离子结构

Observation of epitaxial overlayer of metals at atomic level has beensuccessfully observed in field ion microscope with 5 ns pulsed-laser heating.

本文用场离子显微镜对金属外延层的结构进行了原子级的观察。

To improve the yield of an Amide-type Tripodal Ligand and investigate its coordination with rare earth ion under mild condition,a series of Amide-type Tripodal Ligands(L1—L4) have been prepared by the reactions of nitrilotriacetic acid and oxalyl chloride with four kinds of amides,respectively.

为了提高酰胺型三脚架型配体的产率，进一步研究其与稀土离子的配位形式及配合物的荧光性能，以氨三乙酸为母体，草酰氯为氯化试剂，与4种胺在较温和的条件下合成了具有三脚架型结构的配体(L1—L4)，并考察了实验条件、反应温度、反应体系溶剂、缚酸剂、反应时间及催化剂对反应产率的影响。

Kinetic spectrophotometric method for the determinationof trace nitrilotriacetic acid;2. To improve the yield of an Amide-type Tripodal Ligand and investigate its coordination with rare earth ion under mild condition,a series of Amide-type Tripodal Ligands(L1—L4) have been prepared by the reactions of nitrilotriacetic acid and oxalyl chloride with four kinds of amides,respectively.

为了提高酰胺型三脚架型配体的产率，进一步研究其与稀土离子的配位形式及配合物的荧光性能，以氨三乙酸为母体，草酰氯为氯化试剂，与4种胺在较温和的条件下合成了具有三脚架型结构的配体(L1—L4)，并考察了实验条件、反应温度、反应体系溶剂、缚酸剂、反应时间及催化剂对反应产率的影响。

Further application of the partially perturbative density functional theory to MX2-NX-H2O solution indicates that the present theory is better than the Poisson-Boltzmann equation and can be used to predict the structures and ion-partitioning of high-valent ions in charged nanopores.

对混合电解质溶液MX2-NX-H2O的结果同样表明本文的部分微扰的密度泛函理论要好于传统的Poisson-Boltzmann方程，且能够预测高价离子在带电纳米孔内的结构与分配。

Metal phosphonate coordination polymers have attracted a great deal of research interest due to their structural diversities and many potential and practical applications in catalysis, ion exchange, intercalation chemistry, absorption, proton conduction, and so on.

金属有机膦酸配位聚合物因其结构上的多样性以及在离子交换、嵌入材料、吸附材料、质子导电材料和催化材料等领域具有潜在的应用前景，已引起人们的广泛关注。

Metal phosphonate coordination polymers have attracted a great deal of research interest due to their structural diversities and many potential applications in catalysis, ion exchange, intercalation chemistry, absorption, proton conduction, photochemistry, and so on.

金属有机膦酸盐配位聚合物因其结构上的多样性以及在离子交换、嵌入材料、吸附材料、质子导电材料、光化学材料和催化材料等领域具有潜在的应用前景，已引起人们的广泛关注。

The results show that the La doping inhibited the phase transformation from anatase to rutile, and improved the optical absorption and surface area of catalysts, also could effectively enhanced the photoactivity.

本论文主要研究了在水热法的基础上进行改进，通过不需要高温煅烧的路线制备了镧离子掺杂TiO_2光催化剂，并通过XRD、UV-Vis、IR、BET等表征手段详细考察了制备条件对催化剂的结构和活性的影响。

The experimental results show that the optimum preparation conditions of catalyst of SO42-/Zr-CLC are achieved :pillaring material is 0.5mol/l ZrOCb,Zr/clay is 3mmol/g,accelerant is (NH4)2SO4 and the quantity of SO42- is 30%, the precursor of Zr-CLC is dipped by SO42- and is calcinated at temperature of 500 癈 for 2h.

将聚合羟基锆阳离子交联剂通过离子交换引入膨润土层间域撑柱膨润土，同时通过浸渍将SO42-引入到膨润土层间的锆阳离子表面，高温焙烧活化，合成了催化性能良好的中孔固体酸催化剂SO42／Zr-CLC，同时对催化剂的性能和结构进行了研究。

It is important in the research and development of SPE to platinize the surface of the Nafion membrane with fine particles and low loadings to keep capital costs within economic bounds.

作为电催化材料的贵金属铂，以微细颗粒的致密结构附于Nafion离子膜表面，对减少铂的担载量，降低成本，意义重大，是SPE开发应用的一个重要课题。

It was proved by IR spectroscopy that Zn2+ and hydrolyzed ion were chelated with polysilicic acid to produce the polymer of zinc-silicon. The reaction was not the simple physical blending,but the chemical reaction forming the inorganic polymer with special structure.

红外光谱证实了PZSS中Zn2+及水解Zn2+离子可与共存的聚硅酸起螯合反应生成锌硅聚合物，聚硅酸与Zn2+反应并不是单纯的物理混合加成作用，而是形成了具有特殊结构的无机高分子的化学反应，这种新型絮凝剂所具有的优良絮凝特性是由各物质间以化学作用为主的物理化学因素共同作用的结果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。