| Yazarlar (4) |
Bhushan Patil
Bilkent Üniversitesi, Türkiye |
Doç. Dr. Bekir SAYGINER
Kırşehir Ahi Evran Üniversitesi, Türkiye |
|
Mohammad Aref Khalily
Bilkent Üniversitesi, Türkiye |
|
Tamer Uyar
Bilkent Üniversitesi, Türkiye |
| Özet |
| Portable and flexible energy devices demand lightweight and highly efficient catalytic materials for use in energy devices. An efficient water splitting electrocatalyst is considered an ideal future energy source. Well-aligned high-surface-area electrospun polymers of intrinsic microporosity (PIM-1)-based nitrogen-doped carbon nanofibers were prepared as a free-standing flexible electrode. A non-noble-metal catalyst NiOOH/Ni(OH)(2) was precisely deposited over flexible free-standing carbon nanofibers by using atomic layer deposition (ALD). The morphology, high surface area, nitrogen doping, and Ni states synergistically showed a low onset potential ((HER)=-40 and (OER)=290mV vs. reversible hydrogen electrode), small overpotential at (10) [oxygen evolution reaction (OER)=390.5mV and hydrogen evolution reaction (HER)=-147mV], excellent kinetics (Tafel slopes for OER=50mVdec(-1) and HER=41mVdec(-1)), and high stability (>16h) towards water splitting in an alkaline medium (0.1m KOH). The performance was comparable with that of state-of-the-art noble-metal catalysts (e.g., Ir/C, Ru/C for OER, and Pt/C for HER). Post-catalytic characterization with X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy further proved the durability of the electrode. This study provides insight into the design of 1D-aligned N-doped PIM-1 electrospun carbon nanofibers as a flexible and free-standing NiOOH/Ni(OH)(2) decorated electrode as a highly stable nanocatalyst for water splitting in an alkaline medium. |
| Anahtar Kelimeler |
| atomic layer deposition | carbon fibers | electrospinning | nickel | water splitting |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale |
| Dergi Adı | CHEMSUSCHEM |
| Dergi ISSN | 1864-5631 Wos Dergi Scopus Dergi |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q1 |
| Makale Dili | İngilizce |
| Basım Tarihi | 04-2019 |
| Cilt No | 12 |
| Sayı | 7 |
| Sayfalar | 1469 / 1477 |
| Doi Numarası | 10.1002/cssc.201802500 |
| Makale Linki | https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/cssc.201802500 |
| Atıf Sayıları | |
| WoS | 58 |
| SCOPUS | 60 |
| Google Scholar | 64 |
