煤焦油基多孔碳装载MoS2及其在超级电容器中的应用
Rui Bai1, Yuan-Jia Cao2, Cui-Ying Lu1
1Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization, School of Chemistry and Chemical Engineering, Yulin University, Yulin, Shaanxi 719000, China.
ACS omega
|October 2, 2023
概括
这项研究开发了用于超级电容器的二硫化装饰多孔碳 (MoS2@PC). 增强材料显著提高了能量密度和稳定性,在储能设备中提供了有前途的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 来自煤焦油的多孔碳 (PC) 是超级电容器的潜在电极材料.
- 提高PC的能量密度和电化学性能对于先进的储能应用至关重要.
研究的目的:
- 为了提高煤焦油基多孔碳 (PC) 的能量密度,用于超级电容器应用.
- 调查二硫化 (MoS) 负载对PC的结构和电化学性能的影响.
主要方法:
- 煤焦油的一步碳化产生多孔碳 (PC).
- 在PC基板上的MoS2@PC复合材料的热水合成.
- 使用三电极和两电极测试系统进行电化学表征.
主要成果:
- MoS2@PC-0.3 呈现出 3053 m2 g-1 的高特异性表面积.
- 具体电容达到422.5 Fg-1 (三电极) 和321.4 Fg-1 (两电极) 在0.5 Ag-1.
- 实现了优异的电容保留 (76.73%在三电极, 87.69%在两电极在10,000次循环后) 和100%的库伦比效率.
结论:
- 合成的MoS2@PC复合材料证明了超级电容器的优越电化学性能.
- 高表面积和MoS2装饰有效地提高了离子储存和能量密度.
- 这项工作为开发高性能超级电容电极材料提供了一个可行的策略.
更多相关视频
08:59Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
Published on: November 30, 2022
4.5K
10:44Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis
Published on: February 12, 2019
10.0K
相关概念视频
MOS Capacitor
825
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
825
MOSFET: Enhancement Mode
374
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
374
MOSFET
500
The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in modern electronics thanks to its versatility and efficiency in controlling electrical currents. This device, also known as IGFET, MISFET, and MOSFET, has three main terminals: the Source, Drain, and Gate. MOSFETs are classified into n-channel or p-channel types based on the doping characteristics of their substrate and the source or drain regions.
In an n-MOSFET, the structure includes n-type source and drain...
In an n-MOSFET, the structure includes n-type source and drain...
500
