کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
186274 459609 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly nanoporous carbon derived from potassium biphthalate by a template carbonization method
ترجمه فارسی عنوان
کربن بسیار نانوذرات حاصل از بیفلت پتاسیم با روش کربنیزه کردن قالب
کلمات کلیدی
پتاسیم بیفتالات، کربن سازی، قالب، کربن نانوپور سوپراسپتور
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• A direct carbonization method has been developed to prepare nanoporous carbon.
• Potassium biphthalate, zinc, magnesium, and aluminum metals are commercial available.
• The carbons have large BET surface areas and high total pore volumes.
• Two-electrode system and three-electrode system were implemented.

A simple but efficient template carbonization method has been implemented for the production of highly nanoporous carbon by the reaction of potassium biphthalate with zinc, magnesium, or aluminum metal. The mass ratio and carbonization temperature are pivotal factors influencing the structures of the carbons. It explicitly reveals that the carbons produced in the potassium biphthalate-zinc metal system exhibit superior porosities and better electrochemical performances. Taking the Zn-3:1-900 sample as an example, it has a large BET surface area of 1605.1 m2 g−1 and a high total pore volume of 1.18 cm3 g−1. A large specific capacitance of 338.2 F g−1 is achieved at a current density of 1 A g−1 and it can retain a 100.5 F g−1 even at a high current density up to 100 A g−1 when measured in a three-electrode system. It also exhibits a high energy density of 76.7 Wh kg−1 obtained in a two-electrode system. Furthermore, in the two kinds of electrode systems, all of the carbons display excellent cycling stabilities.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 125, 10 April 2014, Pages 652–658
نویسندگان
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