Perspectives in the Recycling of High Sulphatized Electrodes from Lead Acid Batteries. (13th June 2021)

• Record Type: Journal Article
• Authors: Mihaila, L.; Unguresan, M.; Rada, M.; Popa, A.; Macavei, S.; Vermesan, H.; Rada, S.
• Is Part Of: Analytical letters. Volume 54:Number 9(2021)
• Page Start: 1414
• Page End: 1422
• Publication Date: 2021-06-13
• Subjects: CuO -- cyclic voltammetry (CV) -- electron paramagnetic resonance (EPR) spectroscopy -- Fourier transform infrared (FTIR) spectroscopy -- lead-acid battery -- MnO2 -- X-ray diffraction (XRD); Chemistry, Analytic -- Periodicals; Chemistry, Analytic -- Abstracts; 543
• DOI: 10.1080/00032719.2020.1803349
• Languages: English
• ISSNs: 0003-2719

Abstract

Abstract: The structural modifications of the infrared (IR) bands induced by the CuO and MnO2 addition in the recycled Pb-PbO2 host matrix are due to the bending modes of Pb-O-Pb linkages, the decrease of intensity of sulfate ions and the random intercalation of the [CuO n ] and [MnO n ] structural units. Electron paramagnetic resonance (EPR) measurements show that the copper ions exist in two stable valence states as Cu +1 and Cu +2 ions. The cyclic voltammogram of the electrode containing 5 mol % CuO does not show hydrogen evolution reactions and produces a removal of passivation phenomena by an increase in the residual current across the potential range between 0 and 2 V.