Synthesis of novel ZnV2O4 spinel oxide nanosheets and their hydrogen storage properties

Faheem K. Butt, Chuanbao Cao, R. Ahmed, Waheed S. Khan, Tai Cao, Noriah Bidin, Ping Li, Qi Wan, Xuanhui Qu, Muhammad Tahir, Faryal Idrees

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

We report the synthesis of ZnV2O4 spinel oxide novel nanosheets via a template free route to explore its potential hydrogen storage properties for the first time. 2D layered nanostructures are excellent candidates for storage applications. This attracted our interest to synthesize novel spinel oxide nanosheets (NSNs) of ZnV2O4. The maximum value for hydrogen absorption in ZnV2O4 nanosheets at 473 K is 1.36 wt.% and 1.74 wt.% at 573 K, respectively. Our hydrogen storage measurements along ZnV2O4 reveal its superiority over previous reports on hydrogen absorption values concerning oxides, nitrides and chalcogenides. To understand the rate-limiting mechanism, various kinetics models are applied. The calculations show that kinetics is governed by 3D growth with constant interface velocity. The measurements point to ZnV 2O4 spinel oxide as a promising hydrogen storage material. PL measurements demonstrate the potential for violet/blue optoelectronic devices.

Original languageEnglish
Pages (from-to)894-899
Number of pages6
JournalCrystEngComm
Volume16
Issue number5
DOIs
Publication statusPublished - 7 Feb 2014

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