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2Â¥2015-10-29 08:27:35
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3Â¥2015-10-29 10:15:52
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4Â¥2016-05-09 16:23:47
dongfang899
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¾ÛÒÒÏ©´¼½µ½âºóÓпÉÄÜÐγÉ̼Âð£¿ÏÂÃæÕâ¸ö·´Ó¦ÖеÄ̼ÊǾÛÒÒ´¼·Ö½âÐγɵÄÂ𣿠C@FeNi3 core/shellstructuredmicrochainswerepreparedbya simplehydrothermalmethod.Typically,1mmolFeCl2 4H2O, 3mmol NiCl2 6H2O and1gpolyvinylalcohol(PVA)weredissolvedin75ml ethyleneglycol.Then5mlN2H4 H2O (80%(v/v)) wasadded.The mixedsolutionwasvigorouslystirredfor30min,andtransferredinto a 100mlTeflon cupandsealedinastainlessautoclave.Theautoclave wasputintoanovenandmaintainedat200 1C for12h,andthenwas allowedtocooldownnaturallytoroomtemperature.Black fluffy powderswereobtainedatthebottomofTeflon cup.The final products weremagneticallyseparatedandwashedwithdistilledwaterand ethanol forthreetimes,respectively.Theproductsweredriedinan ovenat80 1C for12h. |

5Â¥2017-11-15 10:08:50














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