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Pathak M, Mane P, Chakraborty B, Cho JS, Jeong SM, Rout CS. Construction of Nickel Molybdenum Sulfide/Black Phosphorous 3D Hierarchical Structure Toward High Performance Supercapacitor Electrodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310120. [PMID: 38279619 DOI: 10.1002/smll.202310120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/09/2024] [Indexed: 01/28/2024]
Abstract
Supercapacitors (SCs) with outstanding versatility have a lot of potential applications in next-generation electronics. However, their practical uses are limited by their short working potential window and ultralow-specific capacity. Herein, the facile one-step in-situ hydrothermal synthesis is employed for the construction of a NiMo3S4/BP (black phosphorous) hybrid with a 3D hierarchical structure. After optimization, the NiMo3S4/BP hybrid displays a high specific capacitance of 830 F/g at 1 A/g compared to the pristine NiMo3S4 electrode. The fabricated NiMo3S4/BP//NiCo2S4/Ti3C2Tx asymmetric supercapacitor exhibits a better specific capacitance of 120 F/g at 0.5 A/g, which also demonstrates a high energy density of 54 Wh/kg at 1148.53 W/kg and good cycle stability with capacity retention of 86% and 97% of Coulombic efficiency after 6000 cycles. Further from the DFT simulations, the hybrid NiMo3S4/BP structure shows higher conductivity and quantum capacitance, which demonstrate greater charge storage capability, due to enhanced electronic states near the Fermi level. The lower diffusion energy barrier for the electrolyte K+ ions in the hybrid structure is facilitated by improved charge transfer performance for the hybrid NiMo3S4/BP. This work highlights the potential significance of hybrid nanoarchitectonics and compositional tunability as an emerging method for improving the charge storage capabilities of active electrodes.
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Affiliation(s)
- Mansi Pathak
- Centre for Nano and Material Sciences, Jain (deemed-to-be University), Jain Global Campus, Kanakapura Road, Bangalore, 562112, India
| | - Pratap Mane
- Seismology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Brahmananda Chakraborty
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Mumbai, 400094, India
| | - Jung Sang Cho
- Department of Engineering Chemistry, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Sang Mun Jeong
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Chandra Sekhar Rout
- Centre for Nano and Material Sciences, Jain (deemed-to-be University), Jain Global Campus, Kanakapura Road, Bangalore, 562112, India
- Department of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
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