CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage

Although transition metal selenides are considered to be extremely promising anode materials for lithium-ion batteries (LIBs), severe volume changes and low electronic conductivity are their huge and unavoidable challenges. To solve these problems, CoSe nanoparticles in-situ grown on the inner surfa...

Full description

Saved in:
Bibliographic Details
Main Authors: Zhang, Tengsheng, Yuan, Yongfeng, Wang, Bingxu, Cai, Gaoshen, Du, Pingfan, Huang, Yizhong, Guo, Shaoyi
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2023
Subjects:
Online Access:https://hdl.handle.net/10356/170888
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-170888
record_format dspace
spelling sg-ntu-dr.10356-1708882023-10-04T07:10:25Z CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage Zhang, Tengsheng Yuan, Yongfeng Wang, Bingxu Cai, Gaoshen Du, Pingfan Huang, Yizhong Guo, Shaoyi School of Materials Science and Engineering Engineering::Materials Anode Honeycomb Carbon Although transition metal selenides are considered to be extremely promising anode materials for lithium-ion batteries (LIBs), severe volume changes and low electronic conductivity are their huge and unavoidable challenges. To solve these problems, CoSe nanoparticles in-situ grown on the inner surface of every macropore of 3D honeycomb C is successfully synthesized by three simple steps: dense assembling of polystyrene spheres, calcination and gaseous selenylation. The sizes of CoSe and honeycomb pores are 10-15 nm and 190 nm, respectively. The content of CoSe is 72 wt%. This unique architecture guarantees high electrochemical activity, rapid reaction kinetics and excellent structural stability of CoSe, as identified by cycling and rate performance measurements, various electrochemical kinetics analyses and ex-situ characterization of the cycled electrode material. As a result, the CoSe@honeycomb C anode exhibits extraordinary cycling performance (823.5 mAh g-1 after 200 cycles at 0.5 A g-1, 610.1 mAh g-1 after 250 cycles at 2 A g-1, 247 mAh g-1 after 1500 cycles at 5 A g-1) and exceptional rate capability (261.9 mAh g-1 at 10 A g-1, 1491.4 mAh g-1 at 0.1 A g-1), demonstrating that it is a potential anode material for high-performance LIBs. The authors gratefully acknowledge the support from Natural Science Foundation of Zhejiang Province, China (No. LY21E020011, LY21F040008), major project of Changshan Research Institute, Zhejiang Sci-Tech University (22020237-J), and the National Scholarship Fund of China Scholarship Council. 2023-10-04T07:10:25Z 2023-10-04T07:10:25Z 2023 Journal Article Zhang, T., Yuan, Y., Wang, B., Cai, G., Du, P., Huang, Y. & Guo, S. (2023). CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage. Journal of Colloid and Interface Science, 640, 52-60. https://dx.doi.org/10.1016/j.jcis.2023.02.098 0021-9797 https://hdl.handle.net/10356/170888 10.1016/j.jcis.2023.02.098 36841171 2-s2.0-85149839561 640 52 60 en Journal of colloid and interface science © 2023 Elsevier Inc. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
Anode
Honeycomb Carbon
spellingShingle Engineering::Materials
Anode
Honeycomb Carbon
Zhang, Tengsheng
Yuan, Yongfeng
Wang, Bingxu
Cai, Gaoshen
Du, Pingfan
Huang, Yizhong
Guo, Shaoyi
CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage
description Although transition metal selenides are considered to be extremely promising anode materials for lithium-ion batteries (LIBs), severe volume changes and low electronic conductivity are their huge and unavoidable challenges. To solve these problems, CoSe nanoparticles in-situ grown on the inner surface of every macropore of 3D honeycomb C is successfully synthesized by three simple steps: dense assembling of polystyrene spheres, calcination and gaseous selenylation. The sizes of CoSe and honeycomb pores are 10-15 nm and 190 nm, respectively. The content of CoSe is 72 wt%. This unique architecture guarantees high electrochemical activity, rapid reaction kinetics and excellent structural stability of CoSe, as identified by cycling and rate performance measurements, various electrochemical kinetics analyses and ex-situ characterization of the cycled electrode material. As a result, the CoSe@honeycomb C anode exhibits extraordinary cycling performance (823.5 mAh g-1 after 200 cycles at 0.5 A g-1, 610.1 mAh g-1 after 250 cycles at 2 A g-1, 247 mAh g-1 after 1500 cycles at 5 A g-1) and exceptional rate capability (261.9 mAh g-1 at 10 A g-1, 1491.4 mAh g-1 at 0.1 A g-1), demonstrating that it is a potential anode material for high-performance LIBs.
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Zhang, Tengsheng
Yuan, Yongfeng
Wang, Bingxu
Cai, Gaoshen
Du, Pingfan
Huang, Yizhong
Guo, Shaoyi
format Article
author Zhang, Tengsheng
Yuan, Yongfeng
Wang, Bingxu
Cai, Gaoshen
Du, Pingfan
Huang, Yizhong
Guo, Shaoyi
author_sort Zhang, Tengsheng
title CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage
title_short CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage
title_full CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage
title_fullStr CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage
title_full_unstemmed CoSe nanoparticles in-situ grown in 3D honeycomb carbon for high-performance lithium storage
title_sort cose nanoparticles in-situ grown in 3d honeycomb carbon for high-performance lithium storage
publishDate 2023
url https://hdl.handle.net/10356/170888
_version_ 1779171097970737152