Synthesis of Ni nanowires via a hydrazine reduction route in aqueous ethanol solutions assisted by external magnetic fields

Nano-Micro Letters

J. Wang¹  P.Liu¹  L. Y. Zhang¹  L. M. Wei¹  Y. F. Zhang*¹  H. Wei¹ 

关键词: Ni fiber;    Hydrazine reduction;    Magnetic field;    Magnetic properties;   

DOI  :  10.5101/nml.v1i1.p49-52

来源: Open Access House of Science and Technology

【 摘 要 】

One-dimensionalNinanostructuresweresynthesizedviaahydrazinereductionrouteunderexternalmagneticfields.Themixtureofde-ionizedwaterandethanolwasusedasthereactionsolventandhydrazinehydrateasreducingagents.ThemorphologyandpropertiesofNinanostructureswerecharacterizedbyX-raydiffractometer(XRD),scanningelectronmicroscopy(SEM),andvibratingsamplemagnetometer(VSM).Itwasfoundthatthemagneticfieldstrength,concentrationofNiions，reactiontimeandtemperatureaswellaspHvaluesplayedkeyrolesonformation,microstructuresandmagneticpropertiesofNinanowires.Theoptimalwireshavediameterof~200nmandlengthupto~200μm.Andtheircoercivityis~260Oe,whichismuchlargerthanthecommercialNipowdersof31Oe.Thisworkpresentsasimple,low-cost,environment-friendlyandlarge-scaleproductionapproachtofabricateone-dimensionalmagneticmaterials.Theresultingmaterialsmayhavepotentialapplicationsinconductivefilters,magneticsensorsandcatalyticagents.

【 授权许可】

Unknown