【摘 要】
：
A series of cubic phase Co3O4 nano-leaves were prepared via a combined approach of solution reaction and calcination.According to x-ray diffraction and electron
【机 构】
：
State Key Laboratory of New Ceramics and Fine Processing,Department of Chemistry and Department of M
论文部分内容阅读
A series of cubic phase Co3O4 nano-leaves were prepared via a combined approach of solution reaction and calcination.According to x-ray diffraction and electron microscopy,we find that the Co3O4 grain size increases with calcination temperature.This can induce many gaps in the products.M-T and M-H magnetization measurements reveal the typical antiferromagnetic behavior of nano-leaves.The effective moments of the samples prepared at 300,400 and 500℃ are 5.6,5.8 and 5.7μB per formula unit(FU),respectively,larger than the bulk value of 4.14μB/FU.
其他文献
The anti-control of bifurcation refers to the task of creating a certain bifurcation with particular desired properties and location by appropriate controls. We
MnBi compound is fabricated under a magnetic field of 1 T,and the c-axis of hexagonal MnBi crystal is aligned parallel to the magnetic field direction.The satur
氯化铵作为小麦的氮肥施用,营养平衡时,其肥效与硫铵相近;小麦籽粒粗蛋白总量、面筋含量、蛋白质各组分含量亦差异不大。若麦体营养不平衡时,则氯铵肥效降低、吸氯量增加,氯
We investigate the polarization change of partially coherent electromagnetic vortex beams propagating in tur-bulent atmosphere. It is shown that the polarizatio
“非遗”项目解读rn徽剧是我国重要的地方戏曲声腔,主要流行于安徽省境内和江西省婺源县一带.徽剧迄今已有300多年历史,在我国戏曲发展史上曾起过重要作用,不仅孕育了京剧,而
在水稻培体育种中沿用的花药培养基,成分复杂,包括大量元素、微量元素、有机生长物质、刺激素等二十多种化学药品。有些药品来源少,价格昂贵,不易获得。一九七五年以来,我们
The modification of localised surface plasmons of photoluminescence properties of ZnO is studied.It is found that the ultraviolet emission is drastically enhanc
A trajectory following the repelling branch of an equilibrium or a periodic orbit is called a canards solution. Using a continuation method, we find a new type
据2016年10月10日媒体报道，中国运载火箭技术研究院的专家日前在墨西哥瓜达拉哈拉举行的第67届国际宇航大会上称，该院已设计出一款简单的整体式太空飞机，其设计能增加搭载乘客的数量，可在一日内搭载最多20名乘客飞抵太空边缘，然后返回地面。此前的7月31日，来自中国航天科技集团的消息说，我国“组合动力飞行器”项目已经开始研制，这就意味着，普通人上太空的成本和门槛将有望大大降低。此外，9月12日在武汉
扬麦5号(原名扬鉴二)是里下河地区农科所用9—16[系(南大2419×胜利)×阿夫选系]_4作母本,以意大利小麦St1472/506变异单株作父本杂交,于1980年育成。属春性、中熟类型。
Y