scholarly journals A green approach to prepare hierarchical porous carbon nanofibers from coal for high-performance supercapacitors

RSC Advances ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 6184-6192 ◽  
Author(s):  
Fenglian Tong ◽  
Wei Jia ◽  
Yanliang Pan ◽  
Jixi Guo ◽  
Lili Ding ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
High Specific Capacitance ◽  
Hierarchical Porous Carbon ◽  
Green Method ◽  
Long Cycle Life ◽  
Green Approach ◽  
Hierarchical Porous

A green method is designed to obtain hierarchical porous carbon nanofibers from coal for supercapacitor electrodes with high specific capacitance and long cycle life.

scholarly journals Facile fabrication of hierarchical porous carbon for a high-performance electrochemical capacitor

RSC Advances ◽  
2017 ◽  
Vol 7 (73) ◽  
pp. 46329-46335 ◽  
Author(s):  
Guixiang Du ◽  
Qiuxiao Bian ◽  
Jingbo Zhang ◽  
Xinhui Yang
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Rate Capability ◽  
Electrochemical Capacitor ◽  
High Specific Capacitance ◽  
Cycling Performance ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Facile Fabrication ◽  
Rapid Pyrolysis

A facile and rapid pyrolysis method is developed for the synthesis of 3D hierarchical porous carbon, which exhibits a high specific capacitance, good rate capability and good cycling performance.

Thiourea-Induced N/S Dual-Doped Hierarchical Porous Carbon Nanofibers for High-Performance Lithium-Ion Capacitors

2020 ◽  
Vol 3 (2) ◽  
pp. 1653-1664 ◽  
Author(s):  
Ming Chen ◽  
TrungHieu Le ◽  
Yuanxiang Zhou ◽  
Feiyu Kang ◽  
Ying Yang
Keyword(s):  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
Lithium Ion ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous

scholarly journals Nitrogen-doped hierarchical porous CNF derived from fibrous structured hollow ZIF-8 for a high-performance supercapacitor electrode

RSC Advances ◽  
2019 ◽  
Vol 9 (69) ◽  
pp. 40636-40641 ◽  
Author(s):  
Hongjiao Nie ◽  
Kan Mi ◽  
Lanlan Song ◽  
Xiuwen Zheng
Keyword(s):  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
Hierarchical Porous Carbon ◽  
Supercapacitor Electrode ◽  
Supercapacitor Application ◽  
Nitrogen Doped ◽  
Hierarchical Porous

Hollow ZIF-8 shells were assembled into fibers to obtain nitrogen-doped hierarchical porous carbon nanofibers for excellent supercapacitor application.

scholarly journals Preparation of high conductivity hierarchical porous carbon based on sodium lignosulfonate with pre-crosslinking

BioResources ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. 8995-9012
Author(s):  
Yanjie Yi ◽  
Yi Hou ◽  
Youming Li
Keyword(s):  
Specific Capacitance ◽  
Porous Carbon ◽  
Electrode Materials ◽  
High Specific Capacitance ◽  
High Conductivity ◽  
Hierarchical Porous Carbon ◽  
Sodium Lignosulfonate ◽  
Paper Mills ◽  
The Sustainable Development ◽  
Hierarchical Porous

The electrode material plays a key role in the performance of a supercapacitor. This study reports a method to prepare high conductivity hierarchical porous carbon with pre-crosslinking based on sodium lignosulfonate, which usually is burned as a waste effluent in pulp and paper mills. Results indicate pre-crosslinking with glutaraldehyde and ethyleneimine polymer, activation with less potassium hydroxide KOH, and finally carbonization to form carbon materials of hyperbranched macromolecules with ultra-rich specific surface area of 2780 m2/g and reasonable pore size distribution. The prepared carbon material showed high specific capacitance and good electrochemical performance when used as electrode materials for supercapacitors. At 0.5 A/g, the specific capacitance was 305 F/g, and the specific capacitance decay was only 6.2%, even after 2500 consecutive charge/discharge cycles, which revealed the huge potential for the supercapacitor characteristics with long service life. The results provided a high-valued application of industrial waste, which is important to further the sustainable development of the national economy.

scholarly journals High performance hierarchical porous carbon derived from distinctive plant tissue for supercapacitor

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Jinxiao Li ◽  
Yang Gao ◽  
Kuihua Han ◽  
Jianhui Qi ◽  
Ming Li ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Current Density ◽  
Porous Carbon ◽  
High Performance ◽  
Initial Structure ◽  
Equivalent Series Resistance ◽  
Hierarchical Porous Carbon ◽  
Plant Materials ◽  
Hierarchical Porous ◽  
Electrical Double Layer Capacitance

AbstractIt is generally acknowledged that the activation method and component of the precursor are of great importance for making porous carbon. In this study, four plant materials belong to one genus were selected as optimized plant material to produce hierarchical porous carbon for supercapacitors, the influence of initial structure was discussed. All the produced porous carbons have large specific surface area (higher than 2342 m2 g−1), high microporosity (more than 57%), and high pore volume (larger than 1.32 cm3 g−1). All the samples show characteristic of electrical double layer capacitance, and the onion-based porous carbon obtain highest specific capacitance of 568 F g−1 at the current density of 0.1 A g−1. With the current density rising from 1 A g−1 to 50 A g−1, the specific capacitance only decreases for 20%. After 5000 cycles, all the samples show relatively high capacitance retention (up to 97%). Two-step acid pickling has washed most impurities and directly lead to small equivalent series resistance (lower than 0.2 Ω). The samples show high power density and energy density (71 W h kg−1@180 W kg−1, 210 kW kg−1@33 W h kg−1). This study open an avenue to create high-performance hierarchical porous carbon based on plant architecture.

Hierarchical porous carbon nanofibers as binder-free electrode for high-performance supercapacitor

2016 ◽  
Vol 196 ◽  
pp. 189-196 ◽  
Author(s):  
Lijuan Zhang ◽  
Yuanzhi Jiang ◽  
Liwei Wang ◽  
Cui Zhang ◽  
Shuangxi Liu
Keyword(s):  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Binder Free

scholarly journals High-Performance Hydrogen Storage Nanoparticles Inside Hierarchical Porous Carbon Nanofibers with Stable Cycling

2017 ◽  
Vol 9 (18) ◽  
pp. 15502-15509 ◽  
Author(s):  
Guanglin Xia ◽  
Xiaowei Chen ◽  
Yan Zhao ◽  
Xingguo Li ◽  
Zaiping Guo ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Carbon Nanofibers ◽  
Porous Carbon ◽  
High Performance ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous

Copolymer derived micro/meso-porous carbon nanofibers with vacancy-type defects for high-performance supercapacitors

2020 ◽  
Vol 8 (5) ◽  
pp. 2463-2471 ◽  
Author(s):  
Jiye Li ◽  
Weimiao Zhang ◽  
Xu Zhang ◽  
Liyao Huo ◽  
Jiayi Liang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Carbon Nanofibers ◽  
Electrode Material ◽  
Porous Carbon ◽  
High Performance ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Supercapacitor Electrode ◽  
Excellent Cycling Stability

Micro/meso-porous carbon nanofibers have been successfully prepared and directly adopted as a supercapacitor electrode material with high specific capacitance, area normalized capacitance and excellent cycling stability.

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