Study of the effect of radiation in pseudoboehmites obtained by sol-gel process
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2007
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th
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The synthesis of pseudoboehmites by sol-gel process is a promising technique for the synthesis of aluminas with
high specific surface area and with controlled pore diameter. A pseudoboehmite was obtained by sol-gel process
using aluminum nitrate as precursor. The purpose of this work is to study the pseudoboehmite by sol-gel process
using different synthesis conditions and the effect of variation the synthesis conditions in the properties of
pseudoboehmites and aluminas. A 2n
experimental planning was used to study the effect of the 4 synthesis
variables: temperature (room temperature of ~25o
C and low temperature of -3oC), concentration of ammonium
hydroxide, concentration of the PVAL solution and ionizing radiation. The obtained products of the synthesis
with different conditions were characterized by various techniques: scanning electron microscopy (SEM),
differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and infrared absorption spectroscopy.
The samples of the different synthesis were calcined at 1100oC during 4 hours and powder diffraction data of
the products were collected in order to compare their crystallinity. The difractograms indicate that these
products are well crystallized α-alumina.
Como referenciar
MARANHAO, DIEGO S.S.; MIRANDA, LEILA F. de; TERENCE, MAURO C.; ANDRADE e SILVA, LEONARDO G.; KIYOHARA, PEDRO K.; MUNHOZ JUNIOR, ANTONIO H. Study of the effect of radiation in pseudoboehmites obtained by sol-gel process. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th, Sept. 30 - Oct. 5, 2007, Santos, SP. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/15737. Acesso em: 20 Feb 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.