Solvothermal synthesis of high-performance Ni-Co layered double hydroxide nanofoam electrode for electrochemical energy storage

Patel, Rajkumar, Inamdar, Akbar I., Hou, Bo ORCID: https://orcid.org/0000-0001-9918-8223, Cha, SeungNam, Ansari, Abu Talha, Gunjakar, Jayavant L., Im, Hyunsik and Kim, Hyungsang 2017. Solvothermal synthesis of high-performance Ni-Co layered double hydroxide nanofoam electrode for electrochemical energy storage. Current Applied Physics 17 (4) , pp. 501-506. 10.1016/j.cap.2017.01.020

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Abstract

A nanofoam nickel cobalt layered double hydroxide (NiCo(OH)2) electrode film is fabricated on a stainless-steel substrate with the use of a simple one-step solvothermal process. The nanofoam NiCo(OH)2 electrode exhibits a high specific capacitance of 2710.2 F/g at a current density of 9.1 A/g, and a good capacity retention of ∼70% after 2000 charge-discharge cycles at a high current density of 31.8 A/g. An energy density of 60.23 Wh/kg is obtained at a power density of 1.8 kW/kg. The excellent electrochemical energy storage performance of the NiCo(OH)2 electrode is due to the synergetic effect of a significantly improved ionic diffusion and an effective charge transfer, which is linked to a well-dispersed interconnected nanofoam morphology and binder-free direct contact with the current collector.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Publisher:	Elsevier
ISSN:	1567-1739
Date of First Compliant Deposit:	31 March 2020
Date of Acceptance:	20 January 2017
Last Modified:	04 Dec 2024 00:45
URI:	https://orca.cardiff.ac.uk/id/eprint/129542

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