کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6608052 | 459535 | 2016 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of Electrochemical Properties by Freeze-dried Graphene Oxide via Glucose-assisted Reduction
ترجمه فارسی عنوان
افزایش خواص الکتروشیمیایی توسط اکسید گرافن فریز شده توسط کاهش گلوکز
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The re-stacking of reduced graphene oxide (rGO) is the main reason to decrease its surface area and the capacitance. A method to prevent graphene sheets from re-stacking is developed in this work by combining glucose filler with a drying process. The rGO/C composite is synthesized via a heat-dry (HD) or freeze-drying (FD) process separately and then thermal reduction under 700 °C. The rGO/C composites are characterized by XRD, SEM, TEM and FTIR. The interspace of the GO sheets increases as the glucose amount increases for the freeze-drying process and re-stacking could be reduced after thermal reduction. The capacitance is evaluated via the cyclic voltammetry method, which the rGO/C composite with freeze-drying and 1 wt% glucose addition (FD-1%) could deliver the highest capacitance 157.6 Fgâ1 at 5 mV sâ1 scanning rate. This method we developed provides a way to manipulate the interspace of GO sheet and improve the capacitive performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 197, 10 April 2016, Pages 146-151
Journal: Electrochimica Acta - Volume 197, 10 April 2016, Pages 146-151
نویسندگان
Ju-Hsiang Cheng, Yi-Hsiu Chen, Yun-Sheng Yeh, Sunny Hy, Liang-Ying Kuo, Bing-Joe Hwang,