Please use this identifier to cite or link to this item: http://dspace.iitrpr.ac.in:8080/xmlui/handle/123456789/3748
Title: Modified KBBF-like material for energy storage applications: ZnNiBO3(OH) with enhanced cycle life
Authors: Hussain, I.
Hussain, T.
Ahmad, M.
Ma, X.
Javed, M.S.
Lamiel, C.
Chen, Y.
Ahuja, R.
Zhang, K.
Keywords: Be-free KBBF
Nontoxic KBBF
ZnNiBO3(OH)
Cycle stability
High-energy density
Issue Date: 26-Jul-2022
Abstract: Not only are new and novel materials sought for electrode material development, but safe and nontoxic materials are also highly being intensively investigated. Herein, we prepare ZnNiBO3(OH) (ZNBH), a modified and Be-free KBe2BO3F2 (KBBF) family member as an effective electrode material. The novel ZNBH resembles the KBBF structure but with reinforced structure and bonding, in addition to well-incorporated conductive metals benefiting supercapacitor applications. The enhanced electronic properties of ZNBH are further studied by means of density functional theory calculations. The as-prepared ZNBH electrode material exhibits a specific capacity of 746 C g–1 at a current density of 1 A g–1. A hybrid supercapacitor (HSC) device is fabricated and successfully illuminated multiple color LEDs. Interestingly, even after being subjected to long charge–discharge for 10 000 cycles, the ZNBH//AC HSC device retains 97.2% of its maximum capacity, indicating the practicality of ZNBH as an electrode material.
URI: http://localhost:8080/xmlui/handle/123456789/3748
Appears in Collections:Year-2022

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