کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6608556 | 459541 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
One-step synthesis of Ni3Sn2@reduced graphene oxide composite with enhanced electrochemical lithium storage properties
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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 one-step solvothermal method has been put forward to construct Ni3Sn2@reduced graphene oxide (Ni3Sn2@rGO) composite. The Ni3Sn2 alloys in the composite with regular quasi-spherical morphology and an average size of 216 nm are homogeneously encapsulated into rGO sheets. As a promising anode material for lithium-ion batteries (LIBs), the as-prepared Ni3Sn2@rGO composite exhibits a high initial discharge capacity of 1315 mAh gâ1 and reversible capacity of 554 mAh gâ1 after 200 cycles at a current density of 100 mA gâ1. Even at a high current density of 800 mA gâ1, a substantial discharge capacity of 422 mAh gâ1 is delivered. The excellent cycling stability and remarkable rate capability of the designed Ni3Sn2@rGO composite can be attributed to the synergistic effects between Ni3Sn2 alloy and rGO matrix, and the rational cooperative advantage of the ball-like alloy morphology and the buffering effects of the inert nickel matrix as well as the flexible rGO matrix.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 192, 20 February 2016, Pages 188-195
Journal: Electrochimica Acta - Volume 192, 20 February 2016, Pages 188-195
نویسندگان
Zheng Yi, Xin Tian, Qigang Han, Yong Cheng, Jianshe Lian, Yaoming Wu, Limin Wang,