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https://hdl.handle.net/2440/100639
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dc.contributor.author | Liu, G. | - |
dc.contributor.author | Chen, H. | - |
dc.contributor.author | Xia, L. | - |
dc.contributor.author | Wang, S. | - |
dc.contributor.author | Ding, L. | - |
dc.contributor.author | Li, D. | - |
dc.contributor.author | Xiao, K. | - |
dc.contributor.author | Dai, S. | - |
dc.contributor.author | Wang, H. | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | ACS Applied Materials and Interfaces, 2015; 7(40):22478-22486 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.issn | 1944-8252 | - |
dc.identifier.uri | http://hdl.handle.net/2440/100639 | - |
dc.description.abstract | Perovskites show excellent specific catalytic activity toward both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline solutions; however, small surface areas of the perovskites synthesized by traditional sol−gel methods lead to low utilization of catalytic sites, which gives rise to poor Li−O2 batteries performance and restricts their application. Herein, a hierarchical mesporous/macroporous perovskite La0.5Sr0.5CoO3‑x (HPN-LSC) nanotube is developed to promote its application in Li−O2 batteries. The HPNLSC nanotubes were synthesized via electrospinning technique followed by postannealing. The as-prepared HPN-LSC catalyst exhibits outstanding intrinsic ORR and OER catalytic activity. The HPN-LSC/KB electrode displays excellent performance toward both discharge and charge processes for Li−O2 batteries, which enhances the reversibility, the round-trip efficiency, and the capacity of resultant batteries. The synergy of high catalytic activity and hierarchical mesoporous/macroporous nanotubular structure results in the Li−O2 batteries with good rate capability and excellent cycle stability of sustaining 50 cycles at a current density of 0.1 mA cm−2 with an upperlimit capacity of 500 mAh g−1. The results will benefit for the future development of high-performance Li−O2 batteries using hierarchical mesoporous/macroporous nanostructured perovskite-type catalysts. | - |
dc.description.statementofresponsibility | Guoxue Liu, Hongbin Chen, Lu Xia, Suqing Wang, Liang-Xin Ding, Dongdong Li, Kang Xiao, Sheng Dai and Haihui Wang | - |
dc.language.iso | en | - |
dc.publisher | American Chemical Society | - |
dc.rights | Copyright © 2015 American Chemical Society | - |
dc.source.uri | http://dx.doi.org/10.1021/acsami.5b06587 | - |
dc.subject | Bifunctional catalysts | - |
dc.subject | electrospinning | - |
dc.subject | hierarchical mesoporous/macroporous nanotubes | - |
dc.subject | lithium−oxygen batteries | - |
dc.subject | perovskites | - |
dc.title | Hierarchical mesoporous/macroporous perovskite La₀.₅Sr₀.₅CoO₃-ₓ nanotubes: a bifunctional catalyst with enhanced activity and cycle stability for rechargeable lithium oxygen batteries | - |
dc.title.alternative | Hierarchical mesoporous/macroporous perovskite La(0).(5)Sr(0).(5)CoO(3)-(x) nanotubes: a bifunctional catalyst with enhanced activity and cycle stability for rechargeable lithium oxygen batteries | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1021/acsami.5b06587 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/FT140100757 | - |
pubs.publication-status | Published | - |
Appears in Collections: | Aurora harvest 3 Chemical Engineering publications |
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