Three-Dimensional Macroassembly of Sandwich-Like, Hierarchical, Porous Carbon/Graphene Nanosheets towards Ultralight, Superhigh Surface Area, Multifunctional Aerogels

2016 ◽  
Vol 22 (7) ◽  
pp. 2515-2524 ◽  
Author(s):  
Jiayi Zhu ◽  
Xi Yang ◽  
Zhibing Fu ◽  
Junhui He ◽  
Chaoyang Wang ◽  
...  
Keyword(s):  
Surface Area ◽  
Porous Carbon ◽  
Graphene Nanosheets ◽  
Three Dimensional ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous

Ultrahigh-surface-area hierarchical porous carbon from chitosan: acetic acid mediated efficient synthesis and its application in superior supercapacitors

2017 ◽  
Vol 5 (47) ◽  
pp. 24775-24781 ◽  
Author(s):  
Jianyu Huang ◽  
Yeru Liang ◽  
Hang Hu ◽  
Simin Liu ◽  
Yijin Cai ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Surface Area ◽  
Porous Carbon ◽  
Efficient Synthesis ◽  
Hierarchical Porous Carbon ◽  
Capacitive Properties ◽  
Hierarchical Porous

Acetic acid mediated efficient synthesis of ultrahigh-surface-area hierarchical porous carbon from chitosan with very attractive capacitive properties was reported.

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 Silkworm cocoon derived N, O-codoped hierarchical porous carbon with ultrahigh specific surface area for efficient capture of methylene blue with exceptionally high uptake: kinetics, isotherm, and thermodynamics

RSC Advances ◽  
2019 ◽  
Vol 9 (58) ◽  
pp. 33872-33882
Author(s):  
Genxing Zhu ◽  
Qi Liu ◽  
Fengyi Cao ◽  
Qi Qin ◽  
Mingli Jiao
Keyword(s):  
Methylene Blue ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
Uptake Kinetics ◽  
High Uptake ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Silkworm Cocoon

Silkworm cocoon derived N, O-HPC (SBET = 2270.19 m2 g−1) was synthesized, and demonstrated exceptionally high uptake of MB (2104.29 mg g−1).

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