Bi2O3 deposited on highly ordered mesoporous carbon for supercapacitors

Dingsheng Yuan; Jianghua Zeng; Noel Kristian; Yi Wang; Xin Wang

doi:10.1016/j.elecom.2008.11.041

Bi₂O₃ deposited on highly ordered mesoporous carbon for supercapacitors

Dingsheng Yuan
, Jianghua Zeng
, Noel Kristian
, Yi Wang
, Xin Wang

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

122 Citations (Scopus)

Abstract

A simple route has been employed to prepare nanosized Bi₂O₃ deposited on highly ordered mesoporous carbon. The electrochemical measurements reveal that, by loading only 10% Bi₂O₃ on the mesoporous carbon, the specific capacitance of the composite is improved by 62%, with the maximum value reaching 232 F g^-1 at a sweep rate of 5 mV s^-1. The specific capacitance of Bi₂O₃ is calculated and reaches 1305 F g^-1 at 1 mV s^-1. It is found that the mass transfer in the framework of the crystalline oxide is still difficult in spite of its nanosize, as evidenced by the decline of the specific capacitance of the Bi₂O₃ with the increase of the sweep rate. The cyclic life of composite materials is also measured and the capacitance only declines 21% after 1000 cycles. © 2008 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	313-317
Journal	Electrochemistry Communications
Volume	11
Issue number	2
DOIs	https://doi.org/10.1016/j.elecom.2008.11.041
Publication status	Published - Feb 2009
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

This work was financially supported by the academic research fund AcRF tier 1(RG40/05), AcRF tier 2 (ARC11/06) of the Ministry of Education (Singapore), Supplementary equipment purchase fund (RG116/06). Funding support from Natural Science Foundation of China (20876067) and the Young-Teacher Fund of Jinan University (51208023) are also greatly acknowledged.

Research Keywords

Bi2O3
Highly ordered mesoporous carbon
Specific capacitance
Supercapacitors

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Cite this

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title = "Bi2O3 deposited on highly ordered mesoporous carbon for supercapacitors",

abstract = "A simple route has been employed to prepare nanosized Bi2O3 deposited on highly ordered mesoporous carbon. The electrochemical measurements reveal that, by loading only 10\% Bi2O3 on the mesoporous carbon, the specific capacitance of the composite is improved by 62\%, with the maximum value reaching 232 F g-1 at a sweep rate of 5 mV s-1. The specific capacitance of Bi2O3 is calculated and reaches 1305 F g-1 at 1 mV s-1. It is found that the mass transfer in the framework of the crystalline oxide is still difficult in spite of its nanosize, as evidenced by the decline of the specific capacitance of the Bi2O3 with the increase of the sweep rate. The cyclic life of composite materials is also measured and the capacitance only declines 21\% after 1000 cycles. {\textcopyright} 2008 Elsevier B.V. All rights reserved.",

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author = "Dingsheng Yuan and Jianghua Zeng and Noel Kristian and Yi Wang and Xin Wang",

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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T1 - Bi2O3 deposited on highly ordered mesoporous carbon for supercapacitors

AU - Yuan, Dingsheng

AU - Zeng, Jianghua

AU - Kristian, Noel

AU - Wang, Yi

AU - Wang, Xin

N1 - 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].

PY - 2009/2

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N2 - A simple route has been employed to prepare nanosized Bi2O3 deposited on highly ordered mesoporous carbon. The electrochemical measurements reveal that, by loading only 10% Bi2O3 on the mesoporous carbon, the specific capacitance of the composite is improved by 62%, with the maximum value reaching 232 F g-1 at a sweep rate of 5 mV s-1. The specific capacitance of Bi2O3 is calculated and reaches 1305 F g-1 at 1 mV s-1. It is found that the mass transfer in the framework of the crystalline oxide is still difficult in spite of its nanosize, as evidenced by the decline of the specific capacitance of the Bi2O3 with the increase of the sweep rate. The cyclic life of composite materials is also measured and the capacitance only declines 21% after 1000 cycles. © 2008 Elsevier B.V. All rights reserved.

AB - A simple route has been employed to prepare nanosized Bi2O3 deposited on highly ordered mesoporous carbon. The electrochemical measurements reveal that, by loading only 10% Bi2O3 on the mesoporous carbon, the specific capacitance of the composite is improved by 62%, with the maximum value reaching 232 F g-1 at a sweep rate of 5 mV s-1. The specific capacitance of Bi2O3 is calculated and reaches 1305 F g-1 at 1 mV s-1. It is found that the mass transfer in the framework of the crystalline oxide is still difficult in spite of its nanosize, as evidenced by the decline of the specific capacitance of the Bi2O3 with the increase of the sweep rate. The cyclic life of composite materials is also measured and the capacitance only declines 21% after 1000 cycles. © 2008 Elsevier B.V. All rights reserved.

KW - Bi2O3

KW - Highly ordered mesoporous carbon

KW - Specific capacitance

KW - Supercapacitors

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DO - 10.1016/j.elecom.2008.11.041

M3 - RGC 21 - Publication in refereed journal

SN - 1388-2481

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JO - Electrochemistry Communications

JF - Electrochemistry Communications

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