锂离子电池正极材料锂锰氧化物的固相合成研究进展

阐述了固相合成反应的原理，综述了锂锰氧化物的几种固相合成方法，并着重介绍了熔融渍法，多步加热法，机械化学法和微波化学法等在锂锰氧化物合成中的研究进展。     

硫脲树脂对Cu~(2+)吸附性能研究

考察了不同吸附时间、pH值和吸附温度下,聚对苯甲酰基硫脲树脂和聚酯基硫脲树脂对Cu2+的吸附性能影响;并对吸附动力学和热力学进行了研究。     

Ion implantation effect on atomic structure of deformed Si, Ir, W, Ni and Cu

It has been revealed, that in Ir subjected to severe plastic deformation, an ultrafine grained structure (UFG) is formed (the grain size of 20-30 nm). Practically no defects have been detected within the grains, while, in the case of Ar⁺ implantation, the subgrain structure with characteristic sizes of about 3-5 nm is formed; defects have been detected within subgrains.The subgrain structure was also revealed in UFG Ni and Cu after severe plastic deformation (SPD) (subgrain size of 3-15 nm), but in the latter case the observed boundary region is broader and subgrain is highly disoriented.     

Diffusion-controlled size-selective chloride ion sensing in the presence of bromide ion using a thin, nanoporous, plasma-polymerized coating on an Ag/AgCl electrode

We have developed a diffusion-controlled size-selective method for sensing chloride ion in the presence of bromide ion, based on a thin, nanoporous, plasma-polymerized coating of hexamethyldisiloxane on an Ag/AgCl electrode. Sub-nanometer-sized pores responsible for a highly cross-linked polymer network in the plasma-polymerized coating allowed diffusion-controlled permeation of chloride ion while blocking the larger bromide ion. An electrode coating of thickness greater than 70 nm enabled chloride detection in the concentration range 1-10 mM in the presence of 0.63 mM bromide ion. Advantages of this approach are: (1) simple design compared with ionophore-based strategies and (2) compatibility with microfabrication and mass production processes.     

Secondary ion emission from Ti and Si targets induced by medium energy Ar ion bombardment - Experiment and computer simulation

The paper presents experimental results of secondary ion energy distributions obtained for Ti and Si targets bombarded by 20-30 keV monoisotope Ar⁺ ion beam. The influence of the extraction voltages between target and a slit of the electrostatic energy analyzer entrance on the energy distributions of secondary ions was investigated. After optimization of the secondary ion extraction system, the mass spectra of secondary ions were also measured. The investigations were done using recently built experimental system. Experimental data are compared with the computer simulation results obtained using TRQR and SATVAL codes.     

真空热还原制锂工艺的技术经济分析

系统介绍了以碳酸锂为原料 ,加入石灰或铝氧土后 ,经焙烧、硅铁或铝粉真空热还原制取金属锂的工艺。本法与氯化锂熔体电解制取锂的工艺相比 ,具有产品成本低、纯度高、环境状况好的优点。     

钼酸铵溶液深度净化工艺探索

对传统的钼酸铵溶液净化工艺及文献介绍工艺进行了较为详细的分析 ,并与实验数据对比分析 ,找到了较为合理的工艺方案     

室温离子注氢CeO2的微结构及价态研究

利用高分辨透射电子显微镜(HRTEM)及电子能量损失谱(EELS)对室温下注入氢离子的CeO2烧结体的显微组织结构和价态进行了原位观察和分析。结果表明：室温注氢，虽可以使严重损伤区内氧的状态发生明显改变，却不能引起CeO2的相转变及Ce的价态改变；这一结果可能与氢离子因尺寸太小不能占据CeO2的正常格点位置从而无法有效形成氧空位以及室温下CeO2中Ce和O的扩散比较困难等因素有关。     

腐蚀环境中海工混凝土抗氯离子侵蚀性

模拟我国南方沿海浪溅区和水位变动区的海工钢筋混凝土结构物的腐蚀环境，对掺入粉煤灰和矿渣的混凝土抗氯离子侵蚀性进行了试验。结果表明，在水灰比相同的条件下，加掺和料的混凝土抗氯离子侵蚀性高于普通混凝土。     

某大厦临时钢平台的设计与安装

首都师范学院国际文化学院大厦工程中有两个距地面 2 5m的过廊。在施工中采用另外设立钢结构临时施工平台的方法 ,与传统的搭设满堂脚手架的施工方法相比 ,为过廊的施工节省了工期和造价