کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
188768 459666 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An environment-friendly route to synthesize reduced graphene oxide as a supercapacitor electrode material
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
An environment-friendly route to synthesize reduced graphene oxide as a supercapacitor electrode material
چکیده انگلیسی

A large-scale, environment-friendly method to produce water-soluble reduced graphene oxide by using glutathione as a reducing and stabilization agent has been developed. The results of UV–visible absorption spectroscopy, X-ray photoelectron spectroscopy, atomic force microscopy, and transmission electron microscopy indicate that graphene oxide is reduced to graphene nanosheets which are single-layers and exhibit good dispersion in water. A reaction mechanism is proposed. The electrochemical properties of the graphene nanosheets as electrode materials for supercapacitors are studied by cyclic voltammetry and galvanostatic charge/discharge tests. A maximum specific capacitance of 238 F g−1 in a 1 M H2SO4 electrolyte has been obtained. Meanwhile, the material shows excellent long-term cycle stability along with the retention of 97% for specific capacitance after 1000 cycle tests.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 69, 1 May 2012, Pages 364–370
نویسندگان
, , , , ,