| Yazarlar |
Bhushan Patil
|
Doç. Dr. Bekir SATILMIŞ
Kırşehir Ahi Evran Üniversitesi, Türkiye |
|
Tamer Uyar
|
| Özet |
| Synthesis of nitrogen-doped carbon fibers (CF) has been proved to be one of the most promising oxygen reduction reaction (ORR) Catalysts which can replace the state-of-art Pt catalyst for non-noble metal-free light-weight devices. Polymer's of Intrinsic Microporosity (PIM-1) is soluble,in common organic solvents and can be tailored by functionalization owing to nitrile groups in the backbone. PIM-1 was functionalized to anode (hydrolyzed PIM-1), amine and amidoxime groups. The modified PIM-1s were electrospun into ultrafine fibers and pyrolyzed to obtain CF. The present article investigates the influence of different functional groups on the properties of,PIM-1 based CF and their nitrogen-doping. Particularly, their ORR performance has been evaluated. Interestingly, CF from hYdrolyzed PIM-1 have the highest pore volume with small pore size among the CF based on PIM-1, amine and amidoxime PIM-1. The amount of nitrogen-doping in these CF shows the trend according to the functional groups as PIM-1 > amine > amidoxime > amide. Among all these PIM-1 baed CF; CF from PIM-1 has the highest percentage of pyridinic and graphitic nitrogen, furthermore, electrocatalysis revealed that ORR processed through four-electron with the onset potential 985 mV vs. reversible hydrogen elictrode (RHE) which is comparable with the standard Pt/C catalysts. |
| Anahtar Kelimeler |
| Carbon nanofibers | Catalyst | Electrospinning | Oxygen reduction reaction | Polymers of intrinsic microporosity |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | JOURNAL OF POWER SOURCES |
| Dergi ISSN | 0378-7753 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Makale Dili | İngilizce |
| Basım Tarihi | 03-2020 |
| Cilt No | 451 |
| Sayı | 1 |
| Sayfalar | 227799 / 0 |
| Doi Numarası | 10.1016/j.jpowsour.2020.227799 |
| Makale Linki | https://www.sciencedirect.com/science/article/pii/S0378775320301026?via3Dihub |
| Atıf Sayıları | |
| WoS | 26 |
| SCOPUS | 28 |
| Google Scholar | 29 |
