Ultrafine CoP nanoparticles encapsulated in N/P dual-doped carbon cubes derived from 7,7,8,8-tetracyanoquinodimethane for lithium-ion batteries

Gwang Hee Lee; Yoon Seon Kim; Myeong Chang Sung; Dong Wan Kim

doi:10.1016/j.apsusc.2021.149716

Ultrafine CoP nanoparticles encapsulated in N/P dual-doped carbon cubes derived from 7,7,8,8-tetracyanoquinodimethane for lithium-ion batteries

Gwang Hee Lee
, Yoon Seon Kim
, Myeong Chang Sung
, Dong Wan Kim^*

^*Corresponding author for this work

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

13 Citations (Scopus)

Abstract

The design of electrode materials plays a significant role in achieving the desired electrochemical performance for lithium-ion batteries; the design should provide a fast electronic transport pathway and prevent excessive volume variation. Herein, ultrafine CoP nanoparticles were successfully embedded in a nitrogen-doped carbon cube (NP-CC), which was synthesized from 7,7,8,8-tetracyanoquinodimethane (TCNQ)-derived carbon. CoP@NP-CC was synthesized by the chemical interaction between cobalt iodide and TCNQ, followed by thermal phosphidation. When applied as an anode material for lithium-ion batteries, CoP@NP-CC exhibited outstanding rate capability with a long-term cycling performance. The excellent electrochemical performance is attributed to the monodisperse construction of CoP nanoparticles embedded in NP-CC, which relieved the volume change of CoP nanoparticles and provided a highly conductive matrix. This design of a monodisperse cubic architecture can be extended to other transition-metal-based electrode materials to attain a high performance of lithium-ion batteries.

Original language	English
Article number	149716
Journal	Applied Surface Science
Volume	555
DOIs	https://doi.org/10.1016/j.apsusc.2021.149716
Publication status	Published - 2021 Jul 30

Bibliographical note

Funding Information:
This work was supported by a Korea University Grant and the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT and Future Planning [NRF-2017R1C1B2004869, 2019R1A2B5B02070203]. This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1A6A1A03045059).

Publisher Copyright:
© 2021 Elsevier B.V.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Anode
CoP
Encapsulation
Lithium-ion batteries
N/P dual-doped carbon sheath
Ultrafine nanoparticles

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1016/j.apsusc.2021.149716

Cite this

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title = "Ultrafine CoP nanoparticles encapsulated in N/P dual-doped carbon cubes derived from 7,7,8,8-tetracyanoquinodimethane for lithium-ion batteries",

abstract = "The design of electrode materials plays a significant role in achieving the desired electrochemical performance for lithium-ion batteries; the design should provide a fast electronic transport pathway and prevent excessive volume variation. Herein, ultrafine CoP nanoparticles were successfully embedded in a nitrogen-doped carbon cube (NP-CC), which was synthesized from 7,7,8,8-tetracyanoquinodimethane (TCNQ)-derived carbon. CoP@NP-CC was synthesized by the chemical interaction between cobalt iodide and TCNQ, followed by thermal phosphidation. When applied as an anode material for lithium-ion batteries, CoP@NP-CC exhibited outstanding rate capability with a long-term cycling performance. The excellent electrochemical performance is attributed to the monodisperse construction of CoP nanoparticles embedded in NP-CC, which relieved the volume change of CoP nanoparticles and provided a highly conductive matrix. This design of a monodisperse cubic architecture can be extended to other transition-metal-based electrode materials to attain a high performance of lithium-ion batteries.",

keywords = "Anode, CoP, Encapsulation, Lithium-ion batteries, N/P dual-doped carbon sheath, Ultrafine nanoparticles",

author = "Lee, \{Gwang Hee\} and \{Seon Kim\}, Yoon and Sung, \{Myeong Chang\} and Kim, \{Dong Wan\}",

note = "Funding Information: This work was supported by a Korea University Grant and the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT and Future Planning [NRF-2017R1C1B2004869, 2019R1A2B5B02070203]. This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1A6A1A03045059). Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

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doi = "10.1016/j.apsusc.2021.149716",

language = "English",

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journal = "Applied Surface Science",

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T1 - Ultrafine CoP nanoparticles encapsulated in N/P dual-doped carbon cubes derived from 7,7,8,8-tetracyanoquinodimethane for lithium-ion batteries

AU - Lee, Gwang Hee

AU - Seon Kim, Yoon

AU - Sung, Myeong Chang

AU - Kim, Dong Wan

N1 - Funding Information: This work was supported by a Korea University Grant and the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT and Future Planning [NRF-2017R1C1B2004869, 2019R1A2B5B02070203]. This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2020R1A6A1A03045059). Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/7/30

Y1 - 2021/7/30

N2 - The design of electrode materials plays a significant role in achieving the desired electrochemical performance for lithium-ion batteries; the design should provide a fast electronic transport pathway and prevent excessive volume variation. Herein, ultrafine CoP nanoparticles were successfully embedded in a nitrogen-doped carbon cube (NP-CC), which was synthesized from 7,7,8,8-tetracyanoquinodimethane (TCNQ)-derived carbon. CoP@NP-CC was synthesized by the chemical interaction between cobalt iodide and TCNQ, followed by thermal phosphidation. When applied as an anode material for lithium-ion batteries, CoP@NP-CC exhibited outstanding rate capability with a long-term cycling performance. The excellent electrochemical performance is attributed to the monodisperse construction of CoP nanoparticles embedded in NP-CC, which relieved the volume change of CoP nanoparticles and provided a highly conductive matrix. This design of a monodisperse cubic architecture can be extended to other transition-metal-based electrode materials to attain a high performance of lithium-ion batteries.

AB - The design of electrode materials plays a significant role in achieving the desired electrochemical performance for lithium-ion batteries; the design should provide a fast electronic transport pathway and prevent excessive volume variation. Herein, ultrafine CoP nanoparticles were successfully embedded in a nitrogen-doped carbon cube (NP-CC), which was synthesized from 7,7,8,8-tetracyanoquinodimethane (TCNQ)-derived carbon. CoP@NP-CC was synthesized by the chemical interaction between cobalt iodide and TCNQ, followed by thermal phosphidation. When applied as an anode material for lithium-ion batteries, CoP@NP-CC exhibited outstanding rate capability with a long-term cycling performance. The excellent electrochemical performance is attributed to the monodisperse construction of CoP nanoparticles embedded in NP-CC, which relieved the volume change of CoP nanoparticles and provided a highly conductive matrix. This design of a monodisperse cubic architecture can be extended to other transition-metal-based electrode materials to attain a high performance of lithium-ion batteries.

KW - Anode

KW - CoP

KW - Encapsulation

KW - Lithium-ion batteries

KW - N/P dual-doped carbon sheath

KW - Ultrafine nanoparticles

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M3 - Article

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ER -

Ultrafine CoP nanoparticles encapsulated in N/P dual-doped carbon cubes derived from 7,7,8,8-tetracyanoquinodimethane for lithium-ion batteries

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

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