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A facile synthesis of magnetite single-crystal particles by employing GO sheets as template for promising application in magnetic fluid 被引量:3
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作者 Zhen Qin Zhen-Hui Ma +1 位作者 Jian-Kang Zhi yong-ling fu 《Rare Metals》 SCIE EI CAS CSCD 2019年第8期764-769,共6页
It was reported a facile strategy to fabricate magnetite(Fe3O4)single-crystal particles with critical single-domain size by employing graphene oxide(GO)sheets as template.In this method,the small-sized Fe2 O3 nanopart... It was reported a facile strategy to fabricate magnetite(Fe3O4)single-crystal particles with critical single-domain size by employing graphene oxide(GO)sheets as template.In this method,the small-sized Fe2 O3 nanoparticles were first synthesized,and then low-temperature annealing under H2 would convert them into large-sized Fe3 O4 single-crystal particles.The synthetic particles with an average size of 100 nm exhibit high saturation magnetization(Ms)of 0.085 A·m^2·g^-1,which is very close to theoretical value,being among the highest values in ever reported for Fe3O4 made from chemical methods.On this basis,the small-sized Fe3 O4 particles(average size of 30 nm)were also fabricated by coating with Na2 CO3 shell. 展开更多
关键词 Fe3O4 Critical SINGLE-DOMAIN size SATURATION MAGNETIZATION Chemical synthesis
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