کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1641361 1517212 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Superior capacitive performance of reduced graphene hydrogels via dimethyl ketoxime
ترجمه فارسی عنوان
عملکرد خازنی فوق العاده کاهش هیدروژل گرافن از طریق دی متیل کتوکسیم
کلمات کلیدی
مواد کربن، مواد متخلخل سه بعدی، دمتیل کتوکسیم، مخزن سوپر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Three-dimensional (3D) reduced graphene hydrogels (RGHs) have been prepared by using dimethyl ketoxime as reducing agents in aqueous solution of graphene oxide (GO) with ammonia. The structure and surface chemistry were analyzed by scanning electron microscopy, Raman, X-ray diffraction, and X-ray photoelectron spectroscopy. The capacitive performance of the RGHs materials are studied in 6 M KOH electrolyte. Benefitting from the 3D porous structures and heteroatom-doped polar pore surface, the as-prepared RGHs materials exhibit high specific capacitances up to 159.8, 215.1 and 163.4 F g−1 at 1 A g−1 for RGHs-1, RGHs-2 and RGHs-5, respectively. More importantly, the materials can maintain high capacitances of 95.6, 155.2 and 118.9 F g−1 at a very high current density of 20 A g−1, the retention rates are 59.8, 72.2 and 72.8% for RGHs-1, RGHs-2 and RGHs-5, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 176, 1 August 2016, Pages 189-193
نویسندگان
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