相关实验视频
Updated: May 24, 2025

08:25
CMAP Scan MUNE MScan - A Novel Motor Unit Number Estimation MUNE Method
Published on: June 7, 2018
12.2K
在超级电容应用中使用MnO2/Ni-Cu-合聚织物作为自由立式电极
Sheila Shahidi1, Fatma Kalaoglu2, Leila Naji3
1Department of Textile, Faculty of Engineering and Agriculture, Islamic Azad University, Arak Branch, Arak 38361-1-9131, Iran.
ACS omega
|March 3, 2025
概括
在这项研究中,通过将二氧化 (MnO2) 沉积在Ni-Cu涂层聚上,开发出用于超级电容器应用的柔性电极. 由此产生的不对称超级电容器表现出明显高于对称超级电容器的性能.
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:
- 灵活的电子需要新的电极材料.
- 聚织物为导电涂层提供了多功能基材.
- 二氧化 (MnO2) 是一个有前途的伪电容材料.
研究的目的:
- 为了研究MnO2沉积的Ni-Cu合聚烯的电化学特性,作为柔性电极.
- 为了评估使用这些灵活电极的超级电容器电池的性能.
- 为了比较非对称和对称超级电容器配置的性能.
主要方法:
- 聚织物的Ni-Cu涂层,然后通过KMnO4浸泡沉积MnO2.
- 使用两点探针技术测量电阻.
- 使用循环电量计 (CV),静电充放电 (GCD) 和电化学阻抗光谱 (EIS) 的电化学表征.
- 使用扫描电子显微镜 (SEM) 的表面形态和元素分析.
- 组装和测试不对称超级电容电池 (ASC) 和对称超级电容电池 (SSC).
主要成果:
- 在Ni-Cu合聚上,MnO2沉积是通过不同的浸泡时间来实现的.
- SEM分析证实了表面结构和元素组成.
- 与对称超级电容电池 (SSC) 相比,不对称超级电容电池 (ASC) 的性能优越.
- 在电流密度分别为2,4,8和16 mA cm-2的情况下,ASC实现了558.6,481.9,435.5和330 mF cm-2的面积特异容量.
结论:
- Ni-Cu/MnO2沉积聚作为超级电容器的有效柔性电极材料.
- 非对称的超级电容器配置显示了显著增强的储能能力.
- 这项研究有助于开发先进的灵活储能装置.
相关概念视频
Molar Mass
68.9K
The identity of a substance is defined not only by the types of atoms or ions it contains but by the quantity of each type of atom or ion. For example, water, H2O, and hydrogen peroxide, H2O2, are alike in that their respective molecules are composed of hydrogen and oxygen atoms. However, because a hydrogen peroxide molecule contains two oxygen atoms, as opposed to the water molecule, which has only one, the two substances exhibit very different properties.
68.9K
MO Theory and Covalent Bonding
10.2K
The molecular orbital theory describes the distribution of electrons in molecules in a manner similar to the distribution of electrons in atomic orbitals. The region of space in which a valence electron in a molecule is likely to be found is called a molecular orbital. Mathematically, the linear combination of atomic orbitals (LCAO) generates molecular orbitals. Combinations of in-phase atomic orbital wave functions result in regions with a high probability of electron density, while...
10.2K
MOSFET
402
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...
402
Hückel's Rule Diagram of π MOs: Frost Circle
4.2K
The Frost circle or the inscribed polygon method is a graphical method for determining the relative energies of π molecular orbitals (MOs) for planar, fully conjugated, and monocyclic compounds. This method was first described by A. A. Frost and Boris Musulin in 1953.
A Frost circle is constructed by drawing a polygon whose number of edges is equal to the number of carbons of the given cyclic system, with one of the vertices pointing down. Then, a circle is drawn enclosing the polygon so...
A Frost circle is constructed by drawing a polygon whose number of edges is equal to the number of carbons of the given cyclic system, with one of the vertices pointing down. Then, a circle is drawn enclosing the polygon so...
4.2K
MOSFET: Enhancement Mode
259
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...
259
Molecular Compounds: Formulas and Nomenclature
42.7K
Molecular compounds or covalent compounds result when atoms share electrons to form covalent bonds. Since there is no electron transfer, molecular compounds do not contain ions; instead, they consist of discrete, neutral molecules.
42.7K

