Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/106599
Title: | Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode | Authors: | Zhang, Wenyu Zhu, Jixin Ang, Huixiang Wang, Haibo Tan, Hui Teng Yang, Dan Xu, Chen Xiao, Ni Li, Bing Liu, Weiling Wang, Xin Hng, Huey Hoon Yan, Qingyu |
Keywords: | DRNTU::Engineering::Materials::Energy materials | Issue Date: | 2014 | Source: | Zhang, W., Zhu, J., Ang, H., Wang, H., Tan, H. T., Yang, D., et al. (2014). Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode. ACS applied materials & interfaces, 6(10), 7164-7170. | Series/Report no.: | ACS applied materials & interfaces | Abstract: | Metallopolymer nanowalls were prepared through a simple wet-chemical process using reduced graphene oxides as heterogeneous nucleation aids, which also help to form conductive electron paths. The nanowalls grow vertically on graphene surface with 100 -200 nm in widths and ∼20 nm in thickness. The Fe-based metallopolymer nanowall-based electrode shows best performance as O2 cathode exhibiting high round-trip efficiencies and stable cycling performance among other transition metal containing metallopolymer counterparts. The electrode delivers discharge–charge capacities of 1000 mAh/g for 40 cycles and maintains round-trip efficiencies >78 % at 50 mA/g. The 1st-cycle round-trip efficiencies are 79%, 72%, and 65% at current densities of 50, 200, and 400 mA/g, respectively. The NMR analysis of the Fe-based metallopolymer based electrode after 40 cycles reveals slow formation of the side products, CH3CO2Li and HCO2Li. | URI: | https://hdl.handle.net/10356/106599 http://hdl.handle.net/10220/24430 |
ISSN: | 1944-8244 | DOI: | 10.1021/am500158s | Rights: | © 2014 American Chemical Society. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | ERI@N Journal Articles MSE Journal Articles SCBE Journal Articles |
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.