Polyaniline-based Symmetric solid-State supercapacitor

  • سال انتشار: 1395
  • محل انتشار: دوازدهمین سمینار سالانه الکتروشیمی ایران
  • کد COI اختصاصی: ELECTROCHEMISTRY012_071
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 250
دانلود فایل این مقاله

نویسندگان

Mirghasem Hosseini

Electrochemistry Research Laboratory, Department of Physical Chemistry, Chemistry Faculty, University of Tabriz,Tabriz, Iran,

Elham Shahryari

Electrochemistry Research Laboratory, Department of Physical Chemistry, Chemistry Faculty, University of Tabriz,Tabriz, Iran,

چکیده

Supercapacitors, also known as ultracapacitors, are energy storage devices that can often be charged and discharged in seconds with extremely long cycle life [1, 2]. Supercapacitors are divided into two types: electrochemical double-layer capacitors (EDLCs) based on carbon electrodes that store and release energy by electrostatic charge separation at the electrode/electrolyte interface and pseudo-capacitors with certain metal oxides or conductingpolymers as the active electrode materials that associate with adsorption and surface redoxprocesses of the electroactive species [3]. Recently solid-state supercapacitors using a Nafion membrane as an electrolyte separator with the conductive composite electrodes have been studied [4]. In the present work, Nafion-based ionic polymer free metal nanocomposite (IPFMC) supercapacitor was fabricated. The suspension of graphene oxide/multiwalled carbon nanotube/PANI (GMP) was sprayed onto both sides of the Nafion membrane to complete the fabrication of the solid-state symmetric supercapacitor. Performance of the symmetric supercapacitor was investigated by Field emission scanning electron microscopy (FE-SEM) and Xray photoelectron spectroscopy (XPS). The electrochemical properties of symmetric solid-statesupercapacitor were investigated by cyclic voltammetry (CV), galvanostatic charge–discharge (CD) and electrochemical impedance spectroscopy (EIS) techniques in 0.5M Na2SO4. The specific capacitance of 383.25 F.g-1 (326 mF.cm-2) was obtained for the GMP in solid-state supercapacitorcell at a scan rate of 10 mV.s-1, respectively.

کلیدواژه ها

Supercapacitor, Polyaniline, Nafion, Grapheme oxide

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.