کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6604753 1424098 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved electrochemical performance of Li2ZnTi3O8 using carbon materials as loose and porous agent
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Improved electrochemical performance of Li2ZnTi3O8 using carbon materials as loose and porous agent
چکیده انگلیسی
Li2ZnTi3O8 (LZTO) was synthesized by solid-state reaction using TiO2-anatase, Li2CO3, Zn(CH3COO)2·2H2O as raw materials. Three well-designed modified samples including LZTO-K (keqin black), LZTO-M (carbon microspheres) and LZTO-S (super-P) were prepared by extra adding carbon materials as loose and porous agent in the synthesis process without any crystal structure change. Among the all samples, LZTO-M exhibits excellent electrochemical performances in terms of high capacities (209.6, 187.2, 178.0, 161.8, 154.4 mAh g−1 at current densities of 0.1, 0.5, 1.0, 2.0, 3.0 A g−1, respectively) after 100 circulations and shows remarkable stable cycling performance, retaining capacity of 133.6 mAh g−1 compared with that (82.6 mAh g−1) of LZTO over 500 cycles at 3.0 A g−1. The utilization of carbon microspheres not only reduces particle size of LZTO-M and makes particles well-distributed, but also promotes loose structure with uniform porous and increases the surface area.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 259, 1 January 2018, Pages 28-35
نویسندگان
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