In situ synthesis of bismuth (Bi)/reduced graphene oxide (RGO) nanocomposites as high-capacity anode materials for a Mg-ion battery

Tirupathi Rao Penki; Geetha Valurouthu; S. Shivakumara; Vijay Anand Sethuraman; N. Munichandraiah

doi:10.1039/c7nj04930g

In situ synthesis of bismuth (Bi)/reduced graphene oxide (RGO) nanocomposites as high-capacity anode materials for a Mg-ion battery

Tirupathi Rao Penki, Geetha Valurouthu, S. Shivakumara, Vijay Anand Sethuraman, N. Munichandraiah

Indian Institute of Science Bangalore

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

Herein, in situ reduction of bismuth and graphene oxide was performed by a solvothermal method under a N₂ atmosphere, and the resulting Bi/RGO nanocomposites were used as an anode material for Mg-ion batteries. The nanocomposite of 60% Bi:40% RGO is a beneficial anode material, delivering a discharge capacity as high as 413 and 372 mA h g^-1 at the specific current of 39 mA g^-1 in the 1st and 50th cycles, respectively. In addition, it shows high-rate capability with the discharge capacities of 381, 372, 354, 295, and 238 mA h g^-1 at the specific currents of 53, 100, 200, 500, and 700 mA g^-1, respectively. The better electrochemical performance of the nanocomposite is due to improvement in the electronic conductivity and significant reduction of volume changes during electrochemical cycling. This study demonstrates the bismuth (Bi)/reduced graphene oxide (RGO) nanocomposite as a promising high-capacity anode for magnesium-ion batteries with longer life cycle and high-rate performance.

Original language	English
Pages (from-to)	5996-6004
Number of pages	9
Journal	New Journal of Chemistry
Volume	42
Issue number	8
DOIs	https://doi.org/10.1039/c7nj04930g
State	Published - 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.

Funding

TRP and GV acknowledge the financial support received from the Indian Institute of Science, Bangalore, under Research Associate Fellowship and Bachelor of Science (Research) Programme. SSK acknowledges the financial support received from the University Grant Commission (UGC), Government of India, under Dr D. S. Kothari fellowship program [Ref. No. F.4-2/2006(BSR)/ 13-626/2012(BSR)], UGC and thanks the CeNSE, IISc, for providing characterisation facilities. TRP and GV acknowledge the financial support received from the Indian Institute of Science, Bangalore, under Research Associate Fellowship and Bachelor of Science (Research) Programme. SSK acknowledges the financial support received from the University Grant Commission (UGC), Government of India, under Dr D. S. Kothari fellowship program [Ref. No. F.4-2/2006(BSR)/13-626/2012(BSR)], UGC and thanks the CeNSE, IISc, for providing characterisation facilities.

Funders	Funder number
University Grant Commission
Indian Institute of Science
University Grants Committee

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title = "In situ synthesis of bismuth (Bi)/reduced graphene oxide (RGO) nanocomposites as high-capacity anode materials for a Mg-ion battery",

abstract = "Herein, in situ reduction of bismuth and graphene oxide was performed by a solvothermal method under a N2 atmosphere, and the resulting Bi/RGO nanocomposites were used as an anode material for Mg-ion batteries. The nanocomposite of 60% Bi:40% RGO is a beneficial anode material, delivering a discharge capacity as high as 413 and 372 mA h g-1 at the specific current of 39 mA g-1 in the 1st and 50th cycles, respectively. In addition, it shows high-rate capability with the discharge capacities of 381, 372, 354, 295, and 238 mA h g-1 at the specific currents of 53, 100, 200, 500, and 700 mA g-1, respectively. The better electrochemical performance of the nanocomposite is due to improvement in the electronic conductivity and significant reduction of volume changes during electrochemical cycling. This study demonstrates the bismuth (Bi)/reduced graphene oxide (RGO) nanocomposite as a promising high-capacity anode for magnesium-ion batteries with longer life cycle and high-rate performance.",

author = "Penki, {Tirupathi Rao} and Geetha Valurouthu and S. Shivakumara and Sethuraman, {Vijay Anand} and N. Munichandraiah",

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AU - Valurouthu, Geetha

AU - Shivakumara, S.

AU - Sethuraman, Vijay Anand

AU - Munichandraiah, N.

PY - 2018

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AB - Herein, in situ reduction of bismuth and graphene oxide was performed by a solvothermal method under a N2 atmosphere, and the resulting Bi/RGO nanocomposites were used as an anode material for Mg-ion batteries. The nanocomposite of 60% Bi:40% RGO is a beneficial anode material, delivering a discharge capacity as high as 413 and 372 mA h g-1 at the specific current of 39 mA g-1 in the 1st and 50th cycles, respectively. In addition, it shows high-rate capability with the discharge capacities of 381, 372, 354, 295, and 238 mA h g-1 at the specific currents of 53, 100, 200, 500, and 700 mA g-1, respectively. The better electrochemical performance of the nanocomposite is due to improvement in the electronic conductivity and significant reduction of volume changes during electrochemical cycling. This study demonstrates the bismuth (Bi)/reduced graphene oxide (RGO) nanocomposite as a promising high-capacity anode for magnesium-ion batteries with longer life cycle and high-rate performance.

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In situ synthesis of bismuth (Bi)/reduced graphene oxide (RGO) nanocomposites as high-capacity anode materials for a Mg-ion battery

Abstract

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