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Zhen Li,Yilong Gao,Jianxiang Wu,Wei Zhang,Yueyue Tan,Bohejin Tang 대한금속·재료학회 2016 ELECTRONIC MATERIALS LETTERS Vol.12 No.5
Ni-B/Zeolitic Imidazolate Frameworks-8 (Ni-B/ZIF-8) is synthesizedvia a series of solvothermal, incipient wetness impregnation andchemical reduction methods. The ZIF-8 serves as the host for thegrowth of Ni-B forming a Ni-B/ZIF-8 composite. Characterizationby X-ray diffraction and Transmission electron microscope revealsthe dispersion of Ni-B in ZIF-8. As electrode materials forsupercapacitors, ZIF-8, Ni-B and Ni-B/ZIF-8 electrodes exhibitspecific capacitances of 147, 563 and 866 F g−1, respectively at ascan rate of 5 mV s−1 and good stability over 500 cycles. Inparticular, Ni-B/ZIF-8 is a promising material for supercapacitors.
Exploring precise deposition and influence mechanism for micro-scale serpentine structure fiber
Wang, Han,Ou, Weicheng,Zhong, Huiyu,He, Jingfan,Wang, Zuyong,Cai, Nian,Chen, XinDu,Xue, Zengxi,Liao, Jianxiang,Zhan, Daohua,Yao, Jingsong,Wu, Peixuan Techno-Press 2022 Advances in nano research Vol.12 No.2
Micro-scale serpentine structure fibers are widely used as flexible sensor in the manufacturing of micro-nano flexible electronic devices because of their outstanding non-linear mechanical properties and organizational flexibility. The use of melt electrowriting (MEW) technology, combined with the axial bending effect of the Taylor cone jet in the process, can achieve the micro-scale serpentine structure fibers. Due to the interference of the process parameters, it is still challenging to achieve the precise deposition of micro-scale and high-consistency serpentine structure fibers. In this paper, the micro-scale serpentine structure fiber is produced by MEW combined with axial bending effect. Based on the controlled deposition of MEW, applied voltage, collector speed, nozzle height and nozzle diameter are adjusted to achieve the precise deposition of micro-scale serpentine structure fibers with different morphologies in a single motion dimension. Finally, the influence mechanism of the above four parameters on the precise deposition of micro-scale serpentine fibers is explored.