TixZryNiz合金放电容量模式识别与人工神经网络的研究

利用模式识别方法分析了TixZryNiz贮氢合金组分对其放电性能的影响，结果表明：其组成中Ti和Zr对放电容量的作用互相牵制，即适当增加Ti的含量或减少Zr的含量将有助于放电容量的提高；并通过人工神经网络方法对TixZryNiz合金放电容量进行预报，结果发现预报值和实验结果有很好的一致性．     

析氢催化电极的研究概述

综述了析氢反应中高催化活性电极的研究现状,并对其研究前景进行分析.     

La部分取代Ml混合稀土贮氢合金的电化学性能

金属La部分取代M l(混合稀土)的贮氢合金电极M l0.8La0.2N i4.0Mn0.4Co0.4A l0.1(A)容易活化,其充电效率、放电容量、快速放电能力以及荷电保持能力比电极M lN i4.0Mn0.4Co0.4A l0.1(B)分别提高5.5%、7.0%、4.0%和8.2%。电极A放电过电位比电极增大,且循环稳定性下降。     

苏州河底泥重金属形态分析

Nine elements （As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn） in sediment samples at 7 sites （Site 1-7） from Suzhou Creek in Shanghai were analyzed with the Community Bareau of Reference （BCR） （sequential extraction （SE）） protocol and simultaneously extracted metals （SEM）/acid volatile sulfide （AVS） procedure to assess the metal bioavailability and toxicology in this area. The results showed that the BCR extraction can be utilized as an additional tool with the AVS method for assessing the potential bioavailability and toxicity of metals in sediments. Pollution from S5 （Site 5） was more severe than from other sites, especially Pb, Cu and Zn. Among all the sites, more than 80% of the total concentration of Fe existed in the residual fraction, As, Cr, Mn also dominated in the residual fraction （more than 50%）. While Cd, Ni and Zn （more than 35%） were mainly in the non-stable phase. Cu had a strong affinity with oxidizable phase and Pb varied from site to site. The SEM/AVS ratio was less than one in these sediments and results implied that the majority of Zn and Ni （〉 40%） were bound to AVS. In contrast, Pb, Cu and Cd were little bound to AVS due to their low ration of SEM-Pb, Cu, Cd to corresponding total concentration and relatively high Dorewater concentration.     

硫化钠溶液电化学氧化机理探索

硫化钠溶液在石墨阳极上的电化学行为表明 ,阳极氧化是不可逆的过程 ,其速控步骤中形成多硫化物中间体 .温度升高 ,既有利于硫化物的氧化 ,又有利于多硫化物或元素硫的还原 .70°C时 ,Na2 S溶液阳极氧化的标准速率常数 ks为 1 0 - 4.0 8～ 1 0 - 4.3 5cm· s- 1.由于元素硫的溶解以及多硫化物之间的相互转化反应而在时间 -电位曲线上出现电位峰 ,阳极电流增加时该电流峰消失     

The Electrochemical Performance of Ml0.7Mm0.3Ni3.7Co0.7Mn0.4Al0.2 Nanocrystalline Hydrogen Storage Alloy as Metal Hydride Electrode

Ml0.7Mm0.3Ni3.7Co0.7Mn0.4Al0.2 nanocrystalline hydrogen storage materials are prepared by melt-spinning(MS).X-ray diffraction is used for the measurement of the nanocrystalline size.Compared to the electrode of polycrystalline alloys,the property of activation MH9metal hydride)electrode of the alloys with nanometer scale became worse and the inital discharge capacity decreased.It may be ascribed to the decrease of the total amount of rare earth metals and the increase of oxygen on the surface from the analysis of components of the alloys.After heat-treatment,the electrochemical performance of MH electrode of as-spun alloys could be improved,which could be attributed to the alleviation of the lattice strain.     

用线性非饱和激光双共振法测量氢巴尔末β远翼线型

为了测量光学薄的氢巴尔末β远翼光谱线型,本文提出并介绍了一种新的激光光谱法——线性非饱和三能级吸收光谱法,并对主要的实验条件作了讨论。     

用次氯酸钠处理含Cu(CN)32-配离子配水的研究

研究了在不同pH值、温度等条件下次氯酸钠处理含K2Cu(CN)3水样的方法.经过处理后,可使水样中Cu(CN)32-、Cu2 和CN-的去除率均可达96%、96%和98%以上,残留量都低于国家排放标准.     

氢气的制备及铜原子量测定的实验改进探讨

分析了氢气的制备及铜原子量测定的常规实验和微型实验,对实验装置进行了改进,用常规仪器来进行半微量化实验,该实验装置具有装配简单,不漏气,省时,节约仪器和药品的消耗等优点,实验结果令人满意.     

4-苯-1-(1H-1,2,4-三氮唑-3-羰基)-氨基硫脲分子的结构与生物活性关系的研究

应用量子化学方法,在RHF/6-31G水平上计算了4-苯基-1-(1H-1,2,4-三唑-3-羰基)-氨基硫脲分子(C10H10N6OS)的电子结构,探讨了其电子结构与生物活性的关系。结果表明:氢键的存在可能决定了分子稳定构象;该化合物的生物活性位点是三氮唑基、腙基羰基和硫脲基。