کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4767259 1424121 2017 26 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication and activation of carbon nanotube foam and its application in energy storage
ترجمه فارسی عنوان
ساخت و فعال سازی فوم نانولوله کربنی و کاربرد آن در ذخیره انرژی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
We have successfully prepared three dimensional carbon nanotube foams (CNTF) by a simple environmental-friendly method. However, the as-grown CNTF shows a high electrical conductivity but a reduced specific surface area which limits its application as electrode materials in energy storage devices. In this work, the as-grown CNTF has been activated by using certain concentration of KOH aqueous solution. The results indicate that activation can enlarge the specific surface area by producing new pores with sizes from micropore to macropore, but give no important change in shape and size of the CNTF. We take the activated CNTFs as electrodes for supercapacitors and lithium-ion batteries respectively, and find that activation can clearly enhance the specific capacities and rate properties due to the enhanced specific surface area and hierarchical porous structures. The activated three dimensional CNTF materials can also be used as supporters for other active materials indicating a potential application prospects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 236, 10 May 2017, Pages 343-350
نویسندگان
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