Synthesis of hierarchical porous carbons for supercapacitors from coal tar pitch with nano-Fe2O3 as template and activation agent coupled with KOH activation

2013 ◽  
Vol 1 (33) ◽  
pp. 9440 ◽  
Author(s):  
Xiaojun He ◽  
Nan Zhao ◽  
Jieshan Qiu ◽  
Nan Xiao ◽  
Moxin Yu ◽  
...  
Keyword(s):  
Coal Tar ◽  
Coal Tar Pitch ◽  
Koh Activation ◽  
Porous Carbons ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons

Template-free preparation of layer-stacked hierarchical porous carbons from coal tar pitch for high performance all-solid-state supercapacitors

2017 ◽  
Vol 5 (30) ◽  
pp. 15869-15878 ◽  
Author(s):  
Taotao Guan ◽  
Kaixi Li ◽  
Jianghong Zhao ◽  
Rijie Zhao ◽  
Guoli Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Coal Tar ◽  
Coal Tar Pitch ◽  
Porous Carbons ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Template Free

Template-free preparation of layer-stacked hierarchical porous carbons from cheap pitch precursors for high-performance all-solid-state supercapacitors.

scholarly journals Dicarbonyl-tuned microstructures of hierarchical porous carbons derived from coal-tar pitch for supercapacitor electrodes

RSC Advances ◽  
2019 ◽  
Vol 9 (35) ◽  
pp. 20019-20028 ◽  
Author(s):  
Haiyang Wang ◽  
Hongzhe Zhu ◽  
Shoukai Wang ◽  
Debang Qi ◽  
Kaihua Shen
Keyword(s):  
Coal Tar ◽  
Cycling Stability ◽  
Coal Tar Pitch ◽  
Porous Carbons ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Excellent Cycling Stability

The hierarchical porous carbons have an excellent cycling stability with a capacitance retention of 92.9% after 10 000 cycles.

Coal tar pitch-based hierarchical porous carbons prepared in molten salt for supercapacitors

2021 ◽  
pp. 124491
Author(s):  
Huichao Liu ◽  
Hua Song ◽  
Wenjing Hou ◽  
Yunzhen Chang ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Molten Salt ◽  
Coal Tar ◽  
Coal Tar Pitch ◽  
Porous Carbons ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons

scholarly journals Hierarchical porous carbons from carboxylated coal-tar pitch functional poly(acrylic acid) hydrogel networks for supercapacitor electrodes

RSC Advances ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 1095-1103
Author(s):  
Haiyang Wang ◽  
Chuan Zhou ◽  
Hongzhe Zhu ◽  
Yixuan Li ◽  
Shoukai Wang ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Specific Capacitance ◽  
Coal Tar ◽  
High Specific Capacitance ◽  
Coal Tar Pitch ◽  
Porous Carbons ◽  
Supercapacitor Electrode ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Poly Acrylic Acid

As a supercapacitor electrode exhibit a high specific capacitance of 292 F g−1 at 1.0 A g−1.

Fabrication of nitrogen-doped hierarchical porous carbons from Sargassum as advanced electrode materials for supercapacitors

2021 ◽  
Author(s):  
Feiqiang Guo ◽  
Yinbo Zhan ◽  
Xiaopeng Jia ◽  
Huiming Zhou ◽  
Shuang Liang ◽  
...  
Keyword(s):  
High Performance ◽  
Nitrogen Doping ◽  
Electrode Materials ◽  
Three Dimensional ◽  
Koh Activation ◽  
Porous Carbons ◽  
Nitrogen Doped ◽  
Novel Approach ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons

Using Sargassum as the precursor, a novel approach was developed to synthesize three-dimensional porous carbons as high-performance electrode materials for supercapacitors via KOH activation and subsequent nitrogen-doping employing melamine as...

scholarly journals Facile fabrication of hierarchical porous carbon based on extract separated from coal with outstanding electrochemical performance

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 33843-33850 ◽  
Author(s):  
Peng Chang ◽  
Zhihong Qin
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
Low Cost ◽  
Koh Activation ◽  
Porous Carbons ◽  
Hierarchical Porous Carbon ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons ◽  
Facile Fabrication

Herein, a novel kind of hierarchical porous carbons were directly synthesized from low-cost extracts of coal by coupling nano MgO template with in situ KOH activation strategy.

scholarly journals Construction of S-doped hierarchical porous carbons by acid-free treatment strategy for supercapacitors

2021 ◽  
Vol 228 ◽  
pp. 01007
Author(s):  
Lei Yang ◽  
BiYu Jin ◽  
Hong Qiang Li ◽  
Ting Ting Wu ◽  
Xiao Jun He
Keyword(s):  
Electrode Materials ◽  
Coal Tar ◽  
High Specific Capacitance ◽  
Porous Carbons ◽  
Energy Storage Devices ◽  
Supercapacitor Electrode ◽  
Alternative Technologies ◽  
Hierarchical Pores ◽  
Hierarchical Porous ◽  
Hierarchical Porous Carbons

The pollution from acid treatment process in the preparation process of hierarchical porous carbons is a substantial challenge for industrial application of supercapacitors (SCs), which necessitates the development of green alternative technologies. In this work, S-doped hierarchical porous carbons (S-HPCs) are prepared from cheap coal tar pitch by a less harmful in situ KHCO3 activation strategy. The sample obtained at 800°C (S-HPC800) possesses 3D framework structure with hierarchical pores, large specific surface area (1485 m2 g-1) and O, S-containing functional groups. Due to these synergistic characteristics, SHPC800 as supercapacitor electrode exhibits high specific capacitance of 246 F g-1 at 0.1 A g-1 with a capacitance retention of 68.3% at 40 A g-1 and excellent cycle stability with 96.7% capacitance retention after 10, 000 charge-discharge cycles. This work provides an environmentally friendly approach to prepare advanced carbon-based electrode materials from industrial by-products for energy storage devices.

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