One-pot synthesis of core-shell-structured tin oxide-carbon composite powders by spray pyrolysis for use as anode materials in Li-ion batteries

Young Jun Hong; Yun Chan Kang

doi:10.1016/j.carbon.2015.03.010

One-pot synthesis of core-shell-structured tin oxide-carbon composite powders by spray pyrolysis for use as anode materials in Li-ion batteries

Young Jun Hong
, Yun Chan Kang^*

^*Corresponding author for this work

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

42 Citations (Scopus)

Abstract

Abstract Core-shell-structured tin oxide-carbon composite powders with mixed SnO₂ and SnO tetragonal crystals are prepared by one-pot spray pyrolysis from a spray solution with tin oxalate and polyvinylpyrrolidone (PVP). The aggregate, made up of SnO_x nanocrystals (several tens of nanometers), is uniformly coated with an amorphous carbon layer. The initial discharge capacities of the bare SnO₂ and SnO_x-carbon composite powders at a current density of 1 A g^-1 are 1473 and 1667 mA h g^-1, respectively; their discharge capacities after 500 cycles are 78 and 1033 mA h g^-1, respectively. The SnO_x-carbon composite powders maintain their spherical morphology even after 500 cycles. On the other hand, the bare SnO₂ powder breaks into several pieces after cycling. The structural stability of the SnO_x-carbon composite powders results in a low charge transfer resistance and high lithium ion diffusion rate even after 500 cycles at a high current density of 2 A g^-1. Therefore, the SnO_x-carbon composite powders have superior electrochemical properties compared with those of the bare SnO₂ powders with a fine size.

Original language	English
Article number	9756
Pages (from-to)	262-269
Number of pages	8
Journal	Carbon
Volume	88
DOIs	https://doi.org/10.1016/j.carbon.2015.03.010
Publication status	Published - 2015 Jul 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2012R1A2A2A02046367 ). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2012R1A1B3002382 ).

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.

ASJC Scopus subject areas

General Chemistry
General Materials Science

Access to Document

10.1016/j.carbon.2015.03.010

Cite this

@article{94da44dfcd944de4807ad5e90ee88e44,

title = "One-pot synthesis of core-shell-structured tin oxide-carbon composite powders by spray pyrolysis for use as anode materials in Li-ion batteries",

abstract = "Abstract Core-shell-structured tin oxide-carbon composite powders with mixed SnO2 and SnO tetragonal crystals are prepared by one-pot spray pyrolysis from a spray solution with tin oxalate and polyvinylpyrrolidone (PVP). The aggregate, made up of SnOx nanocrystals (several tens of nanometers), is uniformly coated with an amorphous carbon layer. The initial discharge capacities of the bare SnO2 and SnOx-carbon composite powders at a current density of 1 A g-1 are 1473 and 1667 mA h g-1, respectively; their discharge capacities after 500 cycles are 78 and 1033 mA h g-1, respectively. The SnOx-carbon composite powders maintain their spherical morphology even after 500 cycles. On the other hand, the bare SnO2 powder breaks into several pieces after cycling. The structural stability of the SnOx-carbon composite powders results in a low charge transfer resistance and high lithium ion diffusion rate even after 500 cycles at a high current density of 2 A g-1. Therefore, the SnOx-carbon composite powders have superior electrochemical properties compared with those of the bare SnO2 powders with a fine size.",

author = "Hong, \{Young Jun\} and Kang, \{Yun Chan\}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2012R1A2A2A02046367 ). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2012R1A1B3002382 ). Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd. All rights reserved.",

year = "2015",

month = jul,

day = "1",

doi = "10.1016/j.carbon.2015.03.010",

language = "English",

volume = "88",

pages = "262--269",

journal = "Carbon",

issn = "0008-6223",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - One-pot synthesis of core-shell-structured tin oxide-carbon composite powders by spray pyrolysis for use as anode materials in Li-ion batteries

AU - Hong, Young Jun

AU - Kang, Yun Chan

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2012R1A2A2A02046367 ). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2012R1A1B3002382 ). Publisher Copyright: © 2015 Elsevier Ltd. All rights reserved.

PY - 2015/7/1

Y1 - 2015/7/1

N2 - Abstract Core-shell-structured tin oxide-carbon composite powders with mixed SnO2 and SnO tetragonal crystals are prepared by one-pot spray pyrolysis from a spray solution with tin oxalate and polyvinylpyrrolidone (PVP). The aggregate, made up of SnOx nanocrystals (several tens of nanometers), is uniformly coated with an amorphous carbon layer. The initial discharge capacities of the bare SnO2 and SnOx-carbon composite powders at a current density of 1 A g-1 are 1473 and 1667 mA h g-1, respectively; their discharge capacities after 500 cycles are 78 and 1033 mA h g-1, respectively. The SnOx-carbon composite powders maintain their spherical morphology even after 500 cycles. On the other hand, the bare SnO2 powder breaks into several pieces after cycling. The structural stability of the SnOx-carbon composite powders results in a low charge transfer resistance and high lithium ion diffusion rate even after 500 cycles at a high current density of 2 A g-1. Therefore, the SnOx-carbon composite powders have superior electrochemical properties compared with those of the bare SnO2 powders with a fine size.

AB - Abstract Core-shell-structured tin oxide-carbon composite powders with mixed SnO2 and SnO tetragonal crystals are prepared by one-pot spray pyrolysis from a spray solution with tin oxalate and polyvinylpyrrolidone (PVP). The aggregate, made up of SnOx nanocrystals (several tens of nanometers), is uniformly coated with an amorphous carbon layer. The initial discharge capacities of the bare SnO2 and SnOx-carbon composite powders at a current density of 1 A g-1 are 1473 and 1667 mA h g-1, respectively; their discharge capacities after 500 cycles are 78 and 1033 mA h g-1, respectively. The SnOx-carbon composite powders maintain their spherical morphology even after 500 cycles. On the other hand, the bare SnO2 powder breaks into several pieces after cycling. The structural stability of the SnOx-carbon composite powders results in a low charge transfer resistance and high lithium ion diffusion rate even after 500 cycles at a high current density of 2 A g-1. Therefore, the SnOx-carbon composite powders have superior electrochemical properties compared with those of the bare SnO2 powders with a fine size.

UR - https://www.scopus.com/pages/publications/84926320670

U2 - 10.1016/j.carbon.2015.03.010

DO - 10.1016/j.carbon.2015.03.010

M3 - Article

AN - SCOPUS:84926320670

SN - 0008-6223

VL - 88

SP - 262

EP - 269

JO - Carbon

JF - Carbon

M1 - 9756

ER -

One-pot synthesis of core-shell-structured tin oxide-carbon composite powders by spray pyrolysis for use as anode materials in Li-ion batteries

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this