scholarly journals Introducing catalytic gasification into chemical activation for the conversion of natural coal into hierarchically porous carbons with broadened pore size for enhanced supercapacitive utilization

RSC Advances ◽  
2018 ◽  
Vol 8 (66) ◽  
pp. 37880-37889 ◽  
Author(s):  
Tong Pei ◽  
Fei Sun ◽  
Jihui Gao ◽  
Lijie Wang ◽  
Xinxin Pi ◽  
...  
Keyword(s):  
Pore Size ◽  
Porous Carbon ◽  
Chemical Activation ◽  
Porous Carbons ◽  
Catalytic Gasification ◽  
Hierarchically Porous ◽  
Natural Coal

A catalytic gasification mechanism is introduced to prepare natural coal derived hierarchically porous carbon exhibiting excellent supercapacitive performances.

CO2-Assisted synthesis of hierarchically porous carbon as a supercapacitor electrode and dye adsorbent

2019 ◽  
Vol 6 (5) ◽  
pp. 1141-1151 ◽  
Author(s):  
Mengnan Zhang ◽  
Yi Song ◽  
Wei Li ◽  
Xin Huang ◽  
Cheng Wang ◽  
...  
Keyword(s):  
Pore Size ◽  
Porous Carbon ◽  
Size Distributions ◽  
Porous Carbons ◽  
Supercapacitor Electrode ◽  
Hierarchically Porous ◽  
Pore Size Distributions

A facile and sustainable strategy was developed for the fabrication of hierarchically porous carbons with tunable pore size distributions and architectures.

scholarly journals Biomass-derived O, N-codoped hierarchically porous carbon prepared by black fungus and Hericium erinaceus for high performance supercapacitor

RSC Advances ◽  
2021 ◽  
Vol 11 (45) ◽  
pp. 27860-27867
Author(s):  
Xinxian Zhong ◽  
Quanyuan Mao ◽  
Zesheng Li ◽  
Zhigao Wu ◽  
Yatao Xie ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Porous Carbons ◽  
Active Materials ◽  
Hierarchically Porous ◽  
Hericium Erinaceus

Biomass-derived heteroatom self-doped porous carbons are expected to become ideal active materials for high performance supercapacitor.

scholarly journals Pore size dependent molecular adsorption of cationic dye in biomass derived hierarchically porous carbon

2017 ◽  
Vol 196 ◽  
pp. 168-177 ◽  
Author(s):  
Long Chen ◽  
Tuo Ji ◽  
Liwen Mu ◽  
Yijun Shi ◽  
Huaiyuan Wang ◽  
...  
Keyword(s):  
Pore Size ◽  
Porous Carbon ◽  
Molecular Adsorption ◽  
Cationic Dye ◽  
Hierarchically Porous ◽  
Size Dependent

Fungi-derived hierarchically porous carbons for high-performance supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (6) ◽  
pp. 4396-4403 ◽  
Author(s):  
Jiacheng Wang ◽  
Qian Liu
Keyword(s):  
High Performance ◽  
Activated Carbons ◽  
Chemical Activation ◽  
Organic Electrolyte ◽  
Carbon Precursor ◽  
Porous Carbons ◽  
Hierarchically Porous ◽  
Renewable Biomass ◽  
Supercapacitor Performance

Chemical activation of sustainable, renewable biomass fungi as the carbon precursor resulted in hierarchically porous activated carbons, demonstrating superior supercapacitor performance in organic electrolyte to commercially available carbons.

Fe–Nxmoiety-modified hierarchically porous carbons derived from porphyra for highly effective oxygen reduction reaction

2017 ◽  
Vol 5 (4) ◽  
pp. 1526-1532 ◽  
Author(s):  
Zhengping Zhang ◽  
Xinjin Gao ◽  
Meiling Dou ◽  
Jing Ji ◽  
Feng Wang
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Porous Carbons ◽  
Hierarchically Porous ◽  
Nitrogen Doped ◽  
Highly Effective ◽  
Excellent Catalytic Performance

Fe–Nxmoiety-modified nitrogen-doped hierarchically porous carbon, which is derived from porphyra, exhibits an excellent catalytic performance for oxygen reduction.

Synthesis and Characterization of Green Porous Carbons with Large Surface Area by Two Step Chemical Activation with KOH

2014 ◽  
Vol 67 (4) ◽  
Author(s):  
Noor Shawal Nasri ◽  
Mohammed Jibril ◽  
Muhammad Abbas Ahmad Zaini ◽  
Rahmat Mohsin ◽  
Hamza Usman Dadum ◽  
...  
Keyword(s):  
Surface Area ◽  
Porous Carbon ◽  
Pore Volume ◽  
Potassium Hydroxide ◽  
Chemical Activation ◽  
Bet Surface Area ◽  
Porous Carbons ◽  
Precursor Material ◽  
Proximate And Ultimate Analysis

Porous carbons were synthesized from coconut shell using chemical activation by potassium hydroxide (KOH). N2 adsorption isotherm analysis for BET surface area and pore volume of the synthesized porous carbon were carried out. The Langmuir surface area, BET surface area and pore volume are 1646 m2/g, 1353 m2/g and 0.6 cm3/g, respectively. From the FTIR analysis, hydroxyls, alkenes, carbonyls and aromatics functional groups were identified. The proximate and ultimate analysis shows high percentage of carbon and less ash content which indicates a good precursor material for porous carbon. The carbonization temperature and time were also varied to observe their effect on the yield of char, with carbonization at 7000C for 2 h having highest yield of 32%.

Hierarchically porous carbon derived from polymers and biomass: effect of interconnected pores on energy applications

2014 ◽  
Vol 7 (11) ◽  
pp. 3574-3592 ◽  
Author(s):  
Saikat Dutta ◽  
Asim Bhaumik ◽  
Kevin C.-W. Wu
Keyword(s):  
Porous Carbon ◽  
Porous Carbons ◽  
Hierarchically Porous ◽  
Energy Applications ◽  
Promising Strategy ◽  
Interconnected Pores

Access to hierarchically porous carbons from polymers and biopolymersviaa non-templating route has emerged as a promising strategy for a range of energy applications.

Nitrogen and phosphorus co-doped hierarchically porous carbons derived from cattle bones as efficient metal-free electrocatalysts for the oxygen reduction reaction

2017 ◽  
Vol 5 (46) ◽  
pp. 24329-24334 ◽  
Author(s):  
Yongxi Zan ◽  
Zhengping Zhang ◽  
Haijing Liu ◽  
Meiling Dou ◽  
Feng Wang
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Reduction Reaction ◽  
Porous Carbons ◽  
Nitrogen And Phosphorus ◽  
Hierarchically Porous ◽  
Metal Free ◽  
Co Doped

Nitrogen and phosphorus co-doped cattle-bone-derived hierarchically porous carbon metal-free electrocatalysts were synthesized exhibiting superior oxygen reduction performance than Pt/C.

scholarly journals A sustainable approach to hierarchically porous carbons from tannic acid and their utilization in supercapacitive energy storage systems

2019 ◽  
Vol 7 (23) ◽  
pp. 14280-14290 ◽  
Author(s):  
Noel Díez ◽  
Guillermo A. Ferrero ◽  
Marta Sevilla ◽  
Antonio B. Fuertes
Keyword(s):  
Tannic Acid ◽  
Storage Systems ◽  
Chemical Activation ◽  
High Surface ◽  
High Surface Area ◽  
High Current ◽  
Porous Carbons ◽  
Active Materials ◽  
Organic Electrolytes ◽  
Hierarchically Porous

We synthesized hierarchically porous carbons with a high surface area using a salt template-assisted chemical activation approach using tannic acid as the precursor. When tested as electrode active materials for supercapacitors, they exhibit a high capacitance in aqueous and organic electrolytes at high current rates.

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