کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6608239 459538 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Uniform Ultrasmall Manganese Monoxide Nanoparticle/Carbon Nanocomposite as a High-Performance Anode for Lithium Storage
ترجمه فارسی عنوان
نانوکامپوزیت منوکسید منگنز یکنواخت به عنوان یک آنودایشی با عملکرد بالا برای ذخیره سازی لیتیم
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
In this study, uniformly dispersed MnO@C nanocomposite with an average MnO particle size of 10 nm is synthesized via a simple wet-chemical/carbonization method. In the MnO@C nanocomposite, ultrasmall MnO nanoparticles are homogeneously coated with carbon layers. As an anode material for lithium ion batteries (LIBs), this nanocomposite shows significantly enhanced electrochemical performances compared with the non-carbon coated material due to the conductive carbon layer, which provides an ideal conductive matrix for electron/ion transfer and a buffer layer to accommodate the MnO expansion during lithiation process. As a result, the MnO@C nanocomposite exhibits a high reversible capacity of ∼750 mAh/g over 600 cycles at a current density of 0.7 A/g and a high-rate capability of ∼340 mAh/g even at 2.1 A/g, which are among the best reported electrochemical performances for MnO-based materials thus far, demonstrating its potential application in LIBs with long cycling life and high power density.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 196, 1 April 2016, Pages 634-641
نویسندگان
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