| Yazarlar (10) |
Tülin Avcı Hansu
Türkiye |
|
R.R. Al-Samaraae
|
Doç. Dr. Muhammed Raşit ATELGE
Siirt Üniversitesi, Türkiye |
|
Mustafa Kaya
Siirt Üniversitesi, Türkiye |
|
Hilal Demir Kıvrak
Eskişehir Osmangazi Üniversitesi, Türkiye |
|
İsmail Böğrekci
Türkiye |
|
Yalçın Şevki Yıldız
Erciyes Üniversitesi, Türkiye |
|
Selahaddin Orhan Akansu
Erciyes Üniversitesi, Türkiye |
|
Sebahattin Ünalan
Erciyes Üniversitesi, Türkiye |
|
Abdulazız Atabanı
Türkiye |
| 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 |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Process Safety and Environmental Protection |
| Dergi ISSN | 0957-5820 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q1 |
| Makale Dili | İngilizce |
| Basım Tarihi | 11-2024 |
| Cilt No | 191 |
| Sayı | 1 |
| Sayfalar | 760 / 768 |
| Doi Numarası | 10.1016/j.psep.2024.08.093 |
| Makale Linki | http://dx.doi.org/10.1016/j.psep.2024.08.093 |
| Atıf Sayıları |
