Defect Emission Energy and Particle Size Efects in Fe:ZnO Nanospheres Used in Li?Ion Batteries as Anode
Yükleniyor...
Dosyalar
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Pure and Fe-doped ZnO (FexZnyV1−x−yO2) nanostructures with varying iron mole percentages of 3%, 4.5%, and 6% were
synthesized by co-precipitation without vacuum ambient. Structural, morphological, defect, and electrochemical properties, when serving as an anode in Li-ion batteries, were studied. All the samples have a wurtzite ZnO crystallinity, and a
slight shift from the x-ray difraction patterns of Fe:ZnO samples shows that Fe3+ ions were substituted by Zn2+ ions. As the
percentage of the Fe mole increases from 3% to 4.5%, the size of the particles decreases from 12 nm to 9 nm, but increases
to 14 nm with 6% Fe doping. Although all the samples have a spherical type, and porous surfaces are exhibited in the 4.5%
Fe:ZnO nanospheres. The emission bands originate due to energy levels generated by ZnO intrinsic defects in all the samples
with changing emission peaks by Fe doping. The 4.5% Fe:ZnO results substantially enhance the specifc capacity of 400
mAh g−1 during 100 cycles.
Açıklama
Anahtar Kelimeler
Metal Oxide, Co-precipitation, Energy storage, Li-ion battery
Kaynak
Journal of Electronic Materials
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
50
Sayı
11
Künye
Sarf, F., & Kızıl, H. (2021). Defect Emission Energy and Particle Size Effects in Fe:ZnO Nanospheres Used in Li-Ion Batteries as Anode. Journal of Electronic Materials, 50(11), 6475–6481. https://doi.org/10.1007/s11664-021-09191-1
