Enhanced electrical and thermal properties of (Cu, N) doped nano TiO2 incorporated polyaniline matrix synthesized using in situ chemical polymerization approach

IF 2.4 4区化学 Q3 CHEMISTRY, PHYSICAL

Ionics Pub Date : 2024-10-16 DOI:10.1007/s11581-024-05888-5

Emad M. Masoud, M. Khairy, Tariq Z. Abolibda, Arafat Toghan, Mostafa Y. Nassar, Saad Shaaban, Magdi E. A. Zaki, Tarek A. Yousef

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Abstract

An alternative to create novel multifunctional materials with a broad range of applications in energy storage systems is the development of nano composite hybrid materials with good qualities from the right combination of chemically different components. Herein, Polyaniline hybrid composites containing nano pure TiO₂ and nano doped (Cu, N) TiO₂ (25 wt. %) were prepared using in situ chemical polymerization approach. All structural characterizations showed the addition effect of both nano pure TiO₂ and nano doped (Cu, N) TiO₂ on the polyaniline matrix. The well dispersion of spherical nano pure TiO₂ and nano doped (Cu, N) TiO₂ particles inside the rods structure of polyaniline chains, forming the core–shell exhibited good modification for both thermal stability and electrical properties enhancement. The results showed that all nanocomposites have high thermal stability compared to pure polyaniline. The sample containing nano nitrogen—doped TiO₂ (NDPC2) delivered AC- conductivity value of 5 × 10^–4 Ω⁻¹.cm⁻¹ at room temperature as well as exhibited the highest dielectric constant value compared to the other ones with a value of 26. The studied samples have low dielectric loss values, suggesting that they are effective shielding materials. The same sample exhibited the highest surface area (32.2 m²/g) and pore volume (0.119 cc/g) compared to the others, making it a promising sample for diverse applications of energy storage systems.

Graphical abstract

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采用原位化学聚合法制备的（Cu， N）掺杂聚苯胺基纳米TiO2增强了其电学和热学性能

在储能系统中广泛应用的新型多功能材料的另一种选择是开发具有良好质量的纳米复合混合材料，这些材料是通过化学不同成分的正确组合而获得的。本文采用原位化学聚合法制备了纳米纯TiO2和纳米掺杂（Cu， N） TiO2 （25 wt. %）的聚苯胺杂化复合材料。所有的结构表征都显示了纳米纯TiO2和纳米掺杂（Cu， N） TiO2在聚苯胺基体上的加成效应。球形纳米纯TiO2和纳米掺杂（Cu， N） TiO2颗粒在聚苯胺链的棒状结构内分散良好，形成核-壳结构，表现出良好的热稳定性和电性能改性。结果表明，与纯聚苯胺相比，所有纳米复合材料都具有较高的热稳定性。含有纳米氮掺杂TiO2 （NDPC2）的样品的交流电导率值为5 × 10-4 Ω−1。Cm−1在室温下的介电常数值最高，为26。所研究的样品具有较低的介质损耗值，表明它们是有效的屏蔽材料。与其他样品相比，相同的样品具有最高的表面积（32.2 m2/g）和孔隙体积（0.119 cc/g），使其成为储能系统各种应用的有前途的样品。图形抽象

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来源期刊

Ionics 化学-电化学

CiteScore

5.30

自引率

7.10%

发文量

427

审稿时长

2.2 months

期刊介绍： Ionics is publishing original results in the fields of science and technology of ionic motion. This includes theoretical, experimental and practical work on electrolytes, electrode, ionic/electronic interfaces, ionic transport aspects of corrosion, galvanic cells, e.g. for thermodynamic and kinetic studies, batteries, fuel cells, sensors and electrochromics. Fast solid ionic conductors are presently providing new opportunities in view of several advantages, in addition to conventional liquid electrolytes.