1991
DOI: 10.1038/353414a0
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Sonochemical synthesis of amorphous iron

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Cited by 1,214 publications
(640 citation statements)
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“…[99] Specifically, chemical bonds are broken upon a very localized cavitational implosion wherein extremely high temperatures (5000-25 000 K) are obtained. [100] Nanosized particles are resulted due to extremely short duration of the process. [96] Although, the high cooling rates of the collapsed bubbles lead to amorphous nanoparticles in the case of volatile precursors, nanostructured products can be produced from non-volatile precursors.…”
Section: Sonochemistrymentioning
confidence: 99%
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“…[99] Specifically, chemical bonds are broken upon a very localized cavitational implosion wherein extremely high temperatures (5000-25 000 K) are obtained. [100] Nanosized particles are resulted due to extremely short duration of the process. [96] Although, the high cooling rates of the collapsed bubbles lead to amorphous nanoparticles in the case of volatile precursors, nanostructured products can be produced from non-volatile precursors.…”
Section: Sonochemistrymentioning
confidence: 99%
“…[96] Although, the high cooling rates of the collapsed bubbles lead to amorphous nanoparticles in the case of volatile precursors, nanostructured products can be produced from non-volatile precursors. [100] In the case of non-volatile precursors, a 200 nm liquid phase ring surrounding the collapsing bubble is in charge of housing the reaction. [101] The macrostream produced due to collapse of bubbles creates a relatively uniform reaction condition for atomic mixing in the synthesis process.…”
Section: Sonochemistrymentioning
confidence: 99%
“…Para os experimentos envolvendo soluções de Fe 3+ e Fe 2+ foram adicionados 500 mL de solução 1 g L -1 em S 2 O 8 2-e 1,00 mL da solução aquosa de CCl 4 previamente sonicada por 1 min, respectivamente. Em todas as situações o volume foi levado a 5,00 mL e os sinais foram medidos no comprimento de onda de máxima absorção do complexo (490 nm).…”
Section: Procedimentosunclassified
“…Em outra aproximação, sabe-se que a eficiência de cavitação depende da freqüência e amplitude das ondas acústicas, potência do sonicador, bem como da tensão superficial, força iônica e temperatura do meio solvente 7 . Também, a presença de sólidos favorece à cavitação no meio irradiado 8,9 .…”
Section: Introductionunclassified
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