽  
Hao-Xiang Fan ◽  
Xiao-Hu Dai ◽  
Shi-Jie Yuan
Keyword(s):  
Porous Carbon ◽  
Carbon Material ◽  
High Performance ◽  
Three Dimensional ◽  
Value Added ◽  
Porous Carbon Material ◽  
Activation Process ◽  
Hierarchical Porous Carbon ◽  
Digested Sludge ◽  
Hierarchical Porous

Digested sludge, as the main by-product of the sewage sludge anaerobic digestion process, still contains considerable organic compounds. In this protocol, we report a facile method for preparing digested sludge-derived self-doped porous carbon material for high-performance supercapacitor electrodes via a sustainable pyrolysis/activation process. The obtained digested sludge-derived carbon material (HPDSC) exhibits versatile O-, N-doped hierarchical porous framework, high specific surface area (2103.6 m 2  g −1 ) and partial graphitization phase, which can facilitate ion transport, provide more storage sites for electrolyte ions and enhance the conductivity of active electrode materials. The HPDSC-based supercapacitor electrodes show favourable energy storage performance, with a specific capacitance of 245 F g −1 at 1.0 A g −1 in 0.5 M Na 2 SO 4 ; outstanding cycling stability, with 98.4% capacitance retention after 2000 cycles; and good rate performance (211 F g −1 at 11 A g −1 ). This work provides a unique self-doped three-dimensional hierarchical porous carbon material with a favourable charge storage capacity and at the same time finds a high value-added and environment-friendly strategy for disposal and recycling of digested sludge.

scholarly journals S-doped porous carbon anode with superior capacity for high-performance sodium storage

RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22663-22667
Author(s):  
Yaru Liang ◽  
Rutie Liu ◽  
Xiang Xiong
Keyword(s):  
Spray Drying ◽  
Porous Carbon ◽  
Carbon Material ◽  
High Performance ◽  
Carbon Anode ◽  
Porous Carbon Material ◽  
Storage Performance ◽  
Sulfur Doping ◽  
Sodium Storage

A novel S-doped porous carbon material with superior sodium storage performance was obtained through spray-drying and subsequent sulfur doping treatment.

Hierarchical porous structure carbon nanosheets derived from sodium lignosulfonate for high-performance supercapacitors

2020 ◽  
Vol 44 (48) ◽  
pp. 21271-21278
Author(s):  
Dichao Wu ◽  
Changzhou Chen ◽  
Jihui Li ◽  
Xiaopeng Jian ◽  
Ao Wang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Carbon Material ◽  
Lamellar Structure ◽  
High Performance ◽  
Porous Carbon Material ◽  
Two Dimensional ◽  
Hierarchical Porous Structure ◽  
Sodium Lignosulfonate ◽  
Carbon Nanosheets ◽  
Hierarchical Porous

Because of the special lamellar structure, numerous pores, and large effective specific surface area, the two-dimensional porous carbon material is very beneficial for the storage and transmission of energy.

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