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Activated carbon prepared from waste tire pyrolysis carbon black via CO_(2)/KOH activation used as supercapacitor electrode

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Science China(Technological Sciences) 2022年第10期65卷 2337-2347页

作者： HOU ShengPing ZHANG Da XIE ZhiPeng KANG Yao TANG ZhengGang DAI YongNian LEI Yong CHEN Jian LIANG Feng Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunming 650093China Fachgebiet Angewandte Nanophysik Institut für Physik&ZMN MacroNano(ZIK)Technische Universität IlmenauIlmenau 98693Germany Department of Materials Science and Engineering Sichuan University of Science and EngineeringZigong 643000China State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Kunming University of Science and TechnologyKunming 650093China

As the quantity of waste tires increases,more pyrolysis carbon black(CBp),a type of low value-added carbon black,is being ***,the application of CBp has been ***,it is necessary to identify and expand applications of *** work focuses on the preparation of activated carbon(AC)from CBp using the physicochemical activation of carbon dioxide(CO_(2))and potassium hydroxide(KOH).Thereafter,AC is applied to the electrode of the electrical double-layer capacitor(EDLC).The AC prepared by CO_(2)/KOH activation exhibited a hierarchical pore *** specific surface area increased from 415 to 733 m^(2)g^(−1),and in combination with low ash content of 1.51%,ensured abundant ion diffusion channels and active sites to store *** EDLC comprising the AC(AC-2)electrode prepared by excitation of CO_(2)(300 sccm)and KOH had a reasonable gravimetric specific capacitance of 192 F g^(−1)at 0.5 A g^(−1),and exhibited a good rate capability of 73%at 50 A g^(−1)in a three-electrode ***,the EDLC device comprising the AC-2 electrode delivered excellent cycling stability(capacitance retention of 106%after 10000 cycles at 2 A g^(−1)in a two-electrode system).Furthermore,a symmetric supercapacitor based on an AC electrode that exhibits a supreme energy density of 4.7 Wh kg^(−1)and a maximum power density of 6362.6 W kg^(−1)is demonstrated.

关键词： waste tires pyrolysis carbon black CO_(2)/KOH activation activated carbon electrical double-layer capacitor

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Basic Properties of pyrolysis carbon black of Waste Tyres and Application of pyrolysis carbon black in Transition Layer Rubber of All Steel Radial Tire

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Research and Application of Materials Science 2020年第1期2卷 39-42页

作者： Qi LIU Hui LI Jian LI Shenzhou Tires in Ningxia PingLuo753400China China University of Mining and Technology Beijing 100039China Key Laboratory of Intelligent Control and Rehabilitation Technology of the Ministry of Civil Affairs National Research Center for Rehabilitation Technical AidsBeijing 100176China

The main chemical composition of pyrolysis carbon black of waste tires is C,O,Cu,Zn and so *** content of ash and fine powder in pyrolysis carbon black is high,and the 300%elongation stress is *** difference between pyrolysis carbon black and furnace black N326,which is commonly used in rubber,is obvious compared with chemical *** pyrolysis carbon black was used to replace furnace black N326 in the transition layer of all steel load Radial tire rubber through experimental *** was found that the compression heat generation and dynamic loss(Tanδ)of the blend rubber before and after aging were obviously reduced,the elongation at break and resilience increased,while the tensile stress and tear strength decreased by 100%and 300%,but the hardness and tensile strength changed little before and after *** to the latest raw material price calculation,15 used tire pyrolysis carbon black instead of furnace carbon black N326 used in all steel Radial tire transition layer rubber application,excluding labor costs,electricity and equipment depreciation,a ton of blended rubber saves about$22.86 in production costs.

关键词： waste tyre pyrolysis carbon black all steel radial truck tire the transition layer formula mixing rubber

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