An investigation of shelf-life of strontium doped LaMnO3 materials
Source abstract
Abstract
The shelf-life of Sr doped LaMnO3 (LSM) materials of varying stoichiometric compositions prepared by wet chemical synthesis was investigated under storage conditions of low and high humidity at ambient temperature for ∼350 days. It has been found that the adhesion, chemical stability and stability of the electrode performance of LSM materials are critically dependent on the A-site stoichiometry (i.e., (La+Sr)/Mn ratio) of the LSM materials and much less dependent on storage conditions (humidity level and storage time) over the period investigated. In this respect, LSM materials with stoichiometric and sub-stoichiometric compositions where (La+Sr)/Mn≤1 are stable and LSM with A-site sub-stoichiometry ((La+Sr)/Mn≤∼0.9) is effective in achieving good adherence, high chemical stability and high stability of electrode performance.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Gas Sensing Nanomaterials and Sensors · Solid-state spectroscopy and crystallography
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