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Synergistic effects of carboxymethyl cellulose and ZnO as alkaline electrolyte additives for aluminium anodes with a view towards Al-air batteries
journal contributionposted on 2016-12-15, 00:00 authored by J Liu, D Wang, D Zhang, L Gao, Tong Lin
The synergistic effects of carboxymethyl cellulose (CMC) and zinc oxide (ZnO) have been investigated as alkaline electrolyte additives for the AA5052 aluminium alloy anode in aluminium-air battery by the hydrogen evolution test, the electrochemical measurements and the surface analysis method. The combination of CMC and ZnO effectively retards the self-corrosion of AA5052 alloy in 4 M NaOH solution. A complex film is formed via the interaction between CMC and Zn2+ ions on the alloy surface. The carboxyl groups adsorbed on the surface of aluminium make the protective film more stable. The cathodic reaction process is mainly suppressed significantly. AA5052 alloy electrode has a good discharge performance in the applied electrolyte containing the composite CMC/ZnO additives.
JournalJournal of power sources
Pagination1 - 11
LocationAmsterdam, The Netherlands
Publication classificationC1 Refereed article in a scholarly journal
Copyright notice2016, Elsevier B.V.
CategoriesNo categories selected
Science & TechnologyPhysical SciencesTechnologyChemistry, PhysicalElectrochemistryEnergy & FuelsMaterials Science, MultidisciplinaryChemistryMaterials ScienceAluminium air batteryAluminium anodeAlkaline corrosionHydrogen evolutionElectrolyte additivesMILD-STEEL CORROSIONAA5052 ALLOY ANODEELECTROCHEMICAL-BEHAVIORADSORPTION BEHAVIORORGANIC-COMPOUNDSPURE ALUMINUMPERFORMANCEGALLIUMSYSTEMWATER