Investigation of a novel Defatted Spent Coffee Ground (DSCG)-supported Ni catalyst for fuel cell and supercapacitor applications
Yazarlar (10)
Doç. Dr. Tülin Avcı Hansu Siirt Üniversitesi, Türkiye
R. R. Al-Samaraae
Aydin Adnan Menderes University, Türkiye
Doç. Dr. Muhammed Raşit ATELGE Siirt Üniversitesi, Türkiye
Prof. Dr. Mustafa Kaya Siirt Üniversitesi, Türkiye
Prof. Dr. Hilal Demir Kıvrak Eskişehir Osmangazi Üniversitesi, Türkiye
Prof. Dr. Ismail Bogrekcı Aydin Adnan Menderes University, Türkiye
Prof. Dr. Yalçın Şevki Yıldız Erciyes Üniversitesi, Türkiye
S. Orhan Akansu
Erciyes Üniversitesi, Türkiye
Prof. Dr. Sebahattin Ünalan Erciyes Üniversitesi, Türkiye
A. E. Atabani
Erciyes Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Process Safety and Environmental Protection (Q1)
Dergi ISSN 0957-5820 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 11-2024
Cilt / Sayı / Sayfa 191 / 1 / 760–768 DOI 10.1016/j.psep.2024.08.093
Makale Linki http://dx.doi.org/10.1016/j.psep.2024.08.093
UAK Araştırma Alanları
Enerji Yakıtlar ve Yanma İçten Yanmalı Motorlar
Özet
With the increase in energy demand, a material that can be used in fuel cell applications has been developed for both energy storage and the use of alternative energy sources to fossil fuels. In this study, a new Defatted Spent Coffee Ground (DSCG)-based electrode material was synthesized for two different application areas. A new electrocatalyst synthesis was carried out by subjecting DSCG to chemical activation and carbonization processes. The glycerol electrooxidation performances of the catalysts synthesized at 10–50 % Ni loading rates were investigated by CV measurements. 30 % Ni-DSCG catalyst exhibited the highest catalytic activity with 3.290 mA/cm2.As a result of the electrochemical measurements, 30 % Ni-DSCG catalyst with the best catalytic performance was used as the supercapacitor electrode material. The electrochemical performances of the produced supercapacitor electrodes were tested at room temperature using galvanostatic charge-discharge (GCD), Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques, and the capacity and stability of the electrodes were calculated as a result of the findings. In the calculations, the energy and power density of the 30 % Ni-DSCG supercapacitor electrode were calculated as 22.897 Wh kg−1, 841.114 W kg−1, respectively. The supercapacitor electrode capacitance was found to be 50.48 F/g. Its cyclic capacity was found to be 90 %. It showed that the DSCG-based synthesized electrocatalyst could be a good option for energy storage technology as EDLC electrode material and fuel cell applications as anode catalyst due to its good conductivity, superior cyclic stability, environmental friendliness and low cost.
Anahtar Kelimeler
DSCG | Electrocatalyst | Electrooxidation | Supercapacitor