操纵具有不同形状和相关多功能的导电聚合物水凝
Hao Huang1, Hong-Tao Cong1, Zewen Lin1
1College of Materials, College of Physical Science and Technology, MOE Key Laboratory of High Performance Ceramic Fibers, Xiamen University, Xiamen, 361005, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|January 27, 2024
概括
研究人员开发了一种新方法,在室温下制造轻质导电聚合物 (CP) 水凝. 这种技术允许各种形状,提高能源设备和传感器的性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 纳米技术纳米技术
背景情况:
- 导电聚合物 (CPs) 对于先进的应用,如储能和传感,至关重要.
- 现有的制造CP水凝的方法通常涉及恶劣的条件,复杂的加工或不必要的化学物质.
- 需要简单和多功能技术来创建可控制形状的CP水凝.
研究的目的:
- 为了引入一种新的,两步制造路径,用于导出聚合物凝.
- 为了在环境条件下实现可控制的聚氨 (PANI) 和聚烯液体的合成.
- 为了证明这些水凝的加工成各种宏观形状.
主要方法:
- 一个两步过程,涉及凝的形状异性型纳米氧化剂,随后是in-situ氧化聚合.
- 用于凝制造的使用环境条件.
- 采用各种材料加工技术,以获得不同的PANI水凝形状 (球体,电线,薄膜,独立的物体).
主要成果:
- 通过使用拟议的方法,成功制造了聚氨 (PANI) 和聚烯水凝.
- 证明了将PANI水凝加工成多个定义的形状的能力.
- 与散装材料相比,具有特定形状的轻质PANI水凝在超级电容器,气体传感器和染料吸附剂中的电极性能得到了提高.
结论:
- 开发的方法提供了一种通用,可控制和环境条件的方法,用于制造导电的聚合物水凝.
- 形成各种形状的能力显著提高了CP水凝的功能性质,用于各种应用.
- 这项工作有助于将轻质,形状定义的导电聚合物结构集成到下一代功能设备中.
更多相关视频
12:07Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning
Published on: April 16, 2018
13.5K
08:50Easy Manipulation of Architectures in Protein-based Hydrogels for Cell Culture Applications
Published on: August 4, 2017
6.8K
相关概念视频
Cohesion
Cohesion is the attraction between molecules of the same type, such as water molecules. Water molecules have an overall neutral charge but are polar molecule. An oxygen atom in one water molecule has a partial negative charge that can bind to a hydrogen atom with a partial positive charge in a second water molecule, forming a hydrogen bond. Each water molecule can form up to four hydrogen bonds with other water molecules. Hydrogen bonds are responsible for water's cohesive nature.
On a surface,...
On a surface,...
EDTA: Chemistry and Properties
Polydentate ligands are most widely used in complexometric titrations because they form more stable complexes with the metal ions than mono- or bidentate ligands due to the chelate effect. Examples of polydentate ligands are ethylenediaminetetraacetic acid (EDTA), crown ethers, and cryptands. The most important feature of optimal polydentate ligands is the ability to form 1:1 complexes in a single-step process. Amino carboxylic acid derivatives are frequently used as complexing agents. EDTA is...
Colloidal precipitates
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
Complexometric Titration: Ligands
Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
Plasticizers
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Superplasticizers
Superplasticizers are advanced admixtures that enhance the workability of concrete by lowering the water content without compromising the strength of the material. These substances are highly effective water reducers, improving concrete flow, making it easier to work with, and enabling concrete to reach inaccessible areas or densely reinforced sections without mechanical vibration. The key components in superplasticizers are either sulfonated melamine or naphthalene formaldehyde condensates,...
