Excellent Li-ion storage performances of hierarchical SnO-SnO2 composite powders and SnO nanoplates prepared by one-pot spray pyrolysis

Jung Hyun Kim; Kyung Min Jeon; Jin Sung Park; Yun Chan Kang

doi:10.1016/j.jpowsour.2017.05.105

Excellent Li-ion storage performances of hierarchical SnO-SnO₂ composite powders and SnO nanoplates prepared by one-pot spray pyrolysis

Jung Hyun Kim, Kyung Min Jeon, Jin Sung Park, Yun Chan Kang

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

33 Citations (Scopus)

Abstract

Hierarchical-structured SnO-SnO₂ composite powders and SnO nanoplates with some SnO₂ nanorods are prepared by one-pot spray pyrolysis. Dicyandiamide dissolved in the spray solution plays a key role in the preparation of the hierarchical-structured SnO-SnO₂ composite powder and SnO nanoplates. The hierarchical-structured SnO-SnO₂ composite powders, in which the SnO nanoplates are trapped in the porous SnO₂ nanosphere, are prepared by spray pyrolysis at 800 °C. Sufficient conversion of the porous SnO₂ nanospheres to SnO at 900 °C results in aggregation-free SnO₂ nanoplates. SnO₂ nanorods with a spherical nanodroplet at the tip are formed by Ostwald ripening. The hierarchical-structured SnO-SnO₂ composite powder having high structural stability during repeated lithium alloying and dealloying reactions, shows superior discharge capacities and rate performances for lithium-ion storage compared to those of the dense-structured SnO₂ powders. The discharge capacities of the hierarchical-structured SnO-SnO₂ composite powders, SnO nanoplates with SnO₂ nanorods, and dense-structured SnO₂ powders at a current density of 1 A g⁻¹ for the 300th cycle are 561, 504, and 416 mA h g⁻¹, respectively. The SnO nanoplates with SnO₂ nanorods and hierarchical-structured SnO-SnO₂ powders deliver high reversible discharge capacities of 433 and 379 mA h g⁻¹ at an extremely high current density of 10 A g⁻¹, respectively.

Original language	English
Pages (from-to)	363-370
Number of pages	8
Journal	Journal of Power Sources
Volume	359
DOIs	https://doi.org/10.1016/j.jpowsour.2017.05.105
Publication status	Published - 2017

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (NRF-2015R1A2A1A15056049).

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Electrode material
Lithium-ion batteries
Nanostructure
Spray pyrolysis
Tin oxide

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.1016/j.jpowsour.2017.05.105

Cite this

@article{049e3ca85ac0475e95d29e92ff7f0a39,

title = "Excellent Li-ion storage performances of hierarchical SnO-SnO2 composite powders and SnO nanoplates prepared by one-pot spray pyrolysis",

abstract = "Hierarchical-structured SnO-SnO2 composite powders and SnO nanoplates with some SnO2 nanorods are prepared by one-pot spray pyrolysis. Dicyandiamide dissolved in the spray solution plays a key role in the preparation of the hierarchical-structured SnO-SnO2 composite powder and SnO nanoplates. The hierarchical-structured SnO-SnO2 composite powders, in which the SnO nanoplates are trapped in the porous SnO2 nanosphere, are prepared by spray pyrolysis at 800 °C. Sufficient conversion of the porous SnO2 nanospheres to SnO at 900 °C results in aggregation-free SnO2 nanoplates. SnO2 nanorods with a spherical nanodroplet at the tip are formed by Ostwald ripening. The hierarchical-structured SnO-SnO2 composite powder having high structural stability during repeated lithium alloying and dealloying reactions, shows superior discharge capacities and rate performances for lithium-ion storage compared to those of the dense-structured SnO2 powders. The discharge capacities of the hierarchical-structured SnO-SnO2 composite powders, SnO nanoplates with SnO2 nanorods, and dense-structured SnO2 powders at a current density of 1 A g−1 for the 300th cycle are 561, 504, and 416 mA h g−1, respectively. The SnO nanoplates with SnO2 nanorods and hierarchical-structured SnO-SnO2 powders deliver high reversible discharge capacities of 433 and 379 mA h g−1 at an extremely high current density of 10 A g−1, respectively.",

keywords = "Electrode material, Lithium-ion batteries, Nanostructure, Spray pyrolysis, Tin oxide",

author = "Kim, {Jung Hyun} and Jeon, {Kyung Min} and Park, {Jin Sung} and Kang, {Yun Chan}",

note = "Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (NRF-2015R1A2A1A15056049). Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.jpowsour.2017.05.105",

language = "English",

volume = "359",

pages = "363--370",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

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T1 - Excellent Li-ion storage performances of hierarchical SnO-SnO2 composite powders and SnO nanoplates prepared by one-pot spray pyrolysis

AU - Kim, Jung Hyun

AU - Jeon, Kyung Min

AU - Park, Jin Sung

AU - Kang, Yun Chan

N1 - Funding Information: This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (NRF-2015R1A2A1A15056049). Publisher Copyright: © 2017 Elsevier B.V.

PY - 2017

Y1 - 2017

N2 - Hierarchical-structured SnO-SnO2 composite powders and SnO nanoplates with some SnO2 nanorods are prepared by one-pot spray pyrolysis. Dicyandiamide dissolved in the spray solution plays a key role in the preparation of the hierarchical-structured SnO-SnO2 composite powder and SnO nanoplates. The hierarchical-structured SnO-SnO2 composite powders, in which the SnO nanoplates are trapped in the porous SnO2 nanosphere, are prepared by spray pyrolysis at 800 °C. Sufficient conversion of the porous SnO2 nanospheres to SnO at 900 °C results in aggregation-free SnO2 nanoplates. SnO2 nanorods with a spherical nanodroplet at the tip are formed by Ostwald ripening. The hierarchical-structured SnO-SnO2 composite powder having high structural stability during repeated lithium alloying and dealloying reactions, shows superior discharge capacities and rate performances for lithium-ion storage compared to those of the dense-structured SnO2 powders. The discharge capacities of the hierarchical-structured SnO-SnO2 composite powders, SnO nanoplates with SnO2 nanorods, and dense-structured SnO2 powders at a current density of 1 A g−1 for the 300th cycle are 561, 504, and 416 mA h g−1, respectively. The SnO nanoplates with SnO2 nanorods and hierarchical-structured SnO-SnO2 powders deliver high reversible discharge capacities of 433 and 379 mA h g−1 at an extremely high current density of 10 A g−1, respectively.

AB - Hierarchical-structured SnO-SnO2 composite powders and SnO nanoplates with some SnO2 nanorods are prepared by one-pot spray pyrolysis. Dicyandiamide dissolved in the spray solution plays a key role in the preparation of the hierarchical-structured SnO-SnO2 composite powder and SnO nanoplates. The hierarchical-structured SnO-SnO2 composite powders, in which the SnO nanoplates are trapped in the porous SnO2 nanosphere, are prepared by spray pyrolysis at 800 °C. Sufficient conversion of the porous SnO2 nanospheres to SnO at 900 °C results in aggregation-free SnO2 nanoplates. SnO2 nanorods with a spherical nanodroplet at the tip are formed by Ostwald ripening. The hierarchical-structured SnO-SnO2 composite powder having high structural stability during repeated lithium alloying and dealloying reactions, shows superior discharge capacities and rate performances for lithium-ion storage compared to those of the dense-structured SnO2 powders. The discharge capacities of the hierarchical-structured SnO-SnO2 composite powders, SnO nanoplates with SnO2 nanorods, and dense-structured SnO2 powders at a current density of 1 A g−1 for the 300th cycle are 561, 504, and 416 mA h g−1, respectively. The SnO nanoplates with SnO2 nanorods and hierarchical-structured SnO-SnO2 powders deliver high reversible discharge capacities of 433 and 379 mA h g−1 at an extremely high current density of 10 A g−1, respectively.

KW - Electrode material

KW - Lithium-ion batteries

KW - Nanostructure

KW - Spray pyrolysis

KW - Tin oxide

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DO - 10.1016/j.jpowsour.2017.05.105

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AN - SCOPUS:85019976859

SN - 0378-7753

VL - 359

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EP - 370

JO - Journal of Power Sources

JF - Journal of Power Sources

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