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Molybdenum carbide nanoparticle-decorated 3D nitrogen-doped carbon flowers as an efficient electrode for high-performance, all-solid-state symmetric supercapacitors
- Molybdenum carbide nanoparticle-decorated 3D nitrogen-doped carbon flowers as an efficient electrode for high-performance, all-solid-state symmetric supercapacitors
- Samdani, Kunda Jitendra; Joh, Dong Woo; Lee, Kang Taek
- DGIST Authors
- Lee, Kang Taek
- Issue Date
- Journal of Alloys and Compounds, 748, 134-144
- Article Type
- 3D nanostructure; All-solid-state supercapacitor; Molybdenum carbide; Symmetric device
- Electrode materials with high electro-catalytic activity and tailored nanostructures are of great importance for high performance energy storage devices. We develop a novel 3D nanostructured electrode with highly stable, and catalytically-active molybdenum carbide nanoparticles decorated on nitrogen-doped carbon flowers (Mo2C/NCF). The controlled synthesis of Mo2C/NCF provides a uniform distribution of Mo2C nanoparticles of ∼80 nm on carbon microflowers with a self-assembled petal-like structure. The Mo2C/NCF achieves excellent electrochemical performance, with a specific capacitance of 1250 F/g at the current density of 1 A/g in a liquid electrolyte. A device consisting of all-solid-state symmetric supercapacitors (SSC) that used this novel electrode exhibits a high energy density of 54 Wh/kg along with remarkable cycling stability (100% retention after 5000 cycles). We believe that these results provide a new way for carbide materials to be used in high-performance energy storage devices. © 2018 Elsevier B.V.
- Elsevier Ltd
- Related Researcher
Lee, Kang Taek
AECSL(Advanced Energy Conversion and Storage Lab)
Advanced energy conversion and storage systems; Solid-state Electrochemical Energy Devices; All solid-state batteries; low-temperature solid oxide fuel cells(SOFCs); 신 에너지 변환 및 저장 시스템; Solid-state Electrochemical Energy Devices; 차세대 전고체 이차전지(solid-state batteries) 및 저온화 고체산화물 연료전지(LT-SOFCs)
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- Department of Energy Science and EngineeringAECSL(Advanced Energy Conversion and Storage Lab)1. Journal Articles
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