水合肼还原化学镀法镍包覆电气石复合粉体的制备与表征
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摘要
为了改善电气石的电磁性能,本研究以硫酸镍,水合肼为原料,通过化学镀法制备金属镍包覆电气石复合粉体,采用X射线衍射仪、红外吸收光谱、扫描电子显微镜、电子探针能量色散谱仪等对复合粉体进行表征,并利用振动样品磁强计、矢量网络分析仪测试了镍包覆电气石复合粉体的磁滞回线和磁损耗。研究结果显示:水合肼还原化学镀法可在电气石表面包覆纳米金属镍,硫酸镍溶液的浓度为60 mg/L为宜,浓度过高会产生大量的NiSO_4·3N_2H_4和Ni(OH)_2;磁性能测试表明:当硫酸镍浓度为60g/L时,所得镍包覆电气石复合粉体的性能最好,即通过包覆可获得具有一定磁性能的电气石基复合粉体,同时镍包覆电气石粉体的磁损耗也明显提高。
With Nickel sulfate(NiSO_4) and hydrazine hydrate(N_2H_4 ? H_2O) as raw materials,the tourmaline was coated with nickels by electroless plating.The composite powders were analyzed by X-ray diffraction(XRD),scanning electron microscope(SEM),fourier transform infrared spectroscopy(FTIR) and energy dispersive spectrometer(EDS),respectively.Meanwhile,the magnetic properties of composite powders were analyzed with vibration magnetometer and vector network analyzer.It was revealed that the surface of tourmaline can be coated by nano nickels.Compared with tourmaline powder,magnetic properties and magnetic loss of composite powders was improved obviously by coated nickel.
With Nickel sulfate(NiSO_4) and hydrazine hydrate(N_2H_4 ? H_2O) as raw materials,the tourmaline was coated with nickels by electroless plating.The composite powders were analyzed by X-ray diffraction(XRD),scanning electron microscope(SEM),fourier transform infrared spectroscopy(FTIR) and energy dispersive spectrometer(EDS),respectively.Meanwhile,the magnetic properties of composite powders were analyzed with vibration magnetometer and vector network analyzer.It was revealed that the surface of tourmaline can be coated by nano nickels.Compared with tourmaline powder,magnetic properties and magnetic loss of composite powders was improved obviously by coated nickel.
引文
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[2]Yeredla R R,Xu huifang.Incorporating Strong Polarity Minerals of Tourmaline with Semiconductor Titania to Improve the Photosplitting of Water[J].Journal of Physical Chemistry C,2007,112(2):532-539.
[3]Yamaguchi S.Surface electric fields of tourmaline[J].Applied Physics A,1983,31(4):183-185.
[4]李珍,陈文,王雪琴,等.电气石吸附Cu2+,As(Ⅲ),F-影响因素及机理研究[J].矿物岩石,2007,27(4):8-12..
[5]李艳.天然铁电气石Fenton反应降解甲基橙的效能与机理研究[D].哈尔滨理工大学硕士学位论文,2012.
[6]康文杰,王秀峰,江红涛.电气石类负离子释放功能材料研究进展[J].硅酸盐通报,2013,32(3):409-413.
[7]李雯雯,吴瑞华,董颖.电气石红外光谱和红外辐射特性的研究[J].高校地质学报,2008,14(3):426-432.
[8]何登良,刘来宝,黄春梅,等.银离子包覆电气石复合粉体的抗菌性能及机理研究[J].矿物岩石,2016,36(1):115-119.
[9]Zhu D,Liang J,Ding Y,et al.Effect of Heat Treatment on Far Infrared Emission Properties of Tourmaline Powders Modified with a Rare Earth[J].Journal of the American Ceramic Society,2008,91(8):2 588–2 592.
[10]卢琪,张晓晖,吴瑞华,等.电气石粉体电磁屏蔽性能研究[J].非金属矿,2006,29(1):5-7.
[11]张晓晖.微米级电气石表面包覆ZnO及其电磁屏蔽性能研究[D].北京:中国地质大学博士学位论文,2006.
[12]何登良,刘庚,曾明静,等.镍锌铁氧体包覆电气石复合粉体的表征及磁性能分析[J].绵阳师范学院学报,2015(11):45-48.
[13]刘君武,吕珺,王建民,等.粉体化学镀的研究及应用进展[J].金属功能材料,2005,12(4):35-38.
[14]冯福山.超细镍包铜复合粉末的制备工艺研究[D].兰州:兰州理工大学,2011.
[15]刘建国,陈存华,郑家乐.非金属材料化学镀工艺中基体表面活化方法的研究[J].表面技术,2002,31(3):5-8.
[16]刘忠芳.镍包覆氮化硅粉体的制备工艺研究[D].山东:中国海洋大学硕士学位论文,2008.
[17]翟华嶂,戴金辉,李建保,等.纳米镍包覆氮化硅粉体的制备与磁性能研究[J].材料工程,2008,10:204-207.
[18]王锦.镍包覆氧化铝复合粉末的制备[J].中国粉体技术,2009,6(15):49-51.
[19]陈伟,郑怀礼,翟俊,等.聚合硫酸铁钛混凝剂的制备及红外、紫外-可见光谱分析[J].光谱学与光谱分析,2016,36(4):1 038-1 043.
[20]刘少友,吴林冬,赵钟兴,等.Ni-TiO2介孔材料的低热固相合成及其光降解甲基橙的动力学[J].无机材料学报,2009,24(5):902-908.
[21]王文帝,刘金华,王大志,等.氢氧化镍纳米晶的水热合成和结构表征[J].过程工程学报,2006,6(1):128-131.
[22]孙德慧,崔振峰,张吉林,等.氢氧化镍纳米粒子的水热合成与表征[J].长春工程学院学报(自然科学版),2010,11(3):171-174.