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- Title
Hydrothermal Synthesis of Binder-Free Metallic NiCo 2 O 4 Nano-Needles Supported on Carbon Cloth as an Advanced Electrode for Supercapacitor Applications.
- Authors
Abbas, Qasim; Siyal, Sajid Hussain; Mateen, Abdul; Hassan, Najam Ul; Idrees, Asim; Rehman, Zia Ur; Din, ElSayed M. Tag El; Bajaber, Majed A.; Javed, Muhammad Sufyan
- Abstract
It is of great significance to design electrochemical energy conversion and storage materials with excellent performance to fulfill the growing energy demand. Bimetallic cobalt/nickel-based electrode materials exhibit excellent electrical conductivity compared to mono oxides. However, their potential as electrode materials for high-performance supercapacitors (SCs) is limited because of their poor cycling stability and high-capacity fading. This work demonstrates the synthesis of binder-free bimetallic NiCo2O4 nano-needles supported on CC (NCO@CC) via a facile and scalable hydrothermal process. Excellent electrical conductivity and interconnected nanostructure of NCO@CC nano-needles provide the fast transfer of electrons with numerous channels for ion diffusion. Owing to such features, the binder-free NCO@CC electrode for SC discloses excellent specific capacitance (1476 Fg−1 at 1.5 Ag−1) with 94.25% capacitance retention even after 5000 cycles. From these outstanding electrochemical performances, it can be inferred that NCO@CC nano-needle array-structured electrodes may be potential candidates for SC applications.
- Subjects
SUPERCAPACITOR electrodes; ENERGY conversion; ION channels; ENERGY storage; ELECTRODE potential; ELECTRIC conductivity; HYDROTHERMAL synthesis
- Publication
Materials (1996-1944), 2022, Vol 15, Issue 13, p4499
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma15134499