Wet-chemical synthesis of CeO2 for electrochemical applications
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2019
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INTERNATIONAL CONFERENCE ON HIGH-PERFORMANCE CERAMICS, 11th
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Resumo
Nanostructured metal oxides have been extensively studied in the last decades for their
physicochemical properties, which depend on the size and shape of their nanostructures.
The same chemical element or compound can exhibit different properties in different
shapes and dimensions. Metal oxides are a class of inorganic compounds very important
in many areas of materials science due to their unique properties that enable them to have
a wide range of applications, such as sensor, catalysis, ceramics, absorbents and
superconductors. They are particularly attractive for electrochemical applications due to
their low molecular weight, favorable electrochemical properties and low toxicity, and
have been extensively studied for the development of new energy conversion and storage
systems, especially because of the higher electrode surface area, leading to higher
charge/discharge rates, and their rich redox reactions involving different ions.
Particularly, CeO2 is a promising metal oxide as it can present defects such as oxygen
vacancies which play an important role for catalytic, magnetic and electrochemical
properties. In this work, different nanostructures of CeO2 were synthesized by the selfassembly
approach, from molecular precursors, using Pluronic P123 as surfactant and
ethylene glycol as co-surfactant in ethanol solvent in a solvothermal system. The effect
of different synthesis parameters on the morphology, crystallite size and electrochemical
properties were investigated via various analytical techniques. The experimental results
indicated that the synthesis parameters, such as temperature, aging time and chemicals
concentration, strongly influences the morphology and sizes of CeO2, thus enabling the
intentionally design of different nanomaterials.
Como referenciar
MORAES, L.P.R.; MEI, J.; MARANI, D.; FONSECA, F.C.; SUN, Z. Wet-chemical synthesis of CeO2 for electrochemical applications. In: INTERNATIONAL CONFERENCE ON HIGH-PERFORMANCE CERAMICS, 11th, May 25-29, 2019, Kunming, China. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/32207. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.