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Title: NiFeRu layered double hydroxide and its derivatives supported on graphite foam as binder-free cathode for nonaqueous Li-O2 batteries
Authors: Song, Ming
Tan, Hua
Tian, Lin
Li, Jing
Xu, Yan
Shi, Liluo
Sun, Limei
Zhuang, Wenchang
Du, Xihua
Keywords: Science::Chemistry
Issue Date: 2020
Source: Song, M., Tan, H., Tian, L., Li, J., Xu, Y., Shi, L., . . . Du, X. (2020). NiFeRu layered double hydroxide and its derivatives supported on graphite foam as binder-free cathode for nonaqueous Li-O2 batteries. Frontiers in Energy Research, 8, 612093-. doi:10.3389/fenrg.2020.612093
Journal: Frontiers in Energy Research
Abstract: Li-O2 batteries (LOBs) generally referred as Li-air batteries (LABs) potentially have a high specific capacity among all kinds of metal-ion batteries. However, it suffers severely from sluggish discharge/charge kinetics. A binder-free integrated cathode is fabricated which contains NiFeRu layered double hydroxide (NiFeRu LDH) nanosheets grown on a 3D conductive graphite foam (NiFeRu LDH@GF) in this work. This integrated 3D cathode exhibits a specific capacity of 3,085 mAh g−1 and a cycle life of 46. The electrochemical performances of NiFeRu LDH derived metal oxides (DMO@GF) by calcining NiFeRu LDH@GF at 350°C, 450°C, and 550°C are also been investigated. The 450°C obtained DMO@GF (450-DMO@GF) exhibits the highest catalytic activity for oxygen reduction/evolution reaction. The unique floccule-like and cross-connected structure of the 450-DMO@GF and its low charge transfer resistance are responsible for the outstanding electrochemical performance.
ISSN: 2296-598X
DOI: 10.3389/fenrg.2020.612093
Rights: © 2020 Song, Tan, Tian, Li, Xu, Shi, Sun, Zhuang and Du. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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