Hierarchical Graphitic Carbon Nitride-Zeolitic Imidazolate Framework-67 Nanostructures Adorned on Calcium Molybdate Nanospheres for High-Performance Supercapacitor Applications
- Authors
- Mangiri, Ramanadha; Lee, Chaehyeon; Kim, Kyeongmin; Lee, Junbeum; Chung, Eunhyea
- Issue Date
- May-2023
- Publisher
- AMER CHEMICAL SOC
- Citation
- ENERGY & FUELS, v.37, no.10, pp 7479 - 7489
- Pages
- 11
- Journal Title
- ENERGY & FUELS
- Volume
- 37
- Number
- 10
- Start Page
- 7479
- End Page
- 7489
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/91822
- DOI
- 10.1021/acs.energyfuels.3c00417
- ISSN
- 0887-0624
1520-5029
- Abstract
- Complex composite nanomaterials have recently received attention because of their enhanced electrochemical performance compared to single-structured materials. In this study, we synthesized calcium molybdate (CaMoO4) particles with a spherical shape and conducted surface modification to fabricate composite heterostructures on the CaMoO4 backbone using a simple two-step hydrothermal technique. To test their electrochemical characteristics, the produced hierarchical heterostructures were used as an electrode material for supercapacitors, exhibiting a cycling efficiency of 94% after 5000 cycles, a specific capacitance of 586 C g-1 at a current density of 1 A g-1, and good reversibility. These results demonstrate that the development of hierarchical heterostructures can significantly improve the electrochemical properties of materials by creating well-defined interfaces, increasing the surface area, and promoting efficient charge transfer, making them highly attractive for various applications in the field of energy storage and conversion.
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