Waste to Wealth: Upcycling Waste Toner into Magnetic Fe3O4 and Conducting Polymer Hybrids for Enhanced Energy Storage Application

IF 2.5 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC Journal of Electronic Materials Pub Date : 2024-02-21 DOI:10.1007/s11664-024-10953-w

Pranav M. Jambhale, Vijaykiran N. Narwade, Mohammed Shariq, Kashinath A. Bogle, Mahendra D. Shirsat

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Abstract

Printers generate electronic waste in the form of used ink cartridges, which has an impact on resources such as plastics and precious metals. Toner metal oxide repurposed for supercapacitors could save valuable materials. Figuring out the optimal electrolyte concentration, on the other hand, is critical for optimizing supercapacitor performance and increasing energy/power density. This paper investigates the characteristics of waste toner-derived Fe₃O₄ and its composite with two conducting polymers, i.e., polyaniline (PANI) and polypyrrole (PPy) as electrode materials. With studies performed in 2 M, 4 M, and 6 M KOH electrolyte, a comparative analysis is made to understand the effect of electrolyte concentration on supercapacitor performance linked to the enhanced performance. The highest specific capacitance was achieved in 4 M KOH electrolyte which was calculated to be 319 F/g and 286 F/g at 10 mV/s composite synthesized with PPy and PANI, respectively, in a three-electrode assembly. The supercapacitor device performed well in terms of energy density and power density when tested in a Swagelok cell assembly. These outcomes offer significant insights into the potential of waste-derived materials for sustainable energy devices, implying a promising future for energy storage applications.

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变废为宝：将废墨粉升级再造为磁性 Fe3O4 和导电聚合物混合体，用于增强储能应用

打印机以使用过的墨盒的形式产生电子废物，这对塑料和贵金属等资源产生影响。将调色剂金属氧化物重新用于超级电容器可以节省宝贵的材料。另一方面，确定最佳电解质浓度对于优化超级电容器性能和提高能量/功率密度至关重要。本文研究了废碳粉衍生的Fe3O4及其与两种导电聚合物聚苯胺（PANI）和聚吡咯（PPy）作为电极材料的复合材料的特性。通过对2 M、4 M和6 M KOH电解质的研究，比较分析了电解质浓度对超级电容器性能的影响，从而提高了超级电容器的性能。在4 M KOH电解液中，聚吡啶和聚苯胺在10 mV/s速度下的比电容分别为319 F/g和286 F/g。在世伟洛克电池组件中测试时，超级电容器器件在能量密度和功率密度方面表现良好。这些结果为可持续能源设备中废物衍生材料的潜力提供了重要见解，这意味着能源存储应用的前景广阔。图形抽象

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.