Hexagonal Carbon Nanoplates Decorated with Layer-Engineered MoS2: High-Performance Cathode Materials for Zinc-Ion Batteries

Chang Wan Kang; Jina Park; Gye Hong Kim; Kyoung Chul Ko; Seung Uk Son

doi:10.1021/acsami.2c14951

Hexagonal Carbon Nanoplates Decorated with Layer-Engineered MoS₂: High-Performance Cathode Materials for Zinc-Ion Batteries

ACS Appl Mater Interfaces. 2023 Feb 15;15(6):7887-7898. doi: 10.1021/acsami.2c14951. Epub 2023 Feb 2.

Authors

Chang Wan Kang¹, Jina Park¹, Gye Hong Kim², Kyoung Chul Ko³, Seung Uk Son¹

Affiliations

¹ Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea.
² Department of Earth Systems and Environmental Sciences, Chonnam National University, Gwangju 61186, Korea.
³ Department of Chemistry Education, Chonnam National University, Gwangju 61186, Korea.

PMID: 36728367
DOI: 10.1021/acsami.2c14951

Abstract

Hexagonal carbon nanoplates bearing MoS₂ (HCN@MoS₂) were synthesized using two-dimensional (2D) microporous organic polymers as templating materials. The layer number of MoS₂ in HCN@MoS₂ and the 2D morphology of composites were critical factors to achieve high-performance cathode materials for aqueous zinc-ion batteries. The best cathode performance was obtained with HCN@MoS₂ bearing 2-3 layered MoS₂ (HCN@MoS₂-2), showing excellent discharge capacities of 602 mAh/g (@50 mA/g), 498 mAh/g (@0.1 A/g), and 328 mAh/g (@1 A/g). The promising electrochemical performance of HCN@MoS₂-2 is attributable to the facilitated insertion of zinc ions into 2-3 layered MoS₂ due to the reduced lattice energy and the efficient electrochemical utilization of composite materials.

Keywords: cathode material; composite; microporous organic polymer; molybdenum disulfide; nanoplate; zinc-ion battery.