Pyrolytic carbon black-derived porous carbon with spherical skeleton as recovered and enduring electrode material for supercapacitor

2021 ◽  
Vol 44 ◽  
pp. 103372
Author(s):  
Guosai Jiang ◽  
Jun Guo ◽  
Yanzhi Sun ◽  
Xiaoguang Liu ◽  
Junqing Pan
Keyword(s):  
Carbon Black ◽  
Electrode Material ◽  
Porous Carbon ◽  
Pyrolytic Carbon

Wet compounding with pyrolytic carbon black from waste tyre for manufacture of new tyre – A mini review

2021 ◽  
pp. 0734242X2110047
Author(s):  
Junqing Xu ◽  
Jiaxue Yu ◽  
Wenzhi He ◽  
Juwen Huang ◽  
Junshi Xu ◽  
...  
Keyword(s):  
Carbon Black ◽  
Pyrolytic Carbon ◽  
Research Progress ◽  
Rubber Matrix ◽  
Innovative Technology ◽  
Nano Materials ◽  
Natural Rubber Composites ◽  
Waste Tyres ◽  
Dry Mixing ◽  
Waste Tyre

Pyrolysis offers a more focused alternative to waste tyres treatment. Pyrolytic carbon black (CBp), the main product of waste tyre pyrolysis, and its modified species can be applied to tyre manufacturing realizing its high-value utilization. Modified pyrolytic carbon black/natural rubber composites prepared by a wet compounding (WC) and latex mixing process have become an innovative technology route for waste tyre remanufacturing. The main properties and applications of CBp reported in recent years are reviewed, and the main difficulties affecting its participation in tyre recycling are pointed out. The research progress of using WC technology to replace dry mixing manufacturing of new tyres is summarized. Through literature data and comparative studies, this paper points out that the characteristic of high ash content can be well utilized if CBp is applied to tyre manufacturing. This mini-review proposes a new method for high-value utilization of CBp. The composite mixing of CBp and carbon nano-materials under wet conditions is conducive to the realization of their good dispersion in the rubber matrix. This provides a new idea for customer resource integration and connection of industry development between the tyre production industry and waste tyre disposal management.

scholarly journals Upgrading pyrolytic residue from waste tires to commercial carbon black

2018 ◽  
Vol 36 (5) ◽  
pp. 436-444 ◽  
Author(s):  
Xue Zhang ◽  
Hengxiang Li ◽  
Qing Cao ◽  
Li’e Jin ◽  
Fumeng Wang
Keyword(s):  
Carbon Black ◽  
Value Added ◽  
Pyrolytic Carbon ◽  
Ultrasonic Waves ◽  
Added Value ◽  
Infrared Spectrometry ◽  
Raman Spectrometry ◽  
X Ray ◽  
Waste Tires ◽  
Commercial Carbon

The managing and recycling of waste tires has become a worldwide environmental challenge. Among the different disposal methods for waste tires, pyrolysis is regarded as a promising route. How to effectively enhance the added value of pyrolytic residue (PR) from waste tires is a matter of great concern. In this study, the PRs were treated with hydrochloric and hydrofluoric acids in turn under ultrasonic waves. The removal efficiency for the ash and sulfur was investigated. The pyrolytic carbon black (PCB) obtained after treating PR with acids was analyzed by X-ray fluorescence spectrophotometry, Fourier transform infrared spectrometry, X-ray diffractometry, laser Raman spectrometry, scanning electron microscopy, thermogravimetric (TG) analysis, and physisorption apparatus. The properties of PCB were compared with those of commercial carbon black (CCB) N326 and N339. Results showed PRs from waste tires were mainly composed of carbon, sulfur, and ash. The carbon in PCB was mainly from the CCB added during tire manufacture rather than from the pyrolysis of pure rubbers. The removal percentages for the ash and sulfur of PR are 98.33% (from 13.98 wt % down to 0.24 wt %) and 70.16% (from 1.81 wt % down to 0.54 wt %), respectively, in the entire process. The ash was mainly composed of metal oxides, sulfides, and silica. The surface properties, porosity, and morphology of the PCB were all close to those of N326. Therefore, PCB will be a potential alternative of N326 and reused in tire manufacture. This route successfully upgrades PR from waste tires to the high value-added CCB and greatly increases the overall efficiency of the waste tire pyrolysis industry.

One-step Synthesis of O-self-doped Honeycomb-like Hierachically Porous Carbons for Supercapacitors

2021 ◽  
pp. 1-19
Author(s):  
Shiying Lin ◽  
Lanlan Mo ◽  
Feijun Wang
Keyword(s):  
Electrode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Electrode System ◽  
Porous Carbon Material ◽  
Hierarchical Porous ◽  
One Step ◽  
Porous Carbon Electrode

Abstract A facile and environmentally friendly approach to produce self-doped hierachically porous carbon as electrode material for high-performance supercapacitor was demonstrated. 3D honeycomb-like hierarchically porous carbon was successfully obtained by one-step carbonization and activation of sodium carboxymethyl cellulose (CMC) via K2CO3. With the optimized temperature of carbonization and activation, the porous carbon material achieved well-shaped hierarchically pores (micro-, meso and macropores) like a honeycomb, ultrahigh specific surface area (1666 m2·g-1), as well as highly O-self-doping (3.6 at.%), endowing an excellent electrochemical properties for the electrode in three-electrode system. The porous carbon electrode material delivered a high specific capacitance of 300.8 F·g-1 at 1 A·g-1, an eminent rate capability of 228.4 F·g-1 at the current density up to 20 A·g-1 and outstanding cycle stability of 94.3% retention after 10000 cycles. Therefore, the CMC derived hierarchical porous carbon activated by K2CO3 would have promising foreground in application of supercapacitors.

scholarly journals Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material

RSC Advances ◽  
2014 ◽  
Vol 4 (66) ◽  
pp. 34739-34750 ◽  
Author(s):  
Alfin Kurniawan ◽  
L. K. Ong ◽  
Fredi Kurniawan ◽  
C. X. Lin ◽  
Felycia E. Soetaredjo ◽  
...  
Keyword(s):  
Electrode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
Supercapacitor Electrode ◽  
Cane Molasses ◽  
Electrochemical Application ◽  
Carbon Microfibers ◽  
First Time ◽  
Co Doped

For the first time, porous carbon microfibers co-doped with N/P/K were synthesized from cane molasses by combination of electrospinning and carbonization techniques and its electrochemical application to electrode materials for supercapacitors was investigated.

ZIF-derived porous carbon: a promising supercapacitor electrode material

2014 ◽  
Vol 2 (32) ◽  
pp. 12873 ◽  
Author(s):  
Peng Zhang ◽  
Fang Sun ◽  
Zhigang Shen ◽  
Dapeng Cao
Keyword(s):  
Electrode Material ◽  
Porous Carbon ◽  
Supercapacitor Electrode
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