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时间:2020-03-26
《多功能NiFeAu纳米粒子的合成与表征.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第23卷第4期化学研究中国科技核心期刊2012年7月CHEMICALRESEARCHhxyj@henu.edu.cn多功能NiFeAu纳米粒子的合成与表征张晓燕,金邻豫,侯澎,吴君华,李敏,刘红玲¨(1.河南大学化学化工学院,河南开封475004;2.韩国高丽大学工程技术研究所,韩国首尔136—713)摘要:采用一罐纳米乳液法,以聚乙二醇一聚丙二醇一聚乙二醇(PEO—PPO-PEO)三嵌段共聚物为表面活性剂,通过还原前驱体乙酰丙酮镍、乙酰丙酮铁(Ⅱ)和醋酸金,成功制备了NiFeAu纳米粒子.采用透射电镜和X射线衍射仪分析了NiFeAu纳米粒子的形貌
2、和结构;采用傅立叶变换红外光谱仪分析了三嵌段共聚物在NiFeAu纳米颗粒表面的覆盖情况;采用紫外一可见吸收光谱仪和振动样品磁强计测试了纳米粒子的光学和磁学特性.结果表明,三嵌段共聚物成功地结合于NiFeAu纳米颗粒表面;所制备的纳米粒子粒径分布较窄、结晶性能良好,并兼具光学和磁学特性.关键词:纳米乳液法;多功能NiFeAu纳米粒子;合成;光学和磁学特性;表征中图分类号:O614.2文献标志码:A文章编号:1008—10ll(2012)04—0081~04Synthesisandcharacterizati0nofmulti—functionalNi
3、FeAunan0particlesZHANGXiao—yan,JINLin—yu,HOUPeng,WUJun—hua,LIMin,LIUHong—ling(1.CollegeofChemistryandChemicalEngineering,HenanUniversity,Kaifeng475004,Henan,China;2.ResearchInstituteofEngineeringandTechnology,KoreaUniversity,Seoul136—713,Korea)Abstract:NlFeAunanoparticlesweres
4、uccessfullysynthesizedviaaone—potnanoemulsionrouteinvolvingsimultaneousreductionofprecursorsnickelacetylacetonate,iron(Ⅱ)acetylacetonateandgoldacetateinthepresenceofpoly(ethyleneglyco1)一poly(propy1eneglyco1)一poly(ethyleneglyco1)triblockcopolymer(denotedasPEO—PP0一PEO)asthesurfa
5、ctant.Themorphologyandstructureofas—preparednanoparticleswereanalyzedbytransmissionelectronmicroscopyandX—raydiffraction.Thecoverageofthetriblockcopolymeronthesurfaceofas—preparednanoparticleswasexaminedbyFouriertransforminfraredspectrometry;andtheopticalandmagneticpropertieso
6、fthenanoparticleswereinvestigatedusinganultraviolet——visiblelightab——sorbancespectrometerandavibratingsamplemagnetometer,respectively.ResultsindicatethatPEO—PPO—PEOtriblockcopolymeriSsuccessfullycombinedontothesurfaceoftheinor—ganicnanoparticles.As—preparedNiFeAunanoparticlesh
7、aveanarrowsizedistributionandgoodcrystallinity;andtheypossessopticalandmagneticpropertiesaswell,showingpromisingapplicationsasmulti—functionalmaterialsinthefieldsofopticalandbiomedicalengineering.Keywords:nanoemulsionmethod;multi—functionalNiFeAunanoparticles;synthesis;optical
8、andmagneticproperties:characterization近数十年,铁及铁氧体纳米粒子研究的比较多(如—
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