One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties

We report a simple glucose-mediated hydrothermal method for gram-scale synthesis of nearly monodisperse hybrid SnO2 nanoparticles. Glucose is found to play the dual role of facilitating rapid precipitation of polycrystalline SnO2 nanocolloids and in creating a uniform, glucose-derived, carbon-rich p...

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Main Authors: Archer, Lynden A., Lou, David Xiong Wen, Chen, Jun Song, Chen, Peng
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2012
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Online Access:https://hdl.handle.net/10356/95590
http://hdl.handle.net/10220/8330
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-955902020-03-07T11:35:34Z One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties Archer, Lynden A. Lou, David Xiong Wen Chen, Jun Song Chen, Peng School of Chemical and Biomedical Engineering DRNTU::Engineering::Materials We report a simple glucose-mediated hydrothermal method for gram-scale synthesis of nearly monodisperse hybrid SnO2 nanoparticles. Glucose is found to play the dual role of facilitating rapid precipitation of polycrystalline SnO2 nanocolloids and in creating a uniform, glucose-derived, carbon-rich polysaccharide (GCP) coating on the SnO2 nanocores. The thickness of the GCP coating can be facilely manipulated by varying glucose concentration in the synthesis medium. Carbon-coated SnO2 nanocolloids obtained after carbonization of the GCP coating exhibit significantly enhanced cycling performance for lithium storage. Specifically, we find that a capacity of ca. 440 mA h/g can be obtained after more than 100 charge/discharge cycles at a current density of 300 mA/g in hybrid SnO2-carbon electrodes containing as much as 1/3 of their mass in the low-activity carbon shell. By reducing the SnO2-carbon particles with H2, we demonstrate a simple route to carbon-coated Sn nanospheres. Lithium storage properties of the latter materials are also reported. Our results suggest that large initial irreversible losses in these materials are caused not only by the initial, presumably irreversible, reduction of SnO2 as generally perceived in the field, but also by the formation of the solid electrolyte interface (SEI). 2012-07-13T04:22:37Z 2019-12-06T19:17:56Z 2012-07-13T04:22:37Z 2019-12-06T19:17:56Z 2009 2009 Journal Article Lou, D. X. W., Chen, J. S., Chen, P., & Archer, L. A. (2009). One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties. Chemistry of materials, 21(13), 2868-2874. https://hdl.handle.net/10356/95590 http://hdl.handle.net/10220/8330 10.1021/cm900613d en Chemistry of materials © 2009 American Chemical Society.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Archer, Lynden A.
Lou, David Xiong Wen
Chen, Jun Song
Chen, Peng
One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties
description We report a simple glucose-mediated hydrothermal method for gram-scale synthesis of nearly monodisperse hybrid SnO2 nanoparticles. Glucose is found to play the dual role of facilitating rapid precipitation of polycrystalline SnO2 nanocolloids and in creating a uniform, glucose-derived, carbon-rich polysaccharide (GCP) coating on the SnO2 nanocores. The thickness of the GCP coating can be facilely manipulated by varying glucose concentration in the synthesis medium. Carbon-coated SnO2 nanocolloids obtained after carbonization of the GCP coating exhibit significantly enhanced cycling performance for lithium storage. Specifically, we find that a capacity of ca. 440 mA h/g can be obtained after more than 100 charge/discharge cycles at a current density of 300 mA/g in hybrid SnO2-carbon electrodes containing as much as 1/3 of their mass in the low-activity carbon shell. By reducing the SnO2-carbon particles with H2, we demonstrate a simple route to carbon-coated Sn nanospheres. Lithium storage properties of the latter materials are also reported. Our results suggest that large initial irreversible losses in these materials are caused not only by the initial, presumably irreversible, reduction of SnO2 as generally perceived in the field, but also by the formation of the solid electrolyte interface (SEI).
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Archer, Lynden A.
Lou, David Xiong Wen
Chen, Jun Song
Chen, Peng
format Article
author Archer, Lynden A.
Lou, David Xiong Wen
Chen, Jun Song
Chen, Peng
author_sort Archer, Lynden A.
title One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties
title_short One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties
title_full One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties
title_fullStr One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties
title_full_unstemmed One-pot synthesis of carbon-coated SnO2 nanocolloids with improved reversible lithium storage properties
title_sort one-pot synthesis of carbon-coated sno2 nanocolloids with improved reversible lithium storage properties
publishDate 2012
url https://hdl.handle.net/10356/95590
http://hdl.handle.net/10220/8330
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