T. Singha, T. Kansaard, Y. Chuminjak, N. Pijarn, S. Intarasiri, S. Wannapop, A. Somdee. (2025). Study of spinel ZnNixMnxCo2-2xO4 (x = 0, 0.25, 0.5, 0.75, and 1.0) nanomaterials for supercapacitor electrode applications by hydrothermal synthesis. Journal of Ovonic Research, 21(2), 225-234. https://doi.org/10.15251/JOR.2025.212.225