2014
DOI: 10.1016/j.apsusc.2013.10.097
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Comparison of surface effects in SiO2 coated and uncoated nickel ferrite nanoparticles

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Cited by 25 publications
(21 citation statements)
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“…This same behavior was reported by Nadeem et al, 2014 25 when they synthesized and studied SiO 2 coated NiFe 2 O 4 nanoparticles.…”
Section: Resultssupporting
confidence: 69%
“…This same behavior was reported by Nadeem et al, 2014 25 when they synthesized and studied SiO 2 coated NiFe 2 O 4 nanoparticles.…”
Section: Resultssupporting
confidence: 69%
“…At 15 kOe, magnetization value decreased from 5.7 emu/g to 5.3 emu/g and 3.6 emu/g after encapsulated PEG-4000 and silica, respectively. It is much lower than bulk NiFe 2 O 4 , 56 emu/g [3]. It was concluded that the NiFe 2 O 4 exhibited a super paramagnetic.…”
Section: Resultsmentioning
confidence: 93%
“…Material with super paramagnetic properties holds a high magnetization value under the influence of external magnetic field, but when there is no external magnetic field the average value of the magnetization is zero. MNPs have strong tendency to aggregate due to inter particle magnetic interactions and large nanoparticle surface reactivity [3]. To avoid this kind of agglomeration, different routes had been adopted, e.g.…”
Section: Introductionmentioning
confidence: 99%
“…Para as amostras silanizadas não foram observadas mudanças significativas na morfologia, apenas aglomerados aparentemente com aspecto mais rígido e baixa porosidade, possivelmente devido à ligação covalente do silano com a superfície das NPMs, o que possivelmente tem relação com a presença do agente silano (orgânico) que fez um efeito selador na superfície e porosidade interna dos aglomerados. Este mesmo comportamento foi relatado em [51], quando foram sintetizadas e estudadas nanopartículas de NiFe 2 O 4 revestidas com SiO 2 . Para a amostra após funcionalização com quitosana (Fig.…”
Section: Resultsunclassified