Quantitative temporally and spatially resolved X-ray fluorescence microprobe characterization of the manganese dissolution-deposition mechanism in aqueous Zn/α-MnO<sub>2</sub> batteries
Daren Wu, Lisa M. Housel, Sung Joo Kim, Nahian Sadique, Calvin D. Quilty, Lijun Wu, Ryan Tappero, Sarah Nicholas, Steven N. Ehrlich, Yimei Zhu, Amy C. Marschilok, Esther S. Takeuchi, David C. Bock, Kenneth J. Takeuchi
Abstract
<italic>Operando</italic>, spatiotemporal resolved synchrotron X-ray fluorescence mapping measurements on a custom aqueous Zn/α-MnO<sub>2</sub> cell provided direct, quantitative evidence of a Mn dissolution-deposition faradaic mechanism that governs the electrochemistry.
Topics & Concepts
DissolutionAqueous solutionMicroprobeDeposition (geology)Characterization (materials science)SynchrotronManganeseElectrochemistryX-ray fluorescenceFluorescenceAnalytical Chemistry (journal)ChemistryMaterials scienceX-rayInorganic chemistryMineralogyElectrodeNanotechnologyPhysical chemistryOpticsMetallurgyEnvironmental chemistryGeologyPhysicsPaleontologySedimentAdvanced battery technologies researchAdvancements in Battery MaterialsElectrocatalysts for Energy Conversion