Sustainable Stabilization of Bimetallic MOF via Bamboo-Derived Activated Carbon for Supercapacitor Applications

IF 1.9 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
Sindhu Ramachandran, Anit Joseph, Tiju Thomas
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Abstract

Metal-organic frameworks (MOFs) are frequently employed as electrode materials for supercapacitors due to their high specific surface area and tunable pore structures. However, this class of materials suffers from low conductivity and cyclic stability, which deteriorates their capacitive performance. Herein, we made a simple hydrothermal synthesis approach to prepare a bimetallic MOF and activated carbon (AC) composite. The easy availability, extremely cheap, and porous bamboo structure makes it suitable for AC production. It exhibits a distinct structure, where the NiCo-MOF nano flakes are outspreaded on the ACs’ surface. Compared with the pristine NiCo-MOF, the composite has enhanced electrochemical performance. The specific capacitance of NiCo-MOF and NiCo-MOF/AC in three electrode measurements are 420 F g−1 and 685 F g−1. It exhibits a 63% improvement in particular capacitance. The rate capability of composite electrodes is about 60% when the current density at 12 A g−1. Also, it exhibits good cyclic stability of about 91% after 1000 cycles at 5 A g−1. This study shows that soft, chemically synthesized, bimetallic MOF/bamboo-derived AC can be a promising electrode material for SC applications.

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来源期刊
ChemistrySelect
ChemistrySelect Chemistry-General Chemistry
CiteScore
3.30
自引率
4.80%
发文量
1809
审稿时长
1.6 months
期刊介绍: ChemistrySelect is the latest journal from ChemPubSoc Europe and Wiley-VCH. It offers researchers a quality society-owned journal in which to publish their work in all areas of chemistry. Manuscripts are evaluated by active researchers to ensure they add meaningfully to the scientific literature, and those accepted are processed quickly to ensure rapid online publication.
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