scholarly journals Porous Carbon Material based on Biomass Prepared by MgO Template Method and ZnCl2 Activation Method as Electrode for High Performance Supercapacitor

2019 ◽  
pp. 1-14 ◽  
Author(s):  
Qingyang Sun ◽  
Keyword(s):  
Porous Carbon ◽  
Carbon Material ◽  
High Performance ◽  
Activation Method ◽  
Template Method ◽  
Porous Carbon Material ◽  
Zncl2 Activation

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.

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.

scholarly journals Sequential Production of Levulinic Acid and Porous Carbon Material from Cellulose

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1408 ◽  
Author(s):  
Shimin Kang ◽  
Jiaming Pan ◽  
Guoting Gu ◽  
Chong Wang ◽  
Zepan Wang ◽  
...  
Keyword(s):  
Formic Acid ◽  
Adsorption Capacity ◽  
Porous Carbon ◽  
Carbon Material ◽  
Levulinic Acid ◽  
Total Carbon ◽  
Porous Carbon Material ◽  
Solid Residue ◽  
Phenol Adsorption ◽  
Zncl2 Activation

A sequential production of levulinic acid (LA) and porous carbon material (CM) from cellulose was conducted by a two-step process. The cellulose was first acid hydrolyzed, and the preferred reaction conditions required a severity factor of 4.0–4.5, in which the yields of LA, formic acid, and solid residue were 38 ± 3 wt%, 17 ± 3 wt%, and 15 ± 3 wt%, respectively. The solid residue was further used for CM preparation through pyrolysis, with or without ZnCl2 activation. The ZnCl2 activation promoted the formation of CMs with improved thermal stability, high surface area (1184–2510 m2/g), and excellent phenol adsorption capacity (136–172 mg/g). The used CM can be easily regenerated by a simple methanol Soxhlet extraction process, and a comparable phenol adsorption capacity of 97 mg/g was maintained for the 5th reusing. Finally, 100 g cellulose produced 40.5 g LA, 18.9 g formic acid and 8.5 g porous CM, with a total carbon utilization ratio reaching 74.4%.

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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