کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6604227 | 1424093 | 2018 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-functional graphene/carbon nanotube aerogels for its applications in supercapacitor and direct methanol fuel cell
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Three-dimensional graphene/carbon nanotube (GR-CNTs) aerogels was fabricated by the freeze-drying process, in which polyvinyl alcohol (PVA) was empolyed as an organic binder. The electrochemical energy storage properties of aerogels were investigated using cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy tests, which indicated that GR-CNTs aerogels electrode possessed high specific capacitances of 375â¯F/g in 6â¯M KOH solution with a capacity retention of about 88% and 94.8% after 5000 cycles, respectively. Moreover, The GR-CNTs aerogels was also identified to be a support matrix for the decoration of ultrafine Pt nanoparticles. Noticeably, exceptional electrocatalytic properties including high activity, good antipoisoning capacity, and outstanding durability were achieved for the Pt/GR-CNTs catalyst due to its unique three-dimensional interconnected porous structure and high specific surface area.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 264, 20 February 2018, Pages 12-19
Journal: Electrochimica Acta - Volume 264, 20 February 2018, Pages 12-19
نویسندگان
Yang Zhou, XianChao Hu, Shengda Guo, Changlin Yu, Shengwen Zhong, Xianbin Liu,