Enaiet Allah Abeer, Mohamed Fatma
Department of Chemistry, Faculty of Science, Beni-Suef University 62514 Beni-Suef Egypt
Materials Science Lab, Chemistry Department, Faculty of Science, Beni-Suef University Beni-Suef 62514 Egypt.
Nanoscale Adv. 2024 Sep 3;6(21):5409-19. doi: 10.1039/d4na00121d.
The patterning of functional structures is crucial in the field of materials science. Despite the enticing nature of two-dimensional surfaces, the task of directly modeling them with regular structures remains a significant challenge. Here we present a novel method to pattern a two-dimensional polymer in a controlled way assisted by chemical polymerization, which is confirmed through discernible observation. The fabrication process involves polymerization to create 2D layers of polypyrrole (PPy) on extended 2D TiO nanoribbons, resulting in oriented arrays known as 2D PPy/TiO. These arrays exhibit enhanced electrochemical performance, making them ideal for supercapacitor applications. The skeleton structure of this material is distinctive, characterized by a homogeneous distribution of layers containing various elements. Additionally, it possesses a large contact surface, which effectively reduces the distance for ion transport and electron transfer. The 2D PPy/TiO electrode has a maximum specific capacitance of 280 F g at an applied current density of 0.5 A g. Moreover, it demonstrates excellent rate capability and cycling stability. Therefore, this approach will open an avenue for improving polymerization-based patterning toward recommended applications.
功能结构的图案化在材料科学领域至关重要。尽管二维表面具有诱人的特性，但用规则结构直接对其进行建模的任务仍然是一项重大挑战。在此，我们提出一种在化学聚合辅助下以可控方式对二维聚合物进行图案化的新方法，这通过可辨别的观察得到证实。制造过程涉及在扩展的二维TiO纳米带上聚合以创建聚吡咯（PPy）的二维层，从而形成称为二维PPy/TiO的定向阵列。这些阵列表现出增强的电化学性能，使其成为超级电容器应用的理想选择。这种材料的骨架结构独特，其特征在于包含各种元素的层均匀分布。此外，它具有大的接触表面，有效地减少了离子传输和电子转移的距离。二维PPy/TiO电极在施加电流密度为0.5 A g时的最大比电容为280 F g。此外，它还表现出优异的倍率性能和循环稳定性。因此，这种方法将为改进基于聚合的图案化以用于推荐应用开辟一条途径。
