CAJ | 학술논문

利用固相反应法制备了 CoTeMoO6多晶粉体,研究了不同烧成温度下 CoTeMoO6试样的物相组成和显微形貌,对 CoTeMoO6粉体的红外和紫外-可见光谱特征进行了研究。研究结果表明,烧成温度为540~560℃,可制备出纯度高、结晶度好的单一CoTeMoO6相。将合成粉体在600℃下进行保温处理,微晶出现了沿(001)晶面的择优生长,可观察到一组平行解理；CoTeMoO6在中红外波段具有透光波段宽和透过率高的特点,使 CoTeMoO6可以作为潜在的中红外光学材料；CoTeMoO6在可见光区域(450~650 nm)出现了一个吸收带,是由 Co2+外层电子发生d-d跃迁所致。
이용고상반응법제비료 CoTeMoO6다정분체,연구료불동소성온도하 CoTeMoO6시양적물상조성화현미형모,대 CoTeMoO6분체적홍외화자외-가견광보특정진행료연구。연구결과표명,소성온도위540~560℃,가제비출순도고、결정도호적단일CoTeMoO6상。장합성분체재600℃하진행보온처리,미정출현료연(001)정면적택우생장,가관찰도일조평행해리；CoTeMoO6재중홍외파단구유투광파단관화투과솔고적특점,사 CoTeMoO6가이작위잠재적중홍외광학재료；CoTeMoO6재가견광구역(450~650 nm)출현료일개흡수대,시유 Co2+외층전자발생d-d약천소치。
Polycrystalline powders of CoTeMoO6 were prepared via solid reaction method in this paper.The phase composition and microstructure morphology of samples of CoTeMoO6 under different temperature sys-tems were studied,as well as IR and UV-Vis spectra.The results show that when the sintering temperature ri-ses to 540-560 ℃,single phase of CoTeMoO6 with good crystallinity and high purity can be got.The powders of pure phase being sintering at 600 ℃,preferential growth of microcrystalline along the crystal plane of (001) occurs and a set of parallel lines of cleavage are observed.With characteristics of a broad transmitting range and high transparency in mid-infrared region,CoTeMoO6 can be served as a kind of potential optical materials.A absorption band of CoTeMoO6 in visible region(450-650 nm)appears,which may be caused by the d-d transi-tion of outer shell electrons of Co2+.