动力学
上部结构
材料科学
氧化还原
电容感应
储能
纳米技术
化学工程
结晶学
化学
热力学
物理
电气工程
冶金
功率(物理)
量子力学
工程类
作者
Xingjiang Wu,Xude Yu,Zhicheng Tian,Hao Li,Jianhong Xu
出处
期刊:ACS Nano
[American Chemical Society]
日期:2025-02-27
卷期号:19 (9): 9292-9303
被引量:8
标识
DOI:10.1021/acsnano.5c00717
摘要
Artificial superstructures with advanced physicochemical properties and electronic interfaces are of great importance for capacitive energy storage. Herein, by one-step phase transition and interfacial bridging, we achieve thermodynamically stable synthesis of the 1T-MoS2/graphitic carbon nitride (g-CN) superstructure, where the carbon atoms of g-CN are covalently bridged on molybdenum atoms of the 1T phase molybdenum disulfide (1T-MoS2) interface via C–Mo bonds. The DFT and MD calculations reveal that the 1T-MoS2/g-CN superstructure with a strong interfacial interaction (covalent character: 97%), superior electron conduction (d-band center: −1.2 eV), abundant accessible channels (free volume: 53% whole space), and expedited redox kinetics (reaction energy barriers: 0.9 eV) can enhance interfacial charge transfer and faradaic ion accumulation. Therefore, the 1T-MoS2/g-CN superstructure delivers a high specific capacitance of 2080 F g–1 and excellent structural stability in KOH solution. Moreover, the solid–polymer–electrolyte chip-based 1T-MoS2/g-CN supercapacitors can achieve a large energy density (73 mWh g–1), outstanding cycling stability (91% capacitance retention after 10,000 cycles), and desired self-powered application.
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