Hydrothermal synthesis of I?-MnO2 and I?-MnO2 nanorods as high capacity cathode materials for sodium ion batteries

Ahn, HJ; Wang, G; Su, D

Hydrothermal synthesis of I?-MnO2 and I?-MnO2 nanorods as high capacity cathode materials for sodium ion batteries

Ahn, HJ Wang, G Su, D

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Publisher:: RSC Publishing
Publication Type:: Journal Article
Citation:: Ahn, Hyo Jun, Wang, Guoxiu, and Su, Dawei 2013, 'Hydrothermal synthesis of I?-MnO2 and I?-MnO2 nanorods as high capacity cathode materials for sodium ion batteries', RSC Publishing, vol. 1, pp. 4845-4850.
Issue Date:: 2013

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Field	Value	Language
dc.contributor.author	Ahn, HJ	en_US
dc.contributor.author	Wang, G	en_US
dc.contributor.author	Su, D	en_US
dc.date.accessioned	2013-11-03T17:05:35Z
dc.date.available	2013-11-03T17:05:35Z
dc.date.issued	2013	en_US
dc.identifier	2012001652	en_US
dc.identifier.citation	Ahn, Hyo Jun, Wang, Guoxiu, and Su, Dawei 2013, 'Hydrothermal synthesis of I?-MnO2 and I?-MnO2 nanorods as high capacity cathode materials for sodium ion batteries', RSC Publishing, vol. 1, pp. 4845-4850.	en_US
dc.identifier.issn	2050-7488	en_US
dc.identifier.other	C1	en_US
dc.identifier.uri	http://hdl.handle.net/10453/24052
dc.description.abstract	Two types of MnO2 polymorphs, I?-MnO2 and I?-MnO2 nanorods, have been synthesized by a hydrothermal method. Their crystallographic phases, morphologies, and crystal structures were characterized by XRD, FESEM and TEM analysis. Different exposed crystal planes have been identified by TEM. The electrochemical properties of I?-MnO2 and I?-MnO2 nanorods as cathode materials in Na-ion batteries were evaluated by galvanostatic charge/discharge testing. Both I?-MnO2 and I?-MnO2 nanorods achieved high initial sodium ion storage capacities of 278 mA h ga??1 and 298 mA h ga??1, respectively. I?-MnO2 nanorods exhibited a better electrochemical performance such as good rate capability and cyclability than that of I?-MnO2 nanorods, which could be ascribed to a more compact tunnel structure of I?-MnO2 nanorods. Furthermore, the one-dimensional architecture of nanorods could also contribute to facile sodium ion diffusion in the charge and discharge process.	en_US
dc.publisher	RSC Publishing	en_US
dc.relation.ispartof	Journal of Materials Chemistry A	en_US
dc.relation.ispartof	Verified OK	en_US
dc.subject.classification	Materials Engineering	en_US
dc.title	Hydrothermal synthesis of I?-MnO2 and I?-MnO2 nanorods as high capacity cathode materials for sodium ion batteries	en_US
dc.type	Journal article
utslib.citation.volume	1	en_US
utslib.location	Cambridge	en_US
utslib.citation.startpage	4845	en_US
utslib.citation.endpage	4850	en_US
utslib.identifier.org	SCI.Chemistry and Forensic Sciences	en_US
utslib.for	091200	en_US
utslib.percentage	50	en_US
utslib.copyright.status	open_access

Abstract:

Two types of MnO2 polymorphs, I?-MnO2 and I?-MnO2 nanorods, have been synthesized by a hydrothermal method. Their crystallographic phases, morphologies, and crystal structures were characterized by XRD, FESEM and TEM analysis. Different exposed crystal planes have been identified by TEM. The electrochemical properties of I?-MnO2 and I?-MnO2 nanorods as cathode materials in Na-ion batteries were evaluated by galvanostatic charge/discharge testing. Both I?-MnO2 and I?-MnO2 nanorods achieved high initial sodium ion storage capacities of 278 mA h ga??1 and 298 mA h ga??1, respectively. I?-MnO2 nanorods exhibited a better electrochemical performance such as good rate capability and cyclability than that of I?-MnO2 nanorods, which could be ascribed to a more compact tunnel structure of I?-MnO2 nanorods. Furthermore, the one-dimensional architecture of nanorods could also contribute to facile sodium ion diffusion in the charge and discharge process.

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http://hdl.handle.net/10453/24052