Flexible free-standing Na4Mn9O18/reduced graphene oxide composite film as a cathode for sodium rechargeable hybrid aqueous battery

Guanghui Yuan; Jiming Xiang; Huafeng Jin; Yanzi Jin; Lizhou Wu; Yongguang Zhang; Almagul Mentbayeva; Zhumabay Bakenov

doi:10.1016/j.electacta.2017.11.015

Flexible free-standing Na₄Mn₉O₁₈/reduced graphene oxide composite film as a cathode for sodium rechargeable hybrid aqueous battery

Guanghui Yuan, Jiming Xiang, Huafeng Jin, Yanzi Jin, Lizhou Wu, Yongguang Zhang, Almagul Mentbayeva, Zhumabay Bakenov

Department of Chemical and Materials Engineering

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

10 Citations (Scopus)

Abstract

A novel free-standing Na₄Mn₉O₁₈/reduced graphene oxide (NMO-RGO) composite was successfully prepared by a facile vacuum filtration technique. Scanning and transmission electron microscopy studies revealed formation of a film with needle-like Na₄Mn₉O₁₈ homogeneously distributed and anchored on the RGO matrix. A sodium rechargeable hybrid aqueous battery with this novel cathode and zinc anode was first investigated and reported. The NMO-RGO film delivered a reversible discharge capacity of about 83 mAh g⁻¹ when cycled galvanostatically at a current density of 0.1 A g⁻¹, which was for about 78% higher than that of Na₄Mn₉O₁₈ prepared by a slurry casting technique. This significant enhancement of electrochemical properties of NMO-RGO was due to the presence of graphene sheets in this free-standing composite cathode. These sheets form an agile substrate with a high conductivity to guarantee a successive electronic conduction channels in the electrode. In the same time, such composition and structure enables accommodation of the volume changes of Na₄Mn₉O₁₈ during sodium insertion-extraction.

Original language	English
Pages (from-to)	647-654
Number of pages	8
Journal	Electrochimica Acta
Volume	259
DOIs	https://doi.org/10.1016/j.electacta.2017.11.015
Publication status	Published - Jan 1 2018

Keywords

Cathode material
Composite film
Free-standing electrode
NaMnO/reduced graphene oxide
Rechargeable hybrid aqueous battery

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry

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Flexible free-standing Na₄Mn₉O₁₈/reduced graphene oxide composite film as a cathode for sodium rechargeable hybrid aqueous battery. / Yuan, Guanghui; Xiang, Jiming; Jin, Huafeng; Jin, Yanzi; Wu, Lizhou; Zhang, Yongguang; Mentbayeva, Almagul ; Bakenov, Zhumabay.

In: Electrochimica Acta, Vol. 259, 01.01.2018, p. 647-654.

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

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title = "Flexible free-standing Na4Mn9O18/reduced graphene oxide composite film as a cathode for sodium rechargeable hybrid aqueous battery",

abstract = "A novel free-standing Na4Mn9O18/reduced graphene oxide (NMO-RGO) composite was successfully prepared by a facile vacuum filtration technique. Scanning and transmission electron microscopy studies revealed formation of a film with needle-like Na4Mn9O18 homogeneously distributed and anchored on the RGO matrix. A sodium rechargeable hybrid aqueous battery with this novel cathode and zinc anode was first investigated and reported. The NMO-RGO film delivered a reversible discharge capacity of about 83 mAh g−1 when cycled galvanostatically at a current density of 0.1 A g−1, which was for about 78% higher than that of Na4Mn9O18 prepared by a slurry casting technique. This significant enhancement of electrochemical properties of NMO-RGO was due to the presence of graphene sheets in this free-standing composite cathode. These sheets form an agile substrate with a high conductivity to guarantee a successive electronic conduction channels in the electrode. In the same time, such composition and structure enables accommodation of the volume changes of Na4Mn9O18 during sodium insertion-extraction.",

keywords = "Cathode material, Composite film, Free-standing electrode, NaMnO/reduced graphene oxide, Rechargeable hybrid aqueous battery",

author = "Guanghui Yuan and Jiming Xiang and Huafeng Jin and Yanzi Jin and Lizhou Wu and Yongguang Zhang and Almagul Mentbayeva and Zhumabay Bakenov",

note = "Funding Information: This work was supported by Natural Science Fund of Education Department of Shaanxi Provincial Government (Grant No. 16JK018 ), Natural Science Fund and Subject Merging Fund of Ankang University for high-level talents (Grant Nos. 2016AYQDZR05 and 2017AYJC01 ), the targeted program 0115CK03029 ((NU-Berkeley strategic initiative in warm-dense matter, advanced materials and energy sources for 2014-2018) and grant 3756/ГФ4-1 from the Ministry of Education and Science of the Republic of Kazakhstan . YGZ acknowledges the financial support by the Program for the Outstanding Talents of Guangdong sailing plan, Human Resources and Social Security of Guangdong Province . Publisher Copyright: {\textcopyright} 2017 Nazarbayev University",

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AU - Wu, Lizhou

AU - Zhang, Yongguang

AU - Mentbayeva, Almagul

AU - Bakenov, Zhumabay

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N2 - A novel free-standing Na4Mn9O18/reduced graphene oxide (NMO-RGO) composite was successfully prepared by a facile vacuum filtration technique. Scanning and transmission electron microscopy studies revealed formation of a film with needle-like Na4Mn9O18 homogeneously distributed and anchored on the RGO matrix. A sodium rechargeable hybrid aqueous battery with this novel cathode and zinc anode was first investigated and reported. The NMO-RGO film delivered a reversible discharge capacity of about 83 mAh g−1 when cycled galvanostatically at a current density of 0.1 A g−1, which was for about 78% higher than that of Na4Mn9O18 prepared by a slurry casting technique. This significant enhancement of electrochemical properties of NMO-RGO was due to the presence of graphene sheets in this free-standing composite cathode. These sheets form an agile substrate with a high conductivity to guarantee a successive electronic conduction channels in the electrode. In the same time, such composition and structure enables accommodation of the volume changes of Na4Mn9O18 during sodium insertion-extraction.

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