Impact of hydrochloric acid doping on polyaniline conductivity and piezoelectric performance in polyaniline/bismuth oxyiodide nanocomposites

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2024-11-08 DOI:10.1016/j.compositesb.2024.111960

Bartłomiej Toroń , Tushar Kanti Das , Mateusz Kozioł , Piotr Szperlich , Mirosława Kępińska

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Abstract

This study investigates the impact of hydrochloric acid (HCl) doping, ranging from 0.2 M to 1.25 M, on the conductivity of polyaniline (PANI) and the piezoelectric performance of polyaniline/bismuth oxyiodide (PANI/BiOI) nanocomposites (NCs). Two distinct methods for fabricating NCs based on PANI and bismuth oxyiodide (BiOI) are proposed. Two distinct methods for fabricating PANI/BiOI NCs are proposed, and their optical and electrical properties are systematically examined. The direct allowed energy bandgap of the NCs is found to be approximately 1.9 eV. The piezoelectric performance, attributed to the 2D Janus structure of BiOI, is explored in detail, with the bulk piezoelectric coefficient measured at 1.43 (65) pm/V. Sensitivity to pressure interaction reached 21.1 (92) mV/bar, and the generated power was 5.09 nW for air pressure excitation in a composite consisting of 37.5 wt% BiOI and 62.5 wt% PANI doped with 0.2 M HCl, fabricated in-situ. The results demonstrate precise control over key parameters, including the fabrication method, sample thickness, HCl doping concentration, and BiOI content, highlighting the significant potential for enhancing nanogenerator functionality. These findings provide valuable insights into improving the performance of piezoelectric materials for energy harvesting technologies.

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盐酸掺杂对聚苯胺/氧碘化铋纳米复合材料中聚苯胺电导率和压电性能的影响

本研究探讨了盐酸（HCl）掺杂（0.2 M 至 1.25 M）对聚苯胺（PANI）电导率和聚苯胺/氧碘化铋（PANI/BiOI）纳米复合材料（NCs）压电性能的影响。提出了两种不同的方法来制造基于 PANI 和氧碘化铋（BiOI）的 NC。本文提出了两种不同的 PANI/BiOI NC 制备方法，并系统地研究了它们的光学和电学特性。发现 NC 的直接允许能带隙约为 1.9 eV。对压电性能进行了详细探讨，压电系数测量值为 1.43 (65) pm/V。在由 37.5 wt% BiOI 和 62.5 wt% 掺杂 0.2 M HCl 的 PANI 组成的复合材料中，原位制造的压力激励灵敏度达到 21.1 (92) mV/bar，产生的功率为 5.09 nW。结果表明，关键参数（包括制造方法、样品厚度、HCl 掺杂浓度和 BiOI 含量）得到了精确控制，凸显了增强纳米发电机功能的巨大潜力。这些发现为提高能量收集技术用压电材料的性能提供了宝贵的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.