Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode

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...

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Main 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
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2014
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Online Access:https://hdl.handle.net/10356/106599
http://hdl.handle.net/10220/24430
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1065992021-01-08T07:27:31Z Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode 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 School of Chemical and Biomedical Engineering School of Materials Science & Engineering Energy Research Institute @ NTU (ERI@N) DRNTU::Engineering::Materials::Energy materials 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. 2014-12-11T02:38:22Z 2019-12-06T22:14:45Z 2014-12-11T02:38:22Z 2019-12-06T22:14:45Z 2014 2014 Journal Article 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. 1944-8244 https://hdl.handle.net/10356/106599 http://hdl.handle.net/10220/24430 10.1021/am500158s en ACS applied materials & interfaces © 2014 American Chemical Society.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Materials::Energy materials
spellingShingle DRNTU::Engineering::Materials::Energy materials
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
Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode
description 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.
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
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
format Article
author 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
author_sort Zhang, Wenyu
title Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode
title_short Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode
title_full Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode
title_fullStr Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode
title_full_unstemmed Fe-based metallopolymer nanowall-based composites for Li-O2 battery cathode
title_sort fe-based metallopolymer nanowall-based composites for li-o2 battery cathode
publishDate 2014
url https://hdl.handle.net/10356/106599
http://hdl.handle.net/10220/24430
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