- Title
- Layer-by-layer nanohybrids of Ni-Cr-LDH intercalated with 0D polyoxotungstate for highly efficient hybrid supercapacitor
- Creator
- Padalkar, Navnath S.; Sadavar, Shrikant V.; Lokhande, Chandrakant D.; Gunjakar, Jayavant L.; Shinde, Rohini B.; Patil, Akash S.; Patil, Umakant M.; Dhawale, Dattatray S.; Bulakhe, Ravindra N.; Kim, Hyungsang; Im, Hyunsik; Vinu, Ajayan
- Relation
- Journal of Colloid and Interface Science Vol. 616, Issue 15 June 2022, p. 548-559
- Publisher Link
- http://dx.doi.org/10.1016/j.jcis.2022.02.091
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2022
- Description
- The layer-by-layer mesoporous nanohybrids of Ni-Cr-layered double hydroxide (Ni-Cr-LDH) and polyoxotungstate nanoclusters (Ni-Cr-LDH-POW) are prepared via exfoliation reassembling strategy. The intercalative hybridization of Ni-Cr-LDH with POW nanoclusters leads to forming a layer-by-layer stacking framework with significant expansion of the interplanar spacing and surface area. The aqueous hybrid supercapacitor (AHSC) and all-solid-state hybrid supercapacitor (SSHSC) devices are fabricated using Ni-Cr-LDH-POW nanohybrid as a cathode and reduced graphene oxide (rGO) as an anode material. Notably, the NCW-2//rGO AHSC device delivers an ED of 43 Wh kg−1 at PD of 1.33 kW kg−1 and excellent electrochemical stability over 10,000 charge–discharge cycles. Moreover, NCW-2//rGO SSHSC exhibits an ED of 34 Wh kg−1 at PD of 1.32 kW kg−1 with capacitance retention of 86% after 10,000 cycles. These results highlight the excellent electrochemical functionality and advantages of the Ni-Cr-LDH-POW nanohybrids as a cathode for hybrid supercapacitors.
- Subject
- 2D Ni-Cr-LDH; OD polyoxotungstate; hybrid supercapacitor; intercalation; nanohybrids
- Identifier
- http://hdl.handle.net/1959.13/1469298
- Identifier
- uon:48203
- Identifier
- ISSN:0021-9797
- Language
- eng
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