کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6604341 | 1424093 | 2018 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mesoporous perforated Co3O4 nanoparticles with a thin carbon layer for high performance Li-ion battery anodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A facile method for preparing mesoporous perforated Co3O4 nanoparticles with hollow channels and a thin carbon layer was newly designed and achieved with sacrificial carbon nanotube (CNT) templates. The threaded Co3O4 nanoparticles on the CNTs were fabricated through a hybridization process, and a subsequent calcination process produced mesoporous perforated Co3O4 nanoparticles. With a finely tuned calcination, CNTs were sacrificed to generate hollow channels in the Co3O4 nanoparticles and to provide a carbon source for the formation of a few nm-thick carbon layer on the surface of the Co3O4 nanoparticles simultaneously. The prepared mesoporous perforated Co3O4 nanoparticles with a robust electronic conductive layer enabled not only an enhanced electrochemical reactivity from the greatly increased contact area between the electrolyte and electrode but also a high electronic conductivity of the overall electrode so that excellent electrochemical performances (1115.1â¯mAâ¯hâ¯gâ1 after 100 cycles; 595.9â¯mAâ¯hâ¯gâ1 @ 5â¯C rate) were successfully achieved in the anode application of a lithium-ion battery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 264, 20 February 2018, Pages 376-385
Journal: Electrochimica Acta - Volume 264, 20 February 2018, Pages 376-385
نویسندگان
Ji Sun Park, Dong Ok Shin, Churl Seung Lee, Young-Gi Lee, Ju Young Kim, Kwang Man Kim, Kwonwoo Shin,