Synthesis, Characterization and Calorimetry of Ni（C4H8N2O3）2Cl2

A coordination complex was synthesized from NiCl2 and dipeptide glycylglycine（GG）. It was characterized by element analysis, NMR and TG methods, and then was determined to be Ni（C4HsN2O3）2Cl2. Using an isoperibolic reaction calorimeter, the standard molar enthalpy of formation of Ni（GG）2Cl2（solid） has been determined to be -（1 674.66±2.02） kJ · mol^-1 at 298.15 K.     

Nickel accumulation and its effects on the survival rate of Spodoptera litura Fabricius under continuous nickel stress

The artificial diets mixed with various concentrations of nickel were offered to the larvae of the phytophagous insect Spodoptera litura Fabricius for 3 generations. Nickel accumulations in the 6th instar larvae, pupae and newly emerged adults of the corresponding generations of S. litura were investigated by Inductively Coupled Plasma-Atomic Emission Spectrometer (ICP-AES), and the effects of nickel accumulations on the survival rate of S. litura were also evaluated by individual rearing. The results showed that nickel accumulated in the 6th instar larvae, pupae and adults of S. litura, and the accu- mulated nickel in all the tested developmental stages within a generation increased with the increase of the nickel doses in the treated diets and showed significant dose-dependent relationship with the nickel doses in the artificial diets. The results also indicated that the nickel accumulations in the 6th instar larvae, pupae, and newly emerged adults from the 3rd generation were higher than those from the 2nd generation, which were also higher than those from the 1st generation. Nickel concentrations in pupae and adults were significantly lower than those in larvae, which indicated that the excessive nickel might be excreted during metamorphosis. Furthermore, larval survival rate, pupation rate and eclosion rate of S. litura in the tested three generations all decreased with the increase of the nickel doses in the treated diets.     

高性能连铸机结晶器铜板的研制

探讨了连铸技术对结晶器铜板性能的要求 ,在比较国内各种不同类型结晶器铜板性能的基础上 ,确定了研制方案 ,所研制的产品在强度、硬度、耐磨性、导热性等方面均优于国内现有结晶器铜板     

Ni／AI2O3金属陶瓷复合材料

用一种新思路设计一种非常规方法制备金属镍和氧化铝金属陶瓷复合材料获得成功。将分别含有氧化镍和氧化铝的先驱体通过溶胶－凝胶法制取均匀和超细的混合粉体，接着将其在1200℃还原氧化镍成金属镍。将还原后的粉末半干压成型后在1460℃进行真空热压烧结，得到Ni/AI2O3复合材料。结果显示这种材料的抗压强度与断裂韧性明显提高，但硬度有所降低。     

丙烯在镍离子高分散催化剂上反应过程的TPSR EPR XPS UV-DRS研究

用ＴＰＳＲ法对丙烯在硫酸镍高分散型催化剂上反应过程进行考察；用ＮＨ３－ＴＰＤ法对ＮＨ３吸附中心进行跟踪，发现除强弱两类酸中心外，确有第三类活性中心，此第三类活性中心可能就是配位催化活性中心。     

高灵敏度的具有Ni过渡层的Co／Cu／Co三明治膜的巨磁电阻效应

研究了具有不同厚度Ｎｉ过渡层的Ｃｏ５．０ｎｍ／Ｃｕ３．５ｎｍ／Ｃｏ５．０ｎｍ三明治膜的巨磁电阻效应，发现Ｎｉ过渡层可以大大地提高材料的灵敏度。不同程度Ｎｉ过渡层的Ｃｏ／Ｃｕ／Ｃｏ三明治膜的磁电阻值在３．５％和５．６％之间，相应的矫顽力在０．９５ｋＡ／ｍ附近。因此，材料的灵敏度最大可以达到３９％ｋＡ．ｍ＾－１。原子力显微镜给出的表面形貌表明Ｎｉ过渡层提高了材料的平整度，从而导致大的巨磁电阻值。而电阻     

α—Al2O3超微粒化学复合镀层硬度及 表面分维度随镀复时间变化规律 …

介绍了在不同镀复时间下，α－Ａｌ２Ｏ３纳米微粒复合镀层硬度和几何分维度的测量结果，应用两步吸附机理，导 出了镀层硬度和表面分维度随镀复时间的关系，理论结果与实际测量基本一致。     

Ni催化剂上CO2和CO的TPD及TPSR研究

在两种Ｎｉ催化剂上，用ＴＰＤ及ＴＰＳＲ技术研究了ＣＯ２及ＣＯ的脱附过程。结果表明，在催化剂Ｉ上存在两种活性中心，在催化剂Ⅱ上存在３种活性中心，并进行了相应的脱附活化能计算及反应机理讨论。