Hollow-porous nanospheres of ZnMn2O4 spinel: a high energy density cathode for rechargeable aqueous battery

Atin Pramanik; Shreyasi Chattopadhyay; Sandipan Maiti; Goutam De; Sourindra Mahanty

doi:10.1016/j.matchemphys.2021.124373

Hollow-porous nanospheres of ZnMn₂O₄ spinel: a high energy density cathode for rechargeable aqueous battery

Atin Pramanik^*, Shreyasi Chattopadhyay, Sandipan Maiti, Goutam De^*, Sourindra Mahanty^*

^*Corresponding author for this work

School of Chemistry

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

Abstract

Well-controlled hollow-porous nanostructures can provide enhanced charge storage capacity owing to the rapid diffusion of electrolyte ions into their interior. However, interface engineering of stable hollow-porous nanostructures with reversible faradaic reactions for efficient energy conversion/storage devices is still a challenge. Herein, we report solvothermal synthesis of spinel ZnMn₂O₄ with a hollow-porous spherical (ZMO_HS) morphology. The formation mechanism of such a hierarchical nanostructure has been discussed. The ZMO_HS exhibits a specific capacity of ~187 mAh g⁻¹ at a current density of 2 A g⁻¹ when tested as a faradaic electrode (vs Pt) for a rechargeable aqueous battery (RAB) in alkaline electrolyte. Furthermore, a full cell RAB constituting of ZMO_HS//activated carbon (AC) demonstrates energy and power densities of ~215.7 Wh Kg⁻¹ and ~1184.5 W kg⁻¹ respectively, with ultra-long cycling stability (~106% capacitance retention after 10,000 cycles), making it a very promising material for next-generation energy storage device applications.

Original language	English
Article number	124373
Number of pages	11
Journal	Materials Chemistry and Physics
Volume	263
Early online date	23 Feb 2021
DOIs	https://doi.org/10.1016/j.matchemphys.2021.124373
Publication status	Published - 15 Apr 2021

Keywords

Ternary metal oxide
ZnMn2O4 hollow sphere
Hydrothermal synthesis
Aqueous rechargeable battery
Electrochemical energy storage

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10.1016/j.matchemphys.2021.124373

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title = "Hollow-porous nanospheres of ZnMn2O4 spinel: a high energy density cathode for rechargeable aqueous battery",

abstract = "Well-controlled hollow-porous nanostructures can provide enhanced charge storage capacity owing to the rapid diffusion of electrolyte ions into their interior. However, interface engineering of stable hollow-porous nanostructures with reversible faradaic reactions for efficient energy conversion/storage devices is still a challenge. Herein, we report solvothermal synthesis of spinel ZnMn2O4 with a hollow-porous spherical (ZMOHS) morphology. The formation mechanism of such a hierarchical nanostructure has been discussed. The ZMOHS exhibits a specific capacity of \textasciitilde{}187 mAh g−1 at a current density of 2 A g−1 when tested as a faradaic electrode (vs Pt) for a rechargeable aqueous battery (RAB) in alkaline electrolyte. Furthermore, a full cell RAB constituting of ZMOHS//activated carbon (AC) demonstrates energy and power densities of \textasciitilde{}215.7 Wh Kg−1 and \textasciitilde{}1184.5 W kg−1 respectively, with ultra-long cycling stability (\textasciitilde{}106\% capacitance retention after 10,000 cycles), making it a very promising material for next-generation energy storage device applications.",

keywords = "Ternary metal oxide, ZnMn2O4 hollow sphere, Hydrothermal synthesis, Aqueous rechargeable battery, Electrochemical energy storage",

author = "Atin Pramanik and Shreyasi Chattopadhyay and Sandipan Maiti and Goutam De and Sourindra Mahanty",

note = "Funding: A. Pramanik and S. Maiti thank CSIR India for senior research fellowship (Award Nos. 31/15(136)/2017-EMR-I and 31/15(127)/2015-EMR-I respectively). S. Chattopadhyay thanks UGC, India for research fellowship (Award No. F.2-44/2011(SA-I).",

year = "2021",

month = apr,

day = "15",

doi = "10.1016/j.matchemphys.2021.124373",

language = "English",

volume = "263",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

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TY - JOUR

T1 - Hollow-porous nanospheres of ZnMn2O4 spinel

T2 - a high energy density cathode for rechargeable aqueous battery

AU - Pramanik, Atin

AU - Chattopadhyay, Shreyasi

AU - Maiti, Sandipan

AU - De, Goutam

AU - Mahanty, Sourindra

N1 - Funding: A. Pramanik and S. Maiti thank CSIR India for senior research fellowship (Award Nos. 31/15(136)/2017-EMR-I and 31/15(127)/2015-EMR-I respectively). S. Chattopadhyay thanks UGC, India for research fellowship (Award No. F.2-44/2011(SA-I).

PY - 2021/4/15

Y1 - 2021/4/15

N2 - Well-controlled hollow-porous nanostructures can provide enhanced charge storage capacity owing to the rapid diffusion of electrolyte ions into their interior. However, interface engineering of stable hollow-porous nanostructures with reversible faradaic reactions for efficient energy conversion/storage devices is still a challenge. Herein, we report solvothermal synthesis of spinel ZnMn2O4 with a hollow-porous spherical (ZMOHS) morphology. The formation mechanism of such a hierarchical nanostructure has been discussed. The ZMOHS exhibits a specific capacity of ~187 mAh g−1 at a current density of 2 A g−1 when tested as a faradaic electrode (vs Pt) for a rechargeable aqueous battery (RAB) in alkaline electrolyte. Furthermore, a full cell RAB constituting of ZMOHS//activated carbon (AC) demonstrates energy and power densities of ~215.7 Wh Kg−1 and ~1184.5 W kg−1 respectively, with ultra-long cycling stability (~106% capacitance retention after 10,000 cycles), making it a very promising material for next-generation energy storage device applications.

AB - Well-controlled hollow-porous nanostructures can provide enhanced charge storage capacity owing to the rapid diffusion of electrolyte ions into their interior. However, interface engineering of stable hollow-porous nanostructures with reversible faradaic reactions for efficient energy conversion/storage devices is still a challenge. Herein, we report solvothermal synthesis of spinel ZnMn2O4 with a hollow-porous spherical (ZMOHS) morphology. The formation mechanism of such a hierarchical nanostructure has been discussed. The ZMOHS exhibits a specific capacity of ~187 mAh g−1 at a current density of 2 A g−1 when tested as a faradaic electrode (vs Pt) for a rechargeable aqueous battery (RAB) in alkaline electrolyte. Furthermore, a full cell RAB constituting of ZMOHS//activated carbon (AC) demonstrates energy and power densities of ~215.7 Wh Kg−1 and ~1184.5 W kg−1 respectively, with ultra-long cycling stability (~106% capacitance retention after 10,000 cycles), making it a very promising material for next-generation energy storage device applications.

KW - Ternary metal oxide

KW - ZnMn2O4 hollow sphere

KW - Hydrothermal synthesis

KW - Aqueous rechargeable battery

KW - Electrochemical energy storage

UR - https://www.scopus.com/pages/publications/85101314371

U2 - 10.1016/j.matchemphys.2021.124373

DO - 10.1016/j.matchemphys.2021.124373

M3 - Article

SN - 0254-0584

VL - 263

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

M1 - 124373

ER -

Hollow-porous nanospheres of ZnMn₂O₄ spinel: a high energy density cathode for rechargeable aqueous battery

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