کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6465607 1422952 2017 8 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduced graphene oxide-wrapped pyrite as anode materials for Li-ion batteries with enhanced long-term performance under harsh operational environments
ترجمه فارسی عنوان
کاهش پیلیت اکسید گرافین گرافن به عنوان مواد آند برای باتری های لیتیوم یون با افزایش عملکرد بلند مدت در محیط های عملیاتی خشن
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


- A facile route to rGO wrapped cauliflower-like FeS2 microspheres has been provided.
- FeS2@rGO electrodes possessed outstanding performance under harsh environments.
- These attributes make FeS2@rGO particles promising candidate as anode materials.

Cauliflower-like FeS2 microspheres tightly wrapped by reduced graphene oxide (rGO-wrapped FeS2) have been synthesized by a facile and eco-friendly solution route. Self-assembled mesostructured FeS2 microspheres wrapped by rGO delivered excellent cycle performances, i.e. a remarkable reversible capacity of 1720 mAh g−1 at a current density of 0.2 A g−1 after 700 cycles at ambient temperature and an outstanding reversible capacity of 340 mAh g−1 at a current density of 5.0 A g−1 after 800 cycles as operated at an extreme temperature of 85 °C. All of these characteristics of rGO-wrapped FeS2 could be ascribed to artificially designed microstructure and gradual change of electrochemical reaction upon Li-cycling, making them promising anode materials for power batteries with ultra-long lifetimes and large energy density under harsh operational windows.

Cauliflower-like FeS2 microspheres tightly wrapped by reduced graphene oxide (FeS2@rGO) have been synthesized by a facile and eco-friendly solution reaction route. Self-assembled mesostructured FeS2 microspheres @rGO delivered excellent cycle stability, i.e. a remarkable reversible capacity of 1720 mAh g−1 at a current density of 0.2 A g−1 after 700 cycles at ambient temperature and an outstanding reversible capacity of 340 mAh g−1 at a current density of 5.0 A g−1 after 800 cycles as operated at an extreme temperature of 85 °C. All of these characteristics make FeS2 microspheres@rGO promising anode materials for LIBs with ultra-long lifetimes and large energy density.88

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 326, 15 October 2017, Pages 257-264
نویسندگان
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