Co/Co3O4-embedded N-doped hollow carbon composite derived from a bimetallic MOF/ZnO Core-shell template as a sulfur host for Li-S batteries

Youngmoo Jeon; Jeongyeon Lee; Hakrae Jo; Hwichan Hong; Lawrence Yoon Suk Lee; Yuanzhe Piao

doi:10.1016/j.cej.2020.126967

Co/Co₃O₄-embedded N-doped hollow carbon composite derived from a bimetallic MOF/ZnO Core-shell template as a sulfur host for Li-S batteries

Youngmoo Jeon, Jeongyeon Lee, Hakrae Jo, Hwichan Hong, Lawrence Yoon Suk Lee (Corresponding Author), Yuanzhe Piao

Research output: Journal article publication › Journal article › Academic research › peer-review

102 Citations (Scopus)

Abstract

Lithium-sulfur batteries are a promising next-generation energy storage technology. To meet the industrial requirements, however, effective sulfur host materials are highly desired for the enhanced sulfur loading and lithium polysulfides (LiPSs) trapping. Herein, we describe the synthesis of N-doped hollow carbon composite embedded with well-dispersed Co/Co₃O₄ nanoparticles (Co/Co₃O₄-NHC) via the carbonization of a Zn/Co bimetallic metal-organic frameworks/ZnO nanospheres core-shell structure. The Co/Co₃O₄-NHC features uniform N-doping, intertwined carbon nanotubes (CNTs), and dual types of pores. ZnO nanospheres employed as a template for hollow structure also contribute to the formation of CNTs and micro-pores. The S-infiltrated Co/Co₃O₄-NHC cathode delivers an excellent rate performance (specific capacity of 447.9 mA h g⁻¹ at 5 C-rate) and stability (553.4 mA h g⁻¹ after 500 cycles). With a high S loading (4 mg cm⁻²), 87.8% of specific capacity is retained after 250 cycles. This work can offer insights on designing the sulfur host materials for high-performance Li-S batteries.

Original language	English
Article number	126967
Journal	Chemical Engineering Journal
Volume	407
DOIs	https://doi.org/10.1016/j.cej.2020.126967
Publication status	Published - 1 Mar 2021

Keywords

Cathode
Cobalt oxide nanoparticle
Lithium sulfur battery
ZIF-67
Zinc oxide nanosphere

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

More information

10.1016/j.cej.2020.126967

http://hdl.handle.net/10397/100092

Cite this

@article{85cb04d7859644eca6f8600eef9d120d,

title = "Co/Co3O4-embedded N-doped hollow carbon composite derived from a bimetallic MOF/ZnO Core-shell template as a sulfur host for Li-S batteries",

abstract = "Lithium-sulfur batteries are a promising next-generation energy storage technology. To meet the industrial requirements, however, effective sulfur host materials are highly desired for the enhanced sulfur loading and lithium polysulfides (LiPSs) trapping. Herein, we describe the synthesis of N-doped hollow carbon composite embedded with well-dispersed Co/Co3O4 nanoparticles (Co/Co3O4-NHC) via the carbonization of a Zn/Co bimetallic metal-organic frameworks/ZnO nanospheres core-shell structure. The Co/Co3O4-NHC features uniform N-doping, intertwined carbon nanotubes (CNTs), and dual types of pores. ZnO nanospheres employed as a template for hollow structure also contribute to the formation of CNTs and micro-pores. The S-infiltrated Co/Co3O4-NHC cathode delivers an excellent rate performance (specific capacity of 447.9 mA h g−1 at 5 C-rate) and stability (553.4 mA h g−1 after 500 cycles). With a high S loading (4 mg cm−2), 87.8% of specific capacity is retained after 250 cycles. This work can offer insights on designing the sulfur host materials for high-performance Li-S batteries.",

keywords = "Cathode, Cobalt oxide nanoparticle, Lithium sulfur battery, ZIF-67, Zinc oxide nanosphere",

author = "Youngmoo Jeon and Jeongyeon Lee and Hakrae Jo and Hwichan Hong and Lee, {Lawrence Yoon Suk} and Yuanzhe Piao",

note = "Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( NRF-2018R1D1A1B07051249 ), Nano Material Technology Development Program ( NRF-2015M3A7B6027970 ), Science and Technology Amicable Relationships (STAR) Program ( NRF-2019K1A3A1A21031052 ) of MSIT/NRF, and the Hong Kong Polytechnic University (1-BE0Y). This research was also supported by the Center for Integrated Smart Sensors funded by the Ministry of Science, ICT and Future Planning, Republic of Korea, as Global Frontier Project ( CISS-2012M3A6A6054186 ). Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2018R1D1A1B07051249), Nano Material Technology Development Program (NRF-2015M3A7B6027970), Science and Technology Amicable Relationships (STAR) Program (NRF-2019K1A3A1A21031052) of MSIT/NRF, and the Hong Kong Polytechnic University (1-BE0Y). This research was also supported by the Center for Integrated Smart Sensors funded by the Ministry of Science, ICT and Future Planning, Republic of Korea, as Global Frontier Project (CISS-2012M3A6A6054186). Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

month = mar,

day = "1",

doi = "10.1016/j.cej.2020.126967",

language = "English",

volume = "407",

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T1 - Co/Co3O4-embedded N-doped hollow carbon composite derived from a bimetallic MOF/ZnO Core-shell template as a sulfur host for Li-S batteries

AU - Jeon, Youngmoo

AU - Lee, Jeongyeon

AU - Jo, Hakrae

AU - Hong, Hwichan

AU - Lee, Lawrence Yoon Suk

AU - Piao, Yuanzhe

N1 - Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education ( NRF-2018R1D1A1B07051249 ), Nano Material Technology Development Program ( NRF-2015M3A7B6027970 ), Science and Technology Amicable Relationships (STAR) Program ( NRF-2019K1A3A1A21031052 ) of MSIT/NRF, and the Hong Kong Polytechnic University (1-BE0Y). This research was also supported by the Center for Integrated Smart Sensors funded by the Ministry of Science, ICT and Future Planning, Republic of Korea, as Global Frontier Project ( CISS-2012M3A6A6054186 ). Funding Information: This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2018R1D1A1B07051249), Nano Material Technology Development Program (NRF-2015M3A7B6027970), Science and Technology Amicable Relationships (STAR) Program (NRF-2019K1A3A1A21031052) of MSIT/NRF, and the Hong Kong Polytechnic University (1-BE0Y). This research was also supported by the Center for Integrated Smart Sensors funded by the Ministry of Science, ICT and Future Planning, Republic of Korea, as Global Frontier Project (CISS-2012M3A6A6054186). Publisher Copyright: © 2020 Elsevier B.V.

PY - 2021/3/1

Y1 - 2021/3/1

N2 - Lithium-sulfur batteries are a promising next-generation energy storage technology. To meet the industrial requirements, however, effective sulfur host materials are highly desired for the enhanced sulfur loading and lithium polysulfides (LiPSs) trapping. Herein, we describe the synthesis of N-doped hollow carbon composite embedded with well-dispersed Co/Co3O4 nanoparticles (Co/Co3O4-NHC) via the carbonization of a Zn/Co bimetallic metal-organic frameworks/ZnO nanospheres core-shell structure. The Co/Co3O4-NHC features uniform N-doping, intertwined carbon nanotubes (CNTs), and dual types of pores. ZnO nanospheres employed as a template for hollow structure also contribute to the formation of CNTs and micro-pores. The S-infiltrated Co/Co3O4-NHC cathode delivers an excellent rate performance (specific capacity of 447.9 mA h g−1 at 5 C-rate) and stability (553.4 mA h g−1 after 500 cycles). With a high S loading (4 mg cm−2), 87.8% of specific capacity is retained after 250 cycles. This work can offer insights on designing the sulfur host materials for high-performance Li-S batteries.

AB - Lithium-sulfur batteries are a promising next-generation energy storage technology. To meet the industrial requirements, however, effective sulfur host materials are highly desired for the enhanced sulfur loading and lithium polysulfides (LiPSs) trapping. Herein, we describe the synthesis of N-doped hollow carbon composite embedded with well-dispersed Co/Co3O4 nanoparticles (Co/Co3O4-NHC) via the carbonization of a Zn/Co bimetallic metal-organic frameworks/ZnO nanospheres core-shell structure. The Co/Co3O4-NHC features uniform N-doping, intertwined carbon nanotubes (CNTs), and dual types of pores. ZnO nanospheres employed as a template for hollow structure also contribute to the formation of CNTs and micro-pores. The S-infiltrated Co/Co3O4-NHC cathode delivers an excellent rate performance (specific capacity of 447.9 mA h g−1 at 5 C-rate) and stability (553.4 mA h g−1 after 500 cycles). With a high S loading (4 mg cm−2), 87.8% of specific capacity is retained after 250 cycles. This work can offer insights on designing the sulfur host materials for high-performance Li-S batteries.

KW - Cathode

KW - Cobalt oxide nanoparticle

KW - Lithium sulfur battery

KW - ZIF-67

KW - Zinc oxide nanosphere

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