聚能切割与套管聚能开窗技术的研究和应用

应用炸药的聚能效应和面对称装填切割原理,研究了串联切割器对油井套管的作用。本方法可作为地下盐层开采中套管的开窗及油气井侧钻开窗的一项新的技术途径。     

CVD和PVD及其在工、模具上的应用

介绍了CVD和PVD的发展历史、性能特点及其在工、模具上的应用。用CVD和PVD技术可以在钢和硬质合金表面沉积高硬度的陶瓷薄膜，改善工、模具的耐磨性和耐烧蚀性，从而大大提高工、模具的使用寿命。     

Zn靶与掺铝ZnO靶共溅射制备ZnO:Al薄膜及其性能

采用Zn靶和ZnO(掺2%Al2O3(质量分数))陶瓷靶在玻璃衬底上共溅射沉积Al掺杂ZnO薄膜,即ZnO:Al透明导电薄膜,研究Zn靶溅射功率(0～90 W)和衬底温度(室温、100℃和200℃)对薄膜结构、形貌、光学和电学性能的影响。结果表明:按双靶共溅射工艺制备的ZnO:Al薄膜的晶体结构均为六角纤锌矿结构,且随着Zn靶溅射功率的增加,薄膜的结晶质量呈现出先改善后变差的规律,薄膜中的载流子浓度逐渐升高,电阻率逐渐降低,而薄膜的光学性能受其影响不大;随着衬底温度的升高,薄膜的结晶性能得到改善,薄膜的可见光透过率增强,电阻率降低。     

室温下多孔Mg（OH）2薄膜的电沉积制备及表征

以SnO2导电玻璃为阴极,使用循环伏安法及计时电流法研究0.1 mol/L硝酸镁水溶液体系中氢氧化镁的电沉积过程,并对恒电势沉积法制备的多孔Mg(OH)2薄膜的形貌、物相及光学性质进行表征。结果表明:所得Mg(OH)2薄膜呈很明显的(011)面择优取向;随着沉积电势或初始pH值的增加,Mg(OH)2二次成核的数量增加;在沉积时间固定为10 min的情况下,沉积电势为1.2、1.3和1.4 V的薄膜在可见光范围内(390~780 nm)的平均透过率依次为90.21%、69.39%和47.12%。     

水下爆炸切割实验研究

论述了线性爆炸切割及环形爆炸聚能切割的研究原理,论证了该系列的技术特性及设计数据,成功地在海上进行了施工。     

双电层电容器电极材料最新研究进展

对双电层电容器炭基电极材料中已经产业化的和颇具产业化前景的活性炭、碳纳米管、炭凝胶等几种材料进行了综述，分析了它们的性质、特点和研究进展。     

超级电容器用纳米炭黑电极的电化学性能

用高导电性、高比表面积的工业炭黑(BET表面积为1080m2/g)作为超级电容器的电极材料。利用循环伏安法研究了不同扫描速度对电极电容特性的影响以及不同循环次数对循环伏安曲线的影响,用不同大小电流恒流充放电研究其充放电性能。结果表明:循环伏安曲线为矩形特征,炭黑电极表现出典型的电容行为,扫描速度与比电容基本无关;恒流充放电的电压和时间关系为线性关系,电极的大电流充放电性能良好,电极的循环寿命高。     

超级电容器氧化锰电极材料的研究进展

氧化锰资源广泛、价格低廉、环境友善、电化学性能良好,有着较好的应用前景,已成为优良的超级电容器电极材料.本文简要介绍了超级电容器氧化锰粉末电极和薄膜电极的特点和制备工艺,综述了合成氧化锰的各种制备技术及其取得的进展和存在的主要问题,并分析了通过掺杂和复合来提高氧化锰电极比容量和导电性的思路和解决方案.     

Preparation of activated carbons from mesophase pitch and their electrochemical properties

The influences of molar ratio of KOH to C and activated temperature on the pore structure and electrochemical property of porous activated carbon from mesophase pitch activated by KOH were investigated. The surface areas and the pore structures of activated carbons were analyzed by nitrogen adsorption, and the electrochemical properties of the activated carbons were studied using two-electrode capacitors in organic electrolyte. The results indicate that the maximum surface area of 3 190 m2/g is obtained at molar ratio of KOH to C of 5:1, the maximum specific capacitance of 122 F/g is attained at molar ratio of KOH to C of 4:1, and 800 ℃ is the proper temperature to obtain the maximum surface area and capacitance.     

Effects of carbon sources on electrochemical performance of Li4Ti5O12/C composite anode materials

Li₄Ti₅O₁₂/C composite materials were synthesized by two-step solid state reaction method with glucose, sucrose, and starch as carbon sources, respectively. The effects of carbon sources on the structure, morphology, and electrochemical performance of Li₄Ti₅O₁₂/C composite materials were investigated by SEM, XRD and electrochemical tests. The results indicate that carbon sources have almost no effect on the structure of Li₄Ti₅O₁₂/C composite materials. The initial discharge capacities of the Li₄Ti₅O₁₂/C composite materials are slightly lower than those of as-synthesized Li₄Ti₅O₁₂. However, Li₄Ti₅O₁₂/C composite materials show better electrochemical rate performance than the as-synthesized Li₄Ti₅O₁₂. The capacity retention (79%) of the Li₄Ti₅O₁₂/C composite materials with starch as carbon source, is higher than that of Li₄Ti₅O₁₂/C composite materials with glucose and sucrose as carbon source at current rate of 2.0C.