biostudies-literatureYang KNational Science Foundation8251-8259https://www.ebi.ac.uk/biostudies/studies/S-EPMC10925852biostudies-literatureUnknown14(12)CoMoO₄ is a promising battery-type supercapacitor electrode material that can offer relatively high storage capacity and cycle stability. In this work, we investigate the role of the crystalline phase of CoMoO₄ in determining these performance parameters. The hydrate phase of CoMoO₄ was synthesized on a nickel foam substrate <i>via</i> hydrothermal reaction with subsequent annealing under an inert atmosphere leading to the formation of the β-phase CoMoO₄. Similar nanoplate morphologies were observed in all of the samples. The hydrate-phase CoMoO₄ demonstrates larger specific capacity than the annealed β-phase CoMoO₄. Besides, the samples synthesized at lower temperatures have better rate capability than the sample annealed at higher temperatures. However, the hydrate phase had worse long-term stability compared to the β-phase samples.RSC advancesThe influence of crystal structures on the performance of CoMoO₄ battery-type supercapacitor electrodes.PMC10925852CBET-1803758Kim BYang KCline JPKiely CJMcIntosh SfalseThe influence of crystal structures on the performance of CoMoO₄ battery-type supercapacitor electrodes.CoMoO₄ is a promising battery-type supercapacitor electrode material that can offer relatively high storage capacity and cycle stability. In this work, we investigate the role of the crystalline phase of CoMoO₄ in determining these performance parameters. The hydrate phase of CoMoO₄ was synthesized on a nickel foam substrate <i>via</i> hydrothermal reaction with subsequent annealing under an inert atmosphere leading to the formation of the β-phase CoMoO₄. Similar nanoplate morphologies were observed in all of the samples. The hydrate-phase CoMoO₄ demonstrates larger specific capacity than the annealed β-phase CoMoO₄. Besides, the samples synthesized at lower temperatures have better rate capability than the sample annealed at higher temperatures. However, the hydrate phase had worse long-term stability compared to the β-phase samples.2024-01-01T00:00:00Z2024 Mar2025-04-22T16:21:10.339Z2025-04-06T01:40:54.823ZS-EPMC109258523846918310.1039/d3ra05878f