( 2 ) the affecting factors such as components in precipitation process , the add - on , add on of precipitator , calination temperature and calination time were studied in the preparation process of ceo2 nanoparticles . the tg was used to analyze the processor , the xrd , sem and tem were used to characterize the size of crystal type of products . by a series of designed experiments the interaction between different factors and impacts on the preparation of ceo2 nanoparticles were probed , and the optimum preparation condition was gotten ( 2 )对纳米二氧化铈制备过程中可能的一些影响因素(反应组分的浓度，沉淀剂的加入量，焙烧温度，焙烧时间等)进行了研究，并通过tg ? dta分析手段对前驱物进行热重分析；用xrd 、 sem及tem等测试手段对产物的粒度和晶型进行分析；探索了各个因素对纳米二氧化铈制备的影响及各因素间的交互作用；确定了在该试验条件下制备纳米二氧化铈比较优化的制备条件。
The intermediate - temperature sofc ( solid oxide fuel cell ) ’ s electrolyte with perovskite - type lsgm ( la _ ( 0 . 9 ) sr _ ( 0 . 1 ) ga _ ( 0 . 8 ) mg _ ( 0 . 2 ) o _ ( 3 - ) ) was synthesized using advanced pechini method and solidification method . the thermal and electrical properties of the sintered samples ( synthesized by two different methods ) were measured and compared by thermal expansion and ac impedance spectroscopy ; the phase transformation process and inner structure were measured and compared by xrd , dta - tg and ac impedance spectroscopy . the research results show that the electrolyte synthesized by advanced pechini method has several advantages , such as fine pre - powders , low sintering temperature , reduced or eliminated impurity phases and high conductivity etc . so , the apm is ideal method to synthesize lsgm 采用改进的柠檬酸法(以柠檬酸和edta乙二氨四乙酸为复合络和剂,柠檬酸为燃料)和固相法分别制备了具有钙钛矿结构的中温固体氧化物燃料电池的电解质材料lsgm ( la _ ( 0 . 9 ) sr _ ( 0 . 1 ) ga _ ( 0 . 8 ) mg _ ( 0 . 2 ) o _ ( 3 - ) ) ,用差热?热重分析( dta / tg ) 、 x光衍射分析( xrd ) 、交流阻抗谱技术( ac - impedancespectra ) 、比表面积分析( bet )和烧结收缩率曲线等手段对产物的热分解过程、物相转变和内部结构等进行了表征,并对由这些粉体烧结而成的固体氧化物燃料电池的电解质材料的电导率进行了检测。
In this paper we reported the synthesis of five zirconium proline - n - mtthy ] phosphonate - phosphate of different x value , the structure of them were characterized by ir specirum x - ray diffraction and tg - dsc thermal analysis , it has been found that the samples are highly crystallized with mono phase , the interlaycr distance of zirconium phosphonate - phosphate increase with the increment of x value , when x > l , the interlayer distance increased slightly . the ideal model of x = l of zirconium proline - n - mtthyl phosphonate - phosphate is that organic groups crosslinked with inorganic groups , take up as ababab 本文报道首次合成了不同x值x = 0 . 25 、 0 . 50 、 0 . 66 、 1 . 00 、 1 . 35的层状(脯氨酸- n -甲基膦酸-磷酸氢)锆，通过红外光谱、 x射线衍射、热重分析等手段进行结构表征，研究表明，所合成的混合磷酸锆结晶度较高，晶相比较单一，随着x值的增加，混合磷酸锆的层间距逐渐增大，当x值大于1以上时，层间距的变化较小。
The modified asphalt may be looked upon materials for highway road . the sea and island structure which the island lied in the sea and the sea lied in the island of the modified asphalt was characterized by sem . the modified asphalt was characterized by element analysis , tem , afm , gpc , tg and ft - ir 通过扫描电子显微镜( sem )分析表明改性后沥青呈岛中有海、海中有岛的海岛结构；另外，还采用了元素分析、透射电子显微镜( tem ) 、原子力显微镜( afm ) 、凝胶色谱( gpc ) 、热重分析( tg ) 、红外光谱分析( ft - ir )等分析方法对改性沥青进行了表征，探讨了可能的改性机理。
The suitable preparing condition of the composite has been set down by a series of experiments . the clay / poly - acrylamid superabsorbent composite is characterized by infrared ( ir ) , thermogravimetry , analysis ( tga ) , differential scanning , calorimetry ( dsc ) and x - ray diffraction analysis ( xrd ) 在理论研究方面，利用x射线粉晶衍射光谱、红外吸收光谱、热重分析法、示差扫描量热法、电化学分析等方法对超吸水性复合材料的吸水性能与超吸水性复合材料的组成基团以及结构关系进行了深入探讨。
