评估基于化学活化(KOH/H3PO4)研磨果壳生物炭的锌离子混合超级电容器

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Manisha Gautam , Tarun Patodia , Pushpendra Kushwaha , Madhu Agrawal , Kanupriya Sachdev Prof. , Himmat Singh Kushwaha
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引用次数: 0

摘要

在不断进步的储能技术领域,天然生物质能源在缓解环境限制方面的功效日益突出。本研究深入探讨了不断发展的储能设备,特别是电池、超级电容器和新兴的锌离子混合超级电容器(ZIHSC)领域。研究重点集中在生物质衍生的高活性碳上,这是一个新兴的研究领域,因其多样性、环境兼容性、独特的结构属性和独特的表面特征而备受推崇。本研究以 ZIHSC 应用为背景,对从碎果壳(GS)中提取的活性炭进行了比较分析。重点在于直接的生物炭合成过程和随后的化学活化的重要性。使用 H3PO4 合成的活化生物炭被命名为 GS-H3PO4,与预先碳化的碎果壳(GS-Biochar)相比,它的布鲁纳-艾美特-特勒(B.E.T.)表面积明显更高。此外,它的比电容为 199 F g-1(2 mV s-1)。这些发现强调了 H3PO4 衍生活性炭在优化锌离子混合超级电容器阴极性能方面的巨大潜力。这项研究加深了人们对生物质衍生材料的了解,深入揭示了合成方法与电化学性能之间微妙的相互作用,这对推进可持续能源存储解决方案至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Evaluation of zinc-ion hybrid super-capacitor based on chemically activated (KOH/H3PO4) ground nutshell biochar

Evaluation of zinc-ion hybrid super-capacitor based on chemically activated (KOH/H3PO4) ground nutshell biochar

In the realm of advancing energy storage technologies, the efficacy of natural biomass sources in mitigating environmental constraints has gained prominence. This study delves into the evolving landscape of energy storage devices, specifically batteries, super-capacitors, and the nascent domain of zinc-ion hybrid super-capacitors (ZIHSC). The focus centers on biomass-derived highly activated carbon, a burgeoning field of research esteemed for its diversity, environmental compatibility, distinctive structural attributes, and unique surface characteristics. This investigation presents a comparative analysis of activated carbons derived from ground nutshell (GS) in the context of ZIHSC applications. Emphasis is placed on the significance of a straightforward biochar synthesis process and subsequent chemical activation. The activated biochar, denoted as GS-H3PO4 and synthesized using H3PO4, exhibits a discernibly higher Brunauer Emmett Teller (B.E.T.) surface area when juxtaposed with pre-carbonized ground nutshell (GS-Biochar).The ZIHSC cell incorporating GS-H3PO4 manifests noteworthy energy density metrics, registering at 50.28 Wh Kg−1 (100 W Kg−1) and 11 Wh Kg−1 (2 kW Kg−1). Additionally, it demonstrates a specific capacitance of 199 F g−1 (2 mV s−1). These findings underscore the promising potential of H3PO4-derived activated carbon in optimizing cathode performance for Zinc-ion hybrid super-capacitors. This study contributes to the growing understanding of biomass-derived materials, offering insights into the nuanced interplay between synthesis methods and electrochemical properties, crucial for advancing sustainable energy storage solutions.

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来源期刊
Carbon Trends
Carbon Trends Materials Science-Materials Science (miscellaneous)
CiteScore
4.60
自引率
0.00%
发文量
88
审稿时长
77 days
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