Chemical Engineering Journal: Overcoming Pseudocapacitive Charge Storage Degradation
Chemical Engineering Journal Korean Media Coverage
Press Feature: Widely reported across South Korean media, including E-News Today (이뉴스투데이), Veritas Alpha, and Headline Jeju on October 24, 2024. View E-News Today Article.
Solving 2D/3D MXene Restacking & Oxidation Bottlenecks
Leading South Korean press outlets covered major research by Prof. Jinho Bae and Dr. Saqib's research group published in the Chemical Engineering Journal (CEJ) (Impact Factor: 13.3).
The research addresses the severe self-restacking and oxidative degradation that historically limits 2D transition metal carbides/nitrides (MXenes) in electrochemical energy storage devices.
Core Engineering Achievements
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Two-Step Hybrid Architecture Synthesis:
Engineered a two-step partial oxidation route converting 2D MXene flakes into 3D floralTi3C2-TiO2nanoribbons, followed by Cu-ion coordination to synthesize novel2D/3D Ti3C2-TiO2-CuTiO3heterostructures. -
Superior Capacitive Performance:
The resulting heterostructure demonstrated an exceptional capacitance of 437.3 F/g, significantly outperforming unoxidized pristine MXene (158.7 F/g) and single-phase nanoribbons (352.1 F/g). -
Long-Cycle Asymmetric Supercapacitor (ASC):
Fabricated ASC devices delivered an energy density of 31.1 Wh/kg and power density of 1041.7 W/kg, retaining 83.7% capacitance after 5,000 continuous charge-discharge cycles.
Journal Publication Citation
"Overcoming pseudocapacitive charge storage degradation of MXenes via engineered 2D/3D architectures"
Chemical Engineering Journal, Vol. 488, 150982 (2024).
Research Team: Department of Ocean System Engineering, BK21 BigOCEAN, Jeju National University & SRE² Lab.