CAJ | 학술논문

通过在双温控的化学气相沉积炉中热解四吡啶并卟啉铁镍混合物,合成了碳包覆铁镍纳米颗粒.原料中四吡啶并卟啉铁镍的质量比为7∶3；扫描电镜和透射电镜的结果显示碳包覆铁镍纳米颗粒形貌均匀,直径为100～300 nm;能谱结果显示碳包覆铁镍纳米颗粒是由铁、镍和碳组成；拉曼光谱证明产物有大量的缺陷存在,可能是由于球状结构上的碎片引起的；此外,磁性能测试表明室温下,碳包覆铁镍纳米颗粒有很高的饱和磁化强度,为56.3 emu·g-1;而其产物的矫顽力趋近于零,呈超顺磁性,适合用于催化剂载体.
통과재쌍온공적화학기상침적로중열해사필정병계람철얼혼합물,합성료탄포복철얼납미과립.원료중사필정병계람철얼적질량비위7∶3；소묘전경화투사전경적결과현시탄포복철얼납미과립형모균균,직경위100～300 nm;능보결과현시탄포복철얼납미과립시유철、얼화탄조성；랍만광보증명산물유대량적결함존재,가능시유우구상결구상적쇄편인기적；차외,자성능측시표명실온하,탄포복철얼납미과립유흔고적포화자화강도,위56.3 emu·g-1;이기산물적교완력추근우령,정초순자성,괄합용우최화제재체.
Carbon coated nano Fe-Ni particles (C-FeNi-Ps) have been synthesized through pyrolysis of metal tetrapyrazinoporphyrazines (MPTpzs,M=Fe2+,Ni2+,mFaPTipes∶mNiPTpes=7∶3) in a chemical vapor deposition furnace with two heating zones.The obtained C-FeNi-Ps show a uniform hair-bulb-like structure with diameter ranging from 100～300 nm; C-FeNi-Ps consist of C,Fe and Ni,and have lots of defects due to the edge planes on the ball structure,as supported by Raman spectrum.Besides,Hysteresis curve reveals that saturation magnetization (Ms)of C-FeNi-Ps is 56.3 emu ·g-1,and magnetic hysteresis tends to be 0,indicating superparamagnetic property,suitable for using as catalyst-support particles.