کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7724948 | 1497836 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of the interfacial reaction on mesoporous RuO2 for next generation Li batteries
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enhancement of the interfacial reaction on mesoporous RuO2 for next generation Li batteries Enhancement of the interfacial reaction on mesoporous RuO2 for next generation Li batteries](/preview/png/7724948.png)
چکیده انگلیسی
In order to develop high energy density Li rechargeable batteries, nano-sized materials have attracted attention as the active materials. Mesoporous materials consist of the micrometre-sized particles, and they have high surface area due to their mesopore and thin wall thickness of framework. Here, we synthesize a highly ordered mesoporous RuO2 to investigate the effect that the mesoscopic structure has on the capacity and their corresponding reaction mechanism of Li rechargeable battery. The synthesized mesoporous RuO2 shows an initial discharge capacity of 1366â¯mAh gâ1 on mesoporous RuO2, which is higher than that of commercial RuO2. Our findings via In situ X-ray analysis techniques combined with electrochemical analysis demonstrate that the additional capacity of mesoporous RuO2 is resulted from the enhanced interfacial reaction between Ru metal and Li2O formed by conversion reaction of RuO2. Nano-size effects of mesoporous structure such as high surface area, easy electron transport, and small domain would enable to improve the interfacial reaction of highly ordered mesoporous RuO2. The understanding of this relationship between structural engineering and electrochemical properties provides the insight into development of high energy density anode materials in next generation Li rechargeable battery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 396, 31 August 2018, Pages 749-753
Journal: Journal of Power Sources - Volume 396, 31 August 2018, Pages 749-753
نویسندگان
Yunok Kim, Jeasang Yoon, Gwi Ok Park, Su Bin Park, Hyunchul Kim, Ji Man Kim, Won-Sub Yoon,