为新兴的超级电容应用开发基于素的异原子聚糖增强石墨碳化物 (GCN) 碳化复合材料
Kumar Selvaraj1,2, Marisa Elisabet Spontón1,2, Diana Alejandra Estenoz1,2
1Instituto de Desarrollo Tecnológico para la Industria Química (INTEC), CONICET, Ruta Nacional 168, Km. 0, Santa Fe, 3000, Argentina. skumar21393@gmail.com.
Soft matter
|January 17, 2024
概括
这项研究开发了一种新的基于素的佐胺复合物与石墨碳化物 (GCN) 用于储能. 用GCN增强的材料显示出优越的热稳定性和电化学性能作为伪电容器.
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
- 聚合物化学 聚合物化学
背景情况:
- 开发先进的碳化材料来储存高能量的发展至关重要.
- 佐素树脂提供调节性质和热稳定性.
- 石墨碳化物 (GCN) 是能源应用的一个有前途的材料.
研究的目的:
- 为了合成一种新的基于诺林的佐素单体 (Q-xda).
- 准备和描述Q-xda/GCN复合材料用于储能应用.
- 评估复合材料的热,形态,电化学和疏水性质.
主要方法:
- 通过8 - 基林,基胺和甲的反应合成Q-xda单体.
- 制备Q-xda/GCN复合物,其中GCN含量各不相同 (5,10,15 wt%).
- 使用FT-IR,1H-NMR,XRD,TGA,SEM,电化学测试和接触角测量进行表征.
主要成果:
- Q-xda/GCN复合材料表现出较高的热稳定性和碳产量,与纯聚 (Q-xda) 相比.
- 含有15%重量%GCN的复合材料显示出最高的介电常数 (10.2) 和接触角度 (145°).
- 聚(Q-xda) + 15重% GCN 电极表现出优异的伪电容性能,具有更高的电容 (370 F g−1 在 6 A g−1) 和较低的电荷传输电阻 (20.8 Ω),以及在 2000 个周期中96.2%的循环效率.
结论:
- 合成的林基佐和其GCN复合物对先进的碳化材料有效.
- 强化GCN显著改善了热和电化学性能.
- 开发的Q-xda/GCN复合材料显示出用于高性能伪电容器应用的巨大潜力.
更多相关视频
12:00Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
12.3K
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
相关概念视频
02:18Network Covalent Solids
Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
01:10Sugars as Energy Storage Molecules
Sugar (a simple carbohydrate) metabolism (chemical reactions) is a classic example of the many cellular processes that use and produce energy. Living things consume sugar as a major energy source because sugar molecules have considerable energy stored within their bonds. Consumed carbohydrates have their origins in photosynthesizing organisms like plants. During photosynthesis, plants use the energy of sunlight to convert carbon dioxide gas into sugar molecules, like glucose. Because this...
01:17Accelerators
Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...
The effectiveness of calcium chloride can...
01:30Superplasticizers
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,...