Synthesis and electrochemical properties of cobalt sulfide-graphene oxide nanocomposites by hydrothermal method (수열합성법을 이용한 코발트 황화물-산화그래핀 나노복합체 제조 및 전기화학적 특성 연구)

Su Hwan Jeong (정수환); Joo-Hyung Kim (김주형)

doi:10.6111/JKCGCT.2023.33.6.203

Synthesis and electrochemical properties of cobalt sulfide-graphene oxide nanocomposites by hydrothermal method

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2023, 33(6), pp.203-209
DOI : 10.6111/JKCGCT.2023.33.6.203
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Received : November 2, 2023
Accepted : November 14, 2023
Published : December 31, 2023

Su Hwan Jeong ¹, Joo-Hyung Kim ²

¹경상국립대학교 나노신소재융합공학과
²경상국립대학교

Accredited

ABSTRACT

Cobalt sulfide nanocomposites were synthesized through a simple hydrothermal method as anode materials forsodium ion batteries (SIBs). In this work, a cobalt sulfide nanoparticle (CoS-NF) and a cobalt sulfide nanocompositeintegrated with reduced graphene oxide (CoS@G-NC) were fabricated for electrochemical energy storage performance ofbattery. The as-prepared CoS@G-NC electrode exhibited reversible and stable cycle performance (62 % after 30 cycles atcurrent density of 200 mA g-1). The improved electrochemical property was attributed to the small grain growth and uniformdistribution of cobalt sulfide during synthesis, which maximized the diffusion pathway for sodium ions and effectivelysuppressed the delamination and volume expansion of cobalt sulfide during the conversion reaction. The results providepromising anode materials for next-generation SIBs.

KEYWORDS

Sodium-ion batteries, Anode material, Cobalt sulfide, Graphene oxide

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* References for papers published after 2023 are currently being built.

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This paper was written with support from the National Research Foundation of Korea.

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Synthesis and electrochemical properties of cobalt sulfide-graphene oxide nanocomposites by hydrothermal method

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* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Synthesis and electrochemical properties of cobalt sulfide-graphene oxide nanocomposites by hydrothermal method

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