Yusri Yusri, Dahlang Tahir, Heryanto Heryanto, Abdelilah Akouibaa, Suprapto Suprapto, Roni Rahmat
Abstract: Cuprum–zinc alloys prepared using mechanical alloying with varied milling times is a potential candidate for aqueous battery applications. The crystallite size change was analyzed by the X-ray diffraction spectra showed for Cu from 28.03 to 7.62 nm as a result of grinding. Likewise, Zn experienced a reduction in crystallite size from 25.12 to 5.26 nm. The existing functional groups observed with FTIR showed the largest absorption values in Cu–O, C=O, and Zn–O groups, respectively. Quantitative analysis by using Kramers–Kronig shows the broadening of optical vibrational which has an impact on increasing the intensity of the ε2 for all samples consistently. It was found that the combination of Cu S10 with Zn S7 as the electrode with the smallest crystallite size, the widest Δ(LO-TO), reduced d-spacing change, and highest ε2 showed promising average voltage stability as a secondary battery with 0.86 V and 1.87 mA. © The Author(s), under exclusive licence to The Materials Research Society 2024.
Department of Phsyics, Universitas Hasanuddin, Makassar, 90245, Indonesia; Department of Phsyics, Faculty of Sciences Ben M’Sik, Hassan II University Casablanca, Casablanca, 7955, Morocco; Department of Mechanical Engineering, State University of Medan, Medan, 44332, Indonesia; Department of Phsyics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, South Korea
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