Fabrication of cu based metal-organic framework / graphene Nanocomposite and study electrochemical performance in supercapacitors
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
High conductivity and high level of electrolyte availability are the main requirements of active materials used in supercapacitors (SCs) to achieve high electrochemical efficiency. In recent years, metal-organic frameworks (MOFs) have been used as electrode materials for SCs due to their suitability of porosity and high surface area. However, using single-component MOFs in supercapacitors results in poor electrical conductivity, insufficient stability, and poor mechanical properties, and neutralize the effect of high capacity and efficient performance. In this paper, using a hydrothermal synthesis method, Cu-based MOFs were fabricated and graphene was added during synthesis to enhance the conductivity of these materials. To investigate the structure of nanocomposites were used XRD, FTIR, and FESEM analyze. To investigate the electrochemical behavior of electrodes, cyclic voltammetry, electrochemical impedance and repeatability behavior were performed. The Cu based MOFs had a capacity of 372 F.g-1, while its composite capacity with graphene is 570 F.g-1. In these composites, graphene enhances electrical conductivity, porosity accessibility, and charge storage through a non-Faradic mechanism and metal-organic frameworks increase the total capacity with high porosity, porosity adjustable, and charge storage through the Faradic Mechanism.
Keywords:
Language:
Persian
Published:
Iranian Journal of Ceramic Science & Engineering, Volume:8 Issue: 1, 2019
Pages:
27 to 35
magiran.com/p2012985
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!