Facile synthesis of accordion-like porous carbon from waste PET bottles-based MIL-53(Al)and its application for high-performance Zn-ion capacitor  

作　　者：Jiaxin Li Shuai Zhang Yumeng Hua Yichao Lin Xin Wen Ewa Mijowska Tao Tang Xuecheng Chen Rodney S.Ruoff 

机构地区：[1]Faculty of Chemical Technology and Engineering,West Pomeranian University of Technology,Piastow Ave.42,71-065,Szczecin,Poland [2]Key State Key Laboratory of Polymer Physics and Chemistry,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun,130022,China [3]School of Safety Engineering,China University of Mining and Technology,Xuzhou,221116,China [4]Institute of Advanced Electrical Materials,Qingdao University of Science and Technology,Qingdao,266042,China [5]Institute for Basic Science Center for Multiple Dimensional Carbon Materials,Ulsan,44919,Republic of Korea [6]Department of Chemistry,Ulsan National Institute of Science and Technology(UNIST),Ulsan,44919,Republic of Korea [7]Department of Materials Science and Engineering,Ulsan National Institute of Science and Technology(UNIST),Ulsan,44919,Republic of Korea [8]School of Energy and Chemical Engineering,Ulsan National Institute of Science and Technology(UNIST),Ulsan,44919,Republic of Korea

出　　处：《Green Energy & Environment》2024年第7期1138-1150,共13页绿色能源与环境（英文版）

基　　金：the financial support from the NCN,Poland,UMO-2020/39/B/ST8/02937 and NAWA,2020 PPN/BEK/2020/1/00129/ZAS/00001;support from the Institute for Basic Science(IBS-R019-D1)。

摘　　要：It is of great scientific and economic value to recycle waste poly(ethylene terephthalate)(PET)into high-value PET-based metal organic frameworks(MOFs)and further convert it into porous carbon for green energy storage applications.In the present study,a facile and costeffective hydrothermal process was developed to direct recycle waste PET bottles into MIL-53(Al)with a 100% conversation,then the MOFderived porous carbon was assembled into electrodes for high-performance supercapacitors.The results indicated that the as-synthesized carbon exhibited high SSA of 1712 m^(2)g^(-1)and unique accordion-like structure with hierarchical porosity.Benefit to these advantageous characters,the assembled three-electrode supercapacitor displayed high specific capacitances of 391 F g^(-1)at the current density of 0.5 A g^(-1)and good rate capability of 73.6% capacitance retention at 20 A g^(-1)in 6 mol L^(-1)KOH electrolyte.Furthermore,the assembled zinc ion capacitor still revealed outstanding capacitance of 335 F g^(-1)at 0.1 A g^(-1),excellent cycling stability of 92.2% capacitance retention after 10000 cycles and ultra-high energy density of 150.3 Wh kg^(-1)at power density of 90 W kg^(-1)in 3 mol L^(-1)ZnSO_(4)electrolyte.It is believed that the current work provides a facile and effective strategy to recycle PET waste into high-valuable MOF,and further expands the applications of MOF-derived carbons for high-performance energy storage devices,so it is conducive to both pollution alleviation and sustainable economic development.

关 键 词：PET RECYCLING Porous carbon SUPERCAPACITOR Energy storage 

分 类 号：TM53[电气工程—电器] X705[环境科学与工程—环境工程]