Study on the Formation Process of Spindle β-FeOOH Particles;
纺锤形β-FeOOH的形成过程研究
Submicron spindle and pseudocube α-Fe2O3 particles were synthesized at pH=6~9 in the presence of trace Na2SiO3.
以Ferrihydrite(又称水合氧化铁hydrous iron oxide)为反应前驱物,Fe(II)为催化剂,在微量Na2SiO3存在下,控制pH=6~9范围内合成出了亚微米级纺锤形和准立方形α-Fe2O3微粒。
This dissertation reported the preparation of triangular silver, trangular gold nanoplates, spindle silver, gold and gold-silver bimetallic nanoshells by using a.
本论文采用液相化学还原法和表面种子诱导法,分别制备出三角形银、三角形金纳米片和纺锤形银、金和金银双金属纳米壳层,借助于透射电镜(TEM)、扫描电镜(SEM)、X射线衍射(XRD)、紫外可见吸收光谱(UV-Vis)、拉曼光谱(RS)等现代测试技术对金银纳米颗粒及其纳米壳层的尺度、形状、结构特点、光学特性及其形成机理进行了较为系统的研究。
These structures are similiar to Netropsin’s.
根据纺锤霉素(Netropsin)的晶体结构及与DNA作用方式,我们设计合成了3个含SPXX序列的十肽,它们在空间构象上与纺锤霉素类似。
Homogeneous spindle-shaped γ-FeOOH crystallite were prepared by oxidizing the Fe(CO2)2(OH)2(1-x) suspensions system formed in the solution of FeSO4 and NaWCO3 by doping Y3+.
本文还对γ-FeOOH的脱水过程机制和以γ-FeOOH为中间体经热处理制备的纺锤形γ-Fe2O3磁性能作了初步探讨。
As spindle-shaped goethite particles are loose,coating them with SiO2, Ni(OH)2 and Co (OH)2 at different hydrothermal temperatures forms a transition layer of a-Fe2O3 ,which makes them compact effectively.
由于纺锤形铁黄粒子较松散的特点,通过在不同水热温度下包覆硅、钴或镍,使纺锤形铁黄脱掉大量凝并接触部分的羟基,形成一层α-Fe2O3过渡层,粒子得到了有效的密实化,从而制备了高性能的纺锤形金属磁粉。
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