由 5-磺基间苯二甲酸和 4,4-联吡啶衍生的氧化还原活性钴基双连接金属有机框架用于超级电容器

IF 5.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Research Bulletin Pub Date : 2024-10-01 DOI:10.1016/j.materresbull.2024.113123

Javed Hussain Shah , Muhammad Shahbaz , Shahzad Sharif , Ghulam Ullah , Sundas Shahzad , Khurram Shahzad Munawar , Onur Şahin , Kareem Yusuf , Hijaz Ahmad

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引用次数: 0

摘要

在这项研究中，我们采用声化学方法合成、表征并广泛比较了由 5-磺基异酞酸、4,4-联吡啶和金属钴衍生的两种材料的电化学特性。晶格结构中含有 5-SIP 的钴-联吡啶复合物（RG-41）显示出主要的电容行为，而 Co-SIP-Bpy MOF（RG-42）则由于存在负责电子传递的配位连接而表现出显著的假电容特性。由于 RG-42 具有有效的电化学特性，我们将其付诸实践，制造出了一种具有出色电化学特性的混合器件，其循环稳定性高达 92%，能量密度和功率密度在 1 A/g 时分别为 51.41 Wh/kg 和 800 W/kg。利用邓恩方法获得了半电化学电池和混合装置的电容扩散贡献。这些结果凸显了 RG-42 作为一种具有竞争力的电极材料在未来储能应用中的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Redox active cobalt based bi-linker metal organic frameworks derived from 5-sulfoisopthalic acid and 4,4-bipyridine for supercapacitor

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Redox active cobalt based bi-linker metal organic frameworks derived from 5-sulfoisopthalic acid and 4,4-bipyridine for supercapacitor

In this research study, we have synthesized, characterized and extensively compared the electrochemical characteristics of two materials derived from 5-sulphoisophtalic acid, 4,4-bipyridine and cobalt metal using sonochemical method. Cobalt-bipyridine complex with 5-SIP in lattice structure (RG-41) showed predominant capacitive behavior whereas Co-SIP-Bpy MOF (RG-42) exhibited significant pseudocapacitive attributes due to the presence of coordination linkage responsible for the electron transfer. Due to the effective electrochemical properties of RG-42, we implemented it practically by fabricating a hybrid device with outstanding electrochemical features, demonstrating impressive 92 % cyclic stability with energy density and power density of 51.41 Wh/kg and 800 W/kg at 1 A/g, respectively. Dunn's method was employed to obtain capacitive-diffusive contributions for both half-electrochemical cells as well as hybrid device. These results underscored the potential of RG-42 as a competitive electrode material for future energy storage applications.

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来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.