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.

Intrinsically microporous polymer-based hierarchical nanostructuring of electrodesvianonsolvent-induced phase separation for high-performance supercapacitors

2018 ◽  
Vol 6 (19) ◽  
pp. 8909-8915 ◽  
Author(s):  
Jun Woo Jeon ◽  
Jae Hee Han ◽  
Sung-Kon Kim ◽  
Dong-Gyun Kim ◽  
Yong Seok Kim ◽  
...  
Keyword(s):  
Phase Separation ◽  
High Performance ◽  
Porous Carbons ◽  
Hierarchically Porous ◽  
Microporous Polymer ◽  
Supercapacitor Performance

Hierarchically porous carbons derived from an intrinsically microporous polymerviaa nonsolvent-induced phase separation show outstanding supercapacitor performance.

Highly Porous Carbon Derived from Sunflower Seed Shell for Electrochemical Capacitor

2011 ◽  
Vol 287-290 ◽  
pp. 1420-1423 ◽  
Author(s):  
Wei Xing ◽  
Xiao Li ◽  
Xiu Li Gao ◽  
Shu Ping Zhuo
Keyword(s):  
Pore Structure ◽  
Electrode Material ◽  
Sunflower Seed ◽  
High Performance ◽  
Chemical Activation ◽  
Electrochemical Capacitor ◽  
Drain Current ◽  
Porous Carbons ◽  
Activation Temperature ◽  
Highly Porous

Highly porous carbons were prepared from sunflower seed shell (SSS) by chemical activation and used as electrode material for electrochemical double layer capacitor (EDLC). The surface area and pore structure of the porous carbons are characterized intensively using N2 adsorption technique. The results show that the pore-structure of the carbons is closely related to activation temperature. Electrochemical measurements show that the carbons have excellent capacitive behavior and high capacitance retention ratio at high drain current, which is due to that there are both abundant macroscopic pores and micropore surface in the texture of the carbons. More importantly, the capacitive performances of these carbons are much better than ordered mesoporous carbons, thus highlighting the success of preparing high performance electrode material for EDLC from SSS.

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.

Hierarchically porous activated carbons derived from Schefflera octophylla leaves for high performance supercapacitors

2019 ◽  
Vol 247 ◽  
pp. 102-105 ◽  
Author(s):  
Kai Yang ◽  
Changcheng Yu ◽  
Zhihao Yu ◽  
Min Zhu ◽  
Wenguang Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Activated Carbons ◽  
Hierarchically Porous

Hierarchical porous carbon derived from recycled waste filter paper as high-performance supercapacitor electrodes

RSC Advances ◽  
2015 ◽  
Vol 5 (88) ◽  
pp. 72019-72027 ◽  
Author(s):  
Binbin Chang ◽  
Yanzhen Guo ◽  
Yanchun Li ◽  
Baocheng Yang
Keyword(s):  
Filter Paper ◽  
Porous Carbon ◽  
High Performance ◽  
Chemical Activation ◽  
Carbon Precursor ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Recycled Waste

Hierarchical activated porous carbon (APC) was synthesized through convenient chemical activation with ZnCl2 using recycled waste filter paper as the carbon precursor.

One-step synthesis of hierarchically porous carbons for high-performance electric double layer supercapacitors

2016 ◽  
Vol 315 ◽  
pp. 120-126 ◽  
Author(s):  
Haitao Zhang ◽  
Lei Zhang ◽  
Jun Chen ◽  
Hai Su ◽  
Fangyan Liu ◽  
...  
Keyword(s):  
Double Layer ◽  
Electric Double Layer ◽  
High Performance ◽  
Porous Carbons ◽  
Hierarchically Porous ◽  
One Step

scholarly journals Review on Activated Carbons by Chemical Activation with FeCl3

2020 ◽  
Vol 6 (2) ◽  
pp. 21 ◽  
Author(s):  
Jorge Bedia ◽  
Manuel Peñas-Garzón ◽  
Almudena Gómez-Avilés ◽  
Juan J. Rodriguez ◽  
Carolina Belver
Keyword(s):  
Activated Carbons ◽  
Surface Acidity ◽  
Chemical Activation ◽  
Activation Mechanism ◽  
Carbon Precursor ◽  
Iron Species ◽  
Activation Temperature ◽  
Synthesis Conditions ◽  
Porous Texture ◽  
Graphitization Degree

This study reviews the most relevant results on the synthesis, characterization, and applications of activated carbons obtained by novel chemical activation with FeCl3. The text includes a description of the activation mechanism, which compromises three different stages: (1) intense de-polymerization of the carbon precursor (up to 300 °C), (2) devolatilization and formation of the inner porosity (between 300 and 700 °C), and (3) dehydrogenation of the fixed carbon structure (>700 °C). Among the different synthesis conditions, the activation temperature, and, to a lesser extent, the impregnation ratio (i.e., mass ratio of FeCl3 to carbon precursor), are the most relevant parameters controlling the final properties of the resulting activated carbons. The characteristics of the carbons in terms of porosity, surface chemistry, and magnetic properties are analyzed in detail. These carbons showed a well-developed porous texture mainly in the micropore size range, an acidic surface with an abundance of oxygen surface groups, and a superparamagnetic character due to the presence of well-distributed iron species. These properties convert these carbons into promising candidates for different applications. They are widely analyzed as adsorbents in aqueous phase applications due to their porosity, surface acidity, and ease of separation. The presence of stable and well-distributed iron species on the carbons’ surface makes them promising catalysts for different applications. Finally, the presence of iron compounds has been shown to improve the graphitization degree and conductivity of the carbons; these are consequently being analyzed in energy storage applications.

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