کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8948435 | 1645668 | 2018 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancing the lithium storage capabilities of TiO2 nanoparticles using delaminated MXene supports
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
MXenes, an emerging family of two-dimensional materials, were promising electrode materials due to their excellent electronic conductivity and hydrophilicity. MXenes exhibit extraordinary rate performance and cycling stability when serving as the anode materials for Li-ion batteries, but they have relatively low capacities. We thus prepared Ti3C2Tx/TiO2 composites using a simple route to coat TiO2 nanoparticles onto the delaminated few-layered MXenes, which functioned as spacers in the composite to suppress the restacking of MXene layers. The sample demonstrated excellent performance in the galvanostatic charge-discharge test, where a reversible capacity of 143â¯mAâ¯hâ¯gâ1 could still be maintained after 200 cycles at 0.5â¯Aâ¯gâ1 and a distinct plateau region could be clearly observed in the charge-discharge profiles. Density Theory Function calculation revealed that the hybridization of few-layered MXene was able to improve the structural stability of the composite during the insertion/de-insertion of Li atoms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 15, 15 October 2018, Pages 17660-17666
Journal: Ceramics International - Volume 44, Issue 15, 15 October 2018, Pages 17660-17666
نویسندگان
Shuhao Xiao, Xiaoqiang Zhang, Junwei Zhang, Shiming Wu, Jin Wang, Jun Song Chen, Tingshuai Li,