Przeglądaj wg Autor "Chen, Xuecheng"

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  • Miniatura
    PozycjaOpen Access
    Bottom up approach of metal assisted electrochemical exfoliation of boron towards borophene
    (Springer Nature, 2022-09-20) Sielicki, Krzysztof; Maślana, Klaudia; Chen, Xuecheng; Mijowska, Ewa; Faculty of Chemical Technology and Engineering, Nanomaterials Physicochemistry Department, West Pomeranian University of Technology, Piastow Ave. 42, 71-065, Szczecin, Poland
    Electrochemical exfoliation of nonconductive boron to few-layered borophene is reported. This unique effect is achieved via the incorporation of bulk boron into metal mesh inducing electrical conductivity and opening a venue for borophene fabrication via this feasible strategy. The experiments were conducted in various electrolytes providing a powerful tool to fabricate borophene flakes with a thickness of ~ 3–6 nm with different phases. The mechanism of electrochemical exfoliation of boron is also revealed and discussed. Therefore, the proposed methodology can serve as a new tool for bulk scale fabrication of few-layered borophene and speed up the development of borophene-related research and its potential application.
  • Miniatura
    PozycjaOpen Access
    Facile synthesis of accordion-like porous carbon from waste PET bottles-based MIL-53(Al) and its application for high-performance Zn-ion capacitor
    (KeAi Chinese Roots Global Impact, 2023) Li, Jiaxin; Zhang, Shuai; Hua, Yumeng; Lin, Yichao; Wen, Xin; Mijowska, Ewa; Tang, Tao; Chen, Xuecheng; Ruoff, Rodney; Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Piastów Ave. 42, 71-065, Szczecin, Poland; Key State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou, 221116, China; Institute of Advanced Electrical Materials, Qingdao University of Science and Technology, Qingdao, 266042, China; Institute for Basic Science Center for Multiple Dimensional Carbon Materials, Ulsan, 44919, Republic of Korea; Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea; Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea; School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea; Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydział Technologii i Inżynierii Chemicznej
    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 cost-effective hydrothermal process was developed to direct recycle waste PET bottles into MIL-53(Al) with a 100% conversation, then the MOF-derived porous carbon was assembled into electrodes for high-performance supercapacitors. The results indicated that the as-synthesized carbon exhibited high SSA of 1712 m2 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 6M 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 10 000 cycles and ultra-high energy density of 150.3 Wh kg−1 at power density of 90 W kg−1 in 3M ZnSO4 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.
  • Miniatura
    PozycjaOpen Access
    Recycling of Plastic Wastes for the Mass Production of Yolk−Shell-Nanostructured Co3O4@C for Lithium-Ion Batteries
    (ACS Publications, 2023) Li, Jiaxin; Dou, Fei; Gong, Jiang; Gao, Yanshen; Hua, Yumeng; Sielicki, Krzysztof; Zhang, Dengsong; Mijowska, Ewa; Chen, Xuecheng; Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin 71-065, Poland; School of Materials Science and Engineering and Research Center of Nano Science and Technology, Shanghai University, Baoshan, Shanghai 200444, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Hongshan, Wuhan; School of Environment and Chemical Engineering, Shenyang University of Technology, Shenyang 110870, China; Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydział Technologii i Inżynierii Chemicznej
    Facing the ever-increasing production of municipal plastics, great efforts have been made to recycle plastic waste into high value-added products. As the main components of plastic wastes, PP, PE and PS are uncharred polymers, which are hard to be carbonized under normal conditions. To address this issue, transition metal catalysts (Co3O4) were introduced to carbonize the plastic waste with high carbon yields. Herein, the mixed waste plastics (PP/PE/PS) were carbonized into yolk-shell structured Co3O4@carbon nanomaterials with high yield of 49 wt%. A high capacity of 1066 mAh g-1 at 0.1 A g-1 after 100 cycles in lithium-ion batteries. Moreover, the galvanostatic intermittent titration technique (GITT) results estimated that the YSS Co3O4@C possessed a higher Li+ diffusion coefficient, ensuring an improved cycling stability and rate performance. The present strategy not only provides a potential approach for recycling waste plastics into high-value carbon materials, but also shows the possibility for the mass production of high-performance nanosized anode materials for LIBs in a commercial way.
  • Miniatura
    PozycjaEmbargo
    Ultra-stable sandwich shaped flexible MXene/CNT@Ni films for high performance supercapacitor
    (Elsevier, 2023) Li, Shiyun; Zhang, Qiaoyu; Liu, Lina; Wang, Jiangang; Zhang, Ling; Shi, Minjie; Chen, Xuecheng; School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China; Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Piastów Ave. 42, 71-065 Szczecin, Poland; Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydział Technologii i Inżynierii Chemicznej
    MXene exhibits high volume capacity, but poor flexibility and mechanical properties have seriously limited its further applications. To address this issue, a sandwich shaped flexible MXene/CNTs@Ni film has been fabricated via a simple filtration approach, wherein the nickel-electroless plating on CNTs (CNTs@Ni) are utilized as the effective interlayer spacers of MXene nanosheets to stabilize their layer structures. In addition, the optimized MXene/CNTs@Ni film electrode as a binder-free and self-supported electrode exhibits robust mechanical stability and impressive electrochemical properties, especially with a high specific capacitance of 990.8 F cm−3, about 1.4 times and 2.4 times higher than that of MXene/CNTs film electrode and pristine MXene film electrode, respectively. A flexible symmetrical supercapacitor (FSMS) was constructed based on MXene/CNTs@Ni film. Notably, the FSMS owns a high energy density of 14.5 Wh kg−1, a high power density of 2571.4 W kg−1, and a good cycling stability, suggesting its potential application in portable energy technologies.