Highly Ordered Dual Porosity Mesoporous Cobalt Oxide for Sodium-Ion Batteries

Jianping Yang; Tengfei Zhou; Rui Zhu; Xinqi Chen; Zaiping Guo; Jianwei Fan; Hua Kun Liu; Wei-Xian Zhang

doi:10.1002/admi.201500464

Highly Ordered Dual Porosity Mesoporous Cobalt Oxide for Sodium-Ion Batteries

Jianping Yang^*
, Tengfei Zhou
, Rui Zhu
, Xinqi Chen
, Zaiping Guo
, Jianwei Fan
, Hua Kun Liu
, Wei-Xian Zhang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

76 Citations (Scopus)

Abstract

Highly ordered mesoporous cobalt oxide (m-Co3O4) has been synthesized and applied as an electroactive material in sodium-ion battery anodes. Mesoporous silica was used as the template for the generation of dual porosity cobalt oxide with spherical mesopores and porous nanochannels. The most notable feature of our dual porosity mesoporous Co3O4 is that the highly ordered structure can provide much better transport pathways than the reference bulk Co3O4 derived nanostructure, because it can facilitate the mass transport of electrolyte in the larger pores and sodium ion diffusion in the smaller pores, and also provide a large electrode-electrolyte interface for electrolyte adsorption due to the surface disorder of the Co3O4. The outstanding dual porosity mesopores in the cobalt oxide allow better transport pathways and thus lead to an initial capacity of 707 mA h g-1 at a current density of 90 mA g-1, retaining a capacity of 416 mA h g-1 after 100 cycles. The sodium uptake/extraction is confirmed to take place through a reversible conversion reaction, based on ex situ characterization techniques, which identify dual porosity mesoporous Co3O4 as a high-performance sodium-ion battery anode material. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Original language	English
Article number	1500464
Journal	Advanced Materials Interfaces
Volume	3
Issue number	3
DOIs	https://doi.org/10.1002/admi.201500464
Publication status	Published - 5 Feb 2016
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

J.P.Y. and T.F.Z. contributed equally to this work. The authors acknowledge financial support from the China Postdoctoral Science Foundation (2014M551455 and 2015T80451) and from the Commonwealth of Australia through the Automotive Australia 2020 Cooperative Research Centre (Auto CRC 2020). The authors would like to thank Dr. T. Silver for critical reading of this paper.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

energy storage
hard-templating
mesoporous materials
metal oxides
sodium-ion batteries

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10.1002/admi.201500464

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title = "Highly Ordered Dual Porosity Mesoporous Cobalt Oxide for Sodium-Ion Batteries",

abstract = "Highly ordered mesoporous cobalt oxide (m-Co3O4) has been synthesized and applied as an electroactive material in sodium-ion battery anodes. Mesoporous silica was used as the template for the generation of dual porosity cobalt oxide with spherical mesopores and porous nanochannels. The most notable feature of our dual porosity mesoporous Co3O4 is that the highly ordered structure can provide much better transport pathways than the reference bulk Co3O4 derived nanostructure, because it can facilitate the mass transport of electrolyte in the larger pores and sodium ion diffusion in the smaller pores, and also provide a large electrode-electrolyte interface for electrolyte adsorption due to the surface disorder of the Co3O4. The outstanding dual porosity mesopores in the cobalt oxide allow better transport pathways and thus lead to an initial capacity of 707 mA h g-1 at a current density of 90 mA g-1, retaining a capacity of 416 mA h g-1 after 100 cycles. The sodium uptake/extraction is confirmed to take place through a reversible conversion reaction, based on ex situ characterization techniques, which identify dual porosity mesoporous Co3O4 as a high-performance sodium-ion battery anode material. {\textcopyright} 2015 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim.",

keywords = "energy storage, hard-templating, mesoporous materials, metal oxides, sodium-ion batteries",

author = "Jianping Yang and Tengfei Zhou and Rui Zhu and Xinqi Chen and Zaiping Guo and Jianwei Fan and Liu, \{Hua Kun\} and Wei-Xian Zhang",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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AU - Yang, Jianping

AU - Zhou, Tengfei

AU - Zhu, Rui

AU - Chen, Xinqi

AU - Guo, Zaiping

AU - Fan, Jianwei

AU - Liu, Hua Kun

AU - Zhang, Wei-Xian

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N2 - Highly ordered mesoporous cobalt oxide (m-Co3O4) has been synthesized and applied as an electroactive material in sodium-ion battery anodes. Mesoporous silica was used as the template for the generation of dual porosity cobalt oxide with spherical mesopores and porous nanochannels. The most notable feature of our dual porosity mesoporous Co3O4 is that the highly ordered structure can provide much better transport pathways than the reference bulk Co3O4 derived nanostructure, because it can facilitate the mass transport of electrolyte in the larger pores and sodium ion diffusion in the smaller pores, and also provide a large electrode-electrolyte interface for electrolyte adsorption due to the surface disorder of the Co3O4. The outstanding dual porosity mesopores in the cobalt oxide allow better transport pathways and thus lead to an initial capacity of 707 mA h g-1 at a current density of 90 mA g-1, retaining a capacity of 416 mA h g-1 after 100 cycles. The sodium uptake/extraction is confirmed to take place through a reversible conversion reaction, based on ex situ characterization techniques, which identify dual porosity mesoporous Co3O4 as a high-performance sodium-ion battery anode material. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

AB - Highly ordered mesoporous cobalt oxide (m-Co3O4) has been synthesized and applied as an electroactive material in sodium-ion battery anodes. Mesoporous silica was used as the template for the generation of dual porosity cobalt oxide with spherical mesopores and porous nanochannels. The most notable feature of our dual porosity mesoporous Co3O4 is that the highly ordered structure can provide much better transport pathways than the reference bulk Co3O4 derived nanostructure, because it can facilitate the mass transport of electrolyte in the larger pores and sodium ion diffusion in the smaller pores, and also provide a large electrode-electrolyte interface for electrolyte adsorption due to the surface disorder of the Co3O4. The outstanding dual porosity mesopores in the cobalt oxide allow better transport pathways and thus lead to an initial capacity of 707 mA h g-1 at a current density of 90 mA g-1, retaining a capacity of 416 mA h g-1 after 100 cycles. The sodium uptake/extraction is confirmed to take place through a reversible conversion reaction, based on ex situ characterization techniques, which identify dual porosity mesoporous Co3O4 as a high-performance sodium-ion battery anode material. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

KW - energy storage

KW - hard-templating

KW - mesoporous materials

KW - metal oxides

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Highly Ordered Dual Porosity Mesoporous Cobalt Oxide for Sodium-Ion Batteries

Abstract

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