Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/79270
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Electrical Engineering | - |
dc.creator | Chatterjee, A | - |
dc.creator | Or, SW | - |
dc.creator | Cao, YL | - |
dc.date.accessioned | 2018-11-05T01:45:16Z | - |
dc.date.available | 2018-11-05T01:45:16Z | - |
dc.identifier.issn | 2079-4991 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/79270 | - |
dc.language.iso | en | en_US |
dc.publisher | Molecular Diversity Preservation International (MDPI) | en_US |
dc.rights | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | en_US |
dc.rights | The following publication Chatterjee, A., Or, S. W., & Cao, Y. (2018). Transition metal hollow nanocages as promising cathodes for the long-term cyclability of Li–O2batteries. Nanomaterials, 8(5), 308, 1-15 is available at https://doi.org/10.3390/nano8050308 | en_US |
dc.subject | Electrocatalytic cathodes | en_US |
dc.subject | Hollow nanocages | en_US |
dc.subject | Li-O-2 batteries | en_US |
dc.subject | Cyclic stability | en_US |
dc.subject | Transition metals | en_US |
dc.title | Transition metal hollow nanocages as promising cathodes for the long-term cyclability of Li-O-2 batteries | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 1 | en_US |
dc.identifier.epage | 15 | en_US |
dc.identifier.volume | 8 | en_US |
dc.identifier.issue | 5 | en_US |
dc.identifier.doi | 10.3390/nano8050308 | en_US |
dcterms.abstract | As a step towards efficient and cost-effective electrocatalytic cathodes for Li-O-2 batteries, highly porous hausmannite-type Mn3O4 hollow nanocages (MOHNs) of a large diameter of -250 nm and a high surface area of 90.65 m(2).g(-1) were synthesized and their physicochemical and electrochemical properties were studied in addition to their formation mechanism. A facile approach using carbon spheres as the template and MnCl2 as the precursor was adopted to suit the purpose. The MOHNs/Ketjenblack cathode-based Li-O-2 battery demonstrated an improved cyclability of 50 discharge-charge cycles at a specific current of 400 mA.g(-1) and a specific capacity of 600 mAh.g(-1). In contrast, the Ketjenblack cathode-based one can sustain only 15 cycles under the same electrolytic system comprised of 1 M LiTFSI/TEGDME. It is surmised that the unique hollow nanocage morphology of MOHNs is responsible for the high electrochemical performance. The hollow nanocages were a result of the aggregation of crystalline nanoparticles of 25-35 nm size, and the mesoscopic pores between the nanoparticles gave rise to a loosely mesoporous structure for accommodating the volume change in the MOHNs/Ketjenblack cathode during electrocatalytic reactions. The improved cyclic stability is mainly due to the faster mass transport of the O-2 through the mesoscopic pores. This work is comparable to the state-of-the-art experimentations on cathodes for Li-O-2 batteries that focus on the use of non-precious transition materials. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Nanomaterials, May 2018, v. 8, no. 5, 308, p. 1-15 | - |
dcterms.isPartOf | Nanomaterials | - |
dcterms.issued | 2018 | - |
dc.identifier.isi | WOS:000435198300039 | - |
dc.identifier.scopus | 2-s2.0-85047605480 | - |
dc.identifier.artn | 308 | en_US |
dc.identifier.rosgroupid | 2017004629 | - |
dc.description.ros | 2017-2018 > Academic research: refereed > Publication in refereed journal | - |
dc.description.validate | 201810 bcrc | en_US |
dc.description.oa | Version of Record | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Chatterjee_Metal_Hollow_Nanocages.pdf | 3.85 MB | Adobe PDF | View/Open |
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