Enhancing porous electrodes through carbon activation of palm shell with gel activating agent

IF 3.1 3区化学 Q2 POLYMER SCIENCE

Polymer Bulletin Pub Date : 2024-07-11 DOI:10.1007/s00289-024-05414-7

Senthil Kumar Kandasamy, R. Ramyea, S. Tharani, Monika Michalska

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Abstract

Activated carbon derived from biomass offers several advantages, including high surface area, customizable pore sizes, abundance, resilience across temperatures, and cost-effectiveness. This study focuses on exploring the potential of palm shell as a renewable alternative for supercapacitor electrode materials. Specifically, it investigates the utilization of a gel composed of NaOH and PVA for activating carbon. Here, palm shell undergoes chemical activation, and its resulting activated carbon’s structural and physicochemical properties are comprehensively examined using XRD, FTIR, and BET measurements. The investigation delves into the electrochemical properties using cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy of electrodes fabricated from chemically activated carbon derived from palm shells. The activated carbon enhanced a surface area of 216.062 m² g⁻¹ and a pore volume of 0.1468 cm³ g⁻¹, and it is produced through the innovative approach of gel-based activation. This research highlights the potential of palm shell-derived activated carbon as a viable, sustainable, and efficient material for supercapacitor electrodes.

Graphical abstract

Abstract Image

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通过使用凝胶活化剂对棕榈壳进行碳活化，增强多孔电极的性能

从生物质中提取的活性炭具有多种优势，包括表面积大、孔隙大小可定制、数量多、跨温度适应性强以及成本效益高。本研究的重点是探索棕榈壳作为超级电容器电极材料的可再生替代品的潜力。具体来说，它研究了如何利用由 NaOH 和 PVA 组成的凝胶来活化碳。在这里，棕榈壳经历了化学活化，并利用 XRD、傅立叶变换红外光谱和 BET 测量法对其生成的活性炭的结构和理化特性进行了全面研究。研究使用循环伏安法、电静态充放电法和电化学阻抗光谱法对棕榈壳化学活化碳制成的电极的电化学特性进行了深入研究。这种活性炭的表面积为 216.062 平方米 g-1，孔体积为 0.1468 立方厘米 g-1，是通过凝胶活化的创新方法制得的。这项研究凸显了棕榈壳衍生活性炭作为一种可行、可持续和高效的超级电容器电极材料的潜力。图文摘要

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来源期刊

Polymer Bulletin 化学-高分子科学

CiteScore

6.00

自引率

6.20%

发文量

审稿时长

5.5 months

期刊介绍： "Polymer Bulletin" is a comprehensive academic journal on polymer science founded in 1988. It was founded under the initiative of the late Mr. Wang Baoren, a famous Chinese chemist and educator. This journal is co-sponsored by the Chinese Chemical Society, the Institute of Chemistry, and the Chinese Academy of Sciences and is supervised by the China Association for Science and Technology. It is a core journal and is publicly distributed at home and abroad. "Polymer Bulletin" is a monthly magazine with multiple columns, including a project application guide, outlook, review, research papers, highlight reviews, polymer education and teaching, information sharing, interviews, polymer science popularization, etc. The journal is included in the CSCD Chinese Science Citation Database. It serves as the source journal for Chinese scientific and technological paper statistics and the source journal of Peking University's "Overview of Chinese Core Journals."